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Harrison TG, Elliott MJ, Tonelli M. Integrating the patient voice: patient-centred and equitable clinical risk prediction for kidney health and disease. Curr Opin Nephrol Hypertens 2024:00041552-990000000-00159. [PMID: 38656234 DOI: 10.1097/mnh.0000000000000993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
PURPOSE OF REVIEW Personalized approaches to care are increasingly common in clinical nephrology. Although risk prediction models are developed to estimate the risk of kidney-disease related outcomes, they infrequently consider the priorities of patients they are designed to help. RECENT FINDINGS This review discusses certain steps in risk prediction tool development where patients and their priorities can be incorporated. Considering principles of equity throughout the process has been the focus of recent literature. SUMMARY Applying a person-centred lens has implications for several aspects of risk prediction research. Incorporating the patient voice may involve partnering with patients as researchers to identify the target outcome for the tool and/or determine priorities for outcomes related to the kidney disease domain of interest. Assessing the list of candidate predictors for associations with inequity is important to ensure the tool will not widen disparity for marginalized groups. Estimating model performance using person-centred measures such as model calibration may be used to compare models and select a tool more useful to inform individual treatment decisions. Finally, there is potential to include patients and families in determining other elements of the prediction framework and implementing the tool once development is complete.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine
- Department of Community Health Sciences
- O'Brien Institute for Public Health, Cumming School of Medicine
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Meghan J Elliott
- Department of Medicine
- Department of Community Health Sciences
- O'Brien Institute for Public Health, Cumming School of Medicine
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Marcello Tonelli
- Department of Medicine
- Department of Community Health Sciences
- O'Brien Institute for Public Health, Cumming School of Medicine
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Morin N, Taylor S, Krahn D, Baghirzada L, Chong M, Harrison TG, Cameron A, Ruzycki SM. In reply: Comment on "In reply: Comment on 'Strategies for intraoperative glucose management: a scoping review'". Can J Anaesth 2024; 71:559-560. [PMID: 38459365 DOI: 10.1007/s12630-024-02711-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 03/10/2024] Open
Affiliation(s)
| | - Sarah Taylor
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Danae Krahn
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Leyla Baghirzada
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Michael Chong
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Anne Cameron
- Department of Obstetrics and Gynecology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Shannon M Ruzycki
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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Klonarakis MP, Dhillon M, Sevinc E, Elliott MJ, James MT, Lam NN, McLaughlin KJ, Ronksley PE, Ruzycki SM, Harrison TG. The effect of goal-directed fluid therapy on delayed graft function in kidney transplant recipients: A systematic review and meta-analysis. Transplant Rev (Orlando) 2024; 38:100834. [PMID: 38335896 DOI: 10.1016/j.trre.2024.100834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/22/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
Delayed graft function (DGF) is a common post-operative complication with potential long-term sequelae for many kidney transplant recipients, and hemodynamic factors and fluid status play a role. Fixed perioperative fluid infusions are the standard of care, but more recent evidence in the non-transplant population has suggested benefit with goal-directed fluid strategies based on hemodynamic targets. We searched MEDLINE, EMBASE, Cochrane Controlled Trials Registry and Google Scholar through December 2022 for randomized controlled trials comparing risk of DGF between goal-directed and conventional fluid therapy in adults receiving a living or deceased donor kidney transplant. Effect estimates were reported with odds ratios (OR) and pooled using random effects meta-analysis. We identified 4 studies (205 participants) that met the inclusion criteria. The use of goal-directed fluid therapy had no significant effect on DGF (OR 1.37 95% CI, 0.34-5.6; p = 0.52; I2 = 0.11). Subgroup analysis examining effects among deceased and living kidney donation did not reveal significant differences in the effects of fluid strategy on DGF between subgroups. Overall, the strength of the evidence for goal-directed versus conventional fluid therapy to reduce DGF was of low certainty. Our findings highlight the need for larger trials to determine the effect of goal-directed fluid therapy on this patient-centered outcome.
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Affiliation(s)
| | - Mannat Dhillon
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Emir Sevinc
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Meghan J Elliott
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ngan N Lam
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kevin J McLaughlin
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shannon M Ruzycki
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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Brar S, Ye F, James MT, Harrison TG, Pannu N. Processes of Care After Hospital Discharge for Survivors of Acute Kidney Injury: A Population-Based Cohort Study. Am J Kidney Dis 2024; 83:216-228. [PMID: 37734688 DOI: 10.1053/j.ajkd.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 06/26/2023] [Accepted: 07/09/2023] [Indexed: 09/23/2023]
Abstract
RATIONALE & OBJECTIVE Survivors of acute kidney injury (AKI) are at high risk of adverse outcomes. Monitoring of kidney function, screening for proteinuria, use of statins and renin-angiotensin-aldosterone system (RAAS) inhibitors, and nephrology follow-up among survivors have not been fully characterized. We examined these processes of care after discharge in survivors of hospitalized AKI. STUDY DESIGN Population-based retrospective cohort study. SETTING & PARTICIPANTS Adults in Alberta, Canada, admitted to the hospital between 2009 and 2017, then followed from their discharge date until 2019 for a median follow-up of 2.7 years. EXPOSURE Hospital-acquired AKI diagnostically conforming to Kidney Disease: Improving Global Outcomes (KDIGO) serum creatinine criteria for stage 2 or stage 3 disease, or the need for acute dialysis. OUTCOME Outcomes after hospital discharge included the proportion of participants who had evaluation of kidney function, were seen by a specialist or general practitioner, and received postdischarge prescriptions for recommended medications for chronic kidney disease (CKD). ANALYTICAL APPROACH Cumulative incidence curves to characterize the proportion of participants who received each process of care outcome within the first 90 days and subsequent 1-year follow-up period after hospital discharge. To avoid risks associated with multiple hypothesis testing, differences were not statistically compared across groups. RESULTS The cohort (n=23,921) included 50.2% men (n=12,015) with a median age of 68.1 [IQR, 56.9-78.8] years. Within 90 days after discharge, 21.2% and 8.6% of patients with and without pre-existing CKD, respectively, were seen by a nephrologist; 60.1% of AKI survivors had at least 1 serum creatinine measured, but only 25.5% had an assessment for albuminuria within 90 days after discharge; 52.7% of AKI survivors with pre-existing CKD, and 51.6% with de novo CKD were prescribed a RAAS inhibitor within 4-15 months after discharge. LIMITATIONS Retrospective data were collected as part of routine clinical care. CONCLUSIONS The proportion of patients receiving optimal care after an episode of AKI in Alberta was low and may represent a target for improving long-term outcomes for this population. PLAIN-LANGUAGE SUMMARY A study in Alberta, Canada, examined the care received by patients with acute kidney disease (AKI) during hospitalization and after discharge between 2007 and 2019. The results showed that a low proportion of patients with moderate to severe AKI were seen by a kidney specialist during hospitalization or within 90 days after discharge. Fewer than 25% of AKI patients had their kidney function monitored with both blood and urine tests within 90 days of discharge. Additionally, about half of AKI survivors with chronic kidney disease (CKD) were prescribed guideline recommended medications for CKD within 15 months after discharge. There is potential to improve health care delivery to these patients both in hospital and after hospital discharge.
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Affiliation(s)
- Sandeep Brar
- Department of Epidemiology and Biostatistics, University of California, San Francisco, California
| | - Feng Ye
- Department of Medicine, Division of Nephrology, University of Alberta, Edmonton, Alberta, Canada
| | - Matthew T James
- Department of Medicine, Division of Nephrology, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
| | - Tyrone G Harrison
- Department of Medicine, Division of Nephrology, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
| | - Neesh Pannu
- Department of Medicine, Division of Nephrology, University of Alberta, Edmonton, Alberta, Canada.
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Donald M, Weaver RG, Smekal M, Thomas C, Quinn RR, Manns BJ, Tonelli M, Bello A, Harrison TG, Tangri N, Hemmelgarn BR. Implementing a Formalized Risk-Based Approach to Determine Candidacy for Multidisciplinary CKD Care: A Descriptive Cohort Study. Can J Kidney Health Dis 2023; 10:20543581231215865. [PMID: 38044897 PMCID: PMC10693221 DOI: 10.1177/20543581231215865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/25/2023] [Indexed: 12/05/2023] Open
Abstract
Background The kidney failure risk equation (KFRE) can be used to predict progression to end-stage kidney disease in a clinical setting. Objective Evaluate implementation of a formalized risk-based approach in nephrologists' outpatient clinics and multidisciplinary chronic kidney disease (CKD) clinics to determine candidacy for multidisciplinary care, and the impact of CKD care selection on clinical outcomes. Design Population-based descriptive cohort study. Setting Alberta Kidney Care South. Patients Adults attending or considered for a multidisciplinary CKD clinic between April 1, 2017, and March 31, 2019. Measurements Exposure-The course of CKD care assigned by the nephrologist: management at multidisciplinary CKD clinic; management by a nephrologist or primary care physician. Primary Outcome-CKD progression, defined as commencement of kidney replacement therapy (KRT). Secondary Outcomes-Death, emergency department visits, and hospitalizations. Methods We linked operational data from the clinics (available until March 31, 2019) with administrative health and laboratory data (available until March 31, 2020). Comparisons among patient groups, courses of care, and clinical settings with negative binomial regression count models and calculated unadjusted and fully adjusted incidence rate ratios. For the all-cause death outcome, we used Cox survival models to calculate unadjusted and fully adjusted hazard ratios. Results Of the 1748 patients for whom a KFRE was completed, 1347 (77%) remained in or were admitted to a multidisciplinary CKD clinic, 310 (18%) were managed by a nephrologist only, and 91 (5%) were referred back for management by their primary care physician. There was a much higher kidney failure risk among patients who remained at or were admitted to a multidisciplinary CKD clinic (median 2-year risk of 34.7% compared with 3.6% and 0.8% who remained with a nephrologist or primary care physician, respectively). None of the people managed by their primary care physician alone commenced KRT, while only 2 (0.6%) managed by a nephrologist without multidisciplinary CKD care commenced KRT. The rates of emergency department visits, hospitalizations, and death were lower in those assigned to management outside the multidisciplinary CKD clinics when compared with those managed in the multidisciplinary care setting. Limitations The follow-up period may not have been long enough to determine outcomes, and potentially limited generalizability given variability of care in multidisciplinary clinics. Conclusions Our findings indicate that a portion of patients can be directed to less resource-intensive care without a higher risk of adverse events. Trial registration Not applicable.
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Affiliation(s)
- Maoliosa Donald
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Robert G. Weaver
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Michelle Smekal
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Chandra Thomas
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Robert R. Quinn
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Braden J. Manns
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Marcello Tonelli
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Aminu Bello
- Department of Medicine, University of Alberta, Edmonton, Canada
| | - Tyrone G. Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Navdeep Tangri
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
- Department of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Brenda R. Hemmelgarn
- Department of Medicine, University of Alberta, Edmonton, Canada
- Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Canada
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Baragar BH, Schorr M, Verdin N, Woodlock T, Clark DA, Hundemer GL, Mathew A, Mustafa RA, Ryz KS, Harrison TG. Identification and Prioritization of Canadian Society of Nephrology Clinical Practice Guideline Topics With Multidisciplinary Stakeholders and People Living With Kidney Disease: A Clinical Research Protocol. Can J Kidney Health Dis 2023; 10:20543581231207142. [PMID: 38020482 PMCID: PMC10676059 DOI: 10.1177/20543581231207142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 09/03/2023] [Indexed: 12/01/2023] Open
Abstract
Background Despite efforts to provide evidence-based care for people living with kidney disease, health care provider goals and priorities are often misaligned with those of individuals with lived experience of disease. Coupled with competing interests of time, resources, and an abundance of suitable guideline topics, identifying and prioritizing areas of focus for the Canadian nephrology community with a patient-oriented perspective is necessary and important. Similar priority-setting exercises have been undertaken to establish research priorities for kidney disease and to standardize outcomes for kidney disease research and clinical care; however, research priorities are distinct from priorities for guideline development. Inclusion of people living with health conditions in the selection and prioritization of guideline topics is suggested by patient engagement frameworks, though the process to operationalizing this is variable. We propose that the Canadian Society of Nephrology Clinical Practice Guideline Committee (CSN CPGC) takes the opportunity at this juncture to incorporate evidence-based prioritization exercises with involvement of people living with kidney disease and their caregivers to inform future guideline activities. In this protocol, we describe our planned research methods to address this. Objective To establish consensus-based guideline topic priorities for the CSN CPGC using a modified Delphi survey with involvement of multidisciplinary stakeholders, including people living with kidney disease and their caregivers. Study design Protocol for a Modified Delphi Survey. Setting Pilot-tested surveys will be distributed via email and conducted using the online platform SurveyMonkey, in both French and English. Participants We will establish a group of multidisciplinary clinical and research stakeholders (both within and outside CSN membership) from Canada, in addition to people living with kidney disease and/or their caregivers. Methods A comprehensive literature search will be conducted to generate an initial list of guideline topics, which will be organized into three main categories: (1) International nephrology-focused guidelines that may require Canadian commentary, (2) Non-nephrology specific guidelines from Canada that may require CSN commentary, and (3) Novel topics for guideline development. Participants will engage in a multi-round Modified Delphi Survey to prioritize a set of "important guideline topics." Measures Consensus will be reached for an item based on both median score on the Likert-type scale (≥ 7) and the percentage agreement (≥ 75%); the Delphi process will be complete when consensus is reached on each item. Guideline topics will then be given a priority score calculated from the total Likert ratings across participants, adjusted for the number of participants. Limitations Potential limitations include participant response rates and compliance to survey completion. Conclusions We propose to incorporate evidence-based prioritization exercises with the engagement of people living with kidney disease and their caregivers to establish consensus-based guideline topics and inform future guidelines activities of the CSN CPGC.
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Affiliation(s)
| | - Melissa Schorr
- Department of Medicine, Western University, London, ON, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Nancy Verdin
- Patient and Community Engagement Research Unit, O’Brien Institute for Public Health, University of Calgary, AB, Canada
| | | | - David A. Clark
- Division of Nephrology, Department of Medicine, Dalhousie University, Halifax, NS, Canada
- Kidney Research Institute Nova Scotia, Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada
| | - Gregory L. Hundemer
- Ottawa Hospital Research Institute, University of Ottawa, ON, Canada
- Division of Nephrology, Department of Medicine, University of Ottawa, ON, Canada
| | - Anna Mathew
- Division of Nephrology, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Reem A. Mustafa
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
- Departments of Internal Medicine and Population Health, The University of Kansas Health System, Kansas City, USA
| | - Krista S. Ryz
- Department of Medicine, University of Manitoba, Winnipeg, Canada
| | - Tyrone G. Harrison
- Department of Medicine, University of Calgary, AB, Canada
- Department of Community Health Sciences, University of Calgary, AB, Canada
- O’Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, AB, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, AB, Canada
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Harrison TG, Tonelli M. Measuring albuminuria or proteinuria: does one answer fit all? Kidney Int 2023; 104:904-909. [PMID: 37652205 DOI: 10.1016/j.kint.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/30/2023] [Accepted: 08/11/2023] [Indexed: 09/02/2023]
Abstract
Measurement of proteinuria is critical for diagnosing and monitoring kidney disease. A variety of measures are available to clinicians and can identify all urinary proteins (proteinuria) or urine albumin alone (albuminuria). Proteinuria and albuminuria can be measured in either a random urine sample or a timed urine collection (often over 24 hours). Although an international guideline advocates the use of the urinary albumin-to-creatinine ratio for most purposes, this measure is not universally available worldwide and historically has been more costly than alternatives. In addition, there may be important differences in accuracy between the albumin-to-creatinine ratio and others based on magnitude of albuminuria, sex, and certain clinical contexts. In this mini review, we review recommendations from international guidelines and discuss specific contexts where the optimal measure of proteinuria is unclear and, in some situations, controversial. We discuss the evidence supporting current recommendations for choice of measure, including the clinical settings of glomerulonephritis, transplantation, and pregnancy. We also discuss how patient sex and cost may impact this decision.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Marcello Tonelli
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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Morin N, Taylor S, Krahn D, Baghirzada L, Chong M, Harrison TG, Cameron A, Ruzycki SM. In reply: Comment on "Strategies for intraoperative glucose management: a scoping review". Can J Anaesth 2023; 70:1852-1853. [PMID: 37749364 DOI: 10.1007/s12630-023-02573-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 09/27/2023] Open
Affiliation(s)
| | - Sarah Taylor
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Danae Krahn
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Leyla Baghirzada
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Michael Chong
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Anne Cameron
- Department of Obstetrics and Gynecology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Shannon M Ruzycki
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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Jeong R, James MT, Quinn RR, Ravani P, Bagshaw SM, Stelfox HT, Pannu N, Clarke A, Wald R, Harrison TG, Niven DJ, Lam NN. Follow-up Care of Critically Ill Patients With Acute Kidney Injury: A Cohort Study. Kidney Med 2023; 5:100685. [PMID: 37538394 PMCID: PMC10394002 DOI: 10.1016/j.xkme.2023.100685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023] Open
Abstract
Rationale & Objective To evaluate follow-up care of critically ill patients with acute kidney injury (AKI). Study Design Retrospective cohort study. Setting & Participants Patients admitted to the intensive care unit (ICU) with AKI in Alberta, Canada from 2005 to 2018, who survived to discharge without kidney replacement therapy or estimated glomerular filtration rate <15 mL/min/1.73 m2. Exposure AKI (defined as ≥50% or ≥0.3 mg/dL serum creatinine increase). Outcomes The primary outcome was the cumulative incidence of an outpatient serum creatinine and urine protein measurement at 3 months postdischarge. Secondary outcomes included an outpatient serum creatinine or urine protein measurement or a nephrologist visit at 3 months postdischarge. Analytical Approach Patients were followed from hospital discharge until the first of each outcome of interest, death, emigration from the province, kidney replacement therapy (maintenance dialysis or kidney transplantation), or end of study period (March 2019). We used non-parametric methods (Aalen-Johansen) to estimate the cumulative incidence functions of outcomes accounting for competing events (death and kidney replacement therapy). Results There were 29,732 critically ill adult patients with AKI. The median age was 68 years (IQR, 57-77), 39% were female, and the median baseline estimated glomerular filtration rate was 72 mL/min/1.73 m2 (IQR, 53-90). The cumulative incidence of having an outpatient creatinine and urine protein measurement at 3 months postdischarge was 25% (95% CI, 25-26). At 3 months postdischarge, 64% (95% CI, 64-65) had an outpatient creatinine measurement, 28% (95% CI, 27-28) had a urine protein measurement, and 5% (95% CI, 4-5) had a nephrologist visit. Limitations We lacked granular data, such as urine output. Conclusions Many critically ill patients with AKI do not receive the recommended follow-up care. Our findings highlight a gap in the transition of care for survivors of critical illness and AKI.
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Affiliation(s)
- Rachel Jeong
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Matthew T. James
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Robert R. Quinn
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Pietro Ravani
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Sean M. Bagshaw
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta, and Alberta Health Services, Edmonton, AB, Canada
| | - Henry T. Stelfox
- Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- O’Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Neesh Pannu
- Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Alix Clarke
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Ron Wald
- Division of Nephrology, St. Michael’s Hospital and the University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON, Canada
| | - Tyrone G. Harrison
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Daniel J. Niven
- Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- O’Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Ngan N. Lam
- Division of Nephrology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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Bau JT, Younis K, Gallagher N, Harrison TG, Leung K, Hemmett J, Qirjazi E. Reduction in Thrombolytic Usage in Hemodialysis Patients Following a Quality Assurance Review: A Research Letter. Can J Kidney Health Dis 2023; 10:20543581231174276. [PMID: 37251299 PMCID: PMC10214048 DOI: 10.1177/20543581231174276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 04/05/2023] [Indexed: 05/31/2023] Open
Abstract
Background Catheter malfunction in hemodialysis (HD) is increasingly managed with recombinant tissue plasminogen activator (rt-PA, alteplase), though evidence of improved catheter function is lacking. Objective To evaluate the effect of a standardized rt-PA administration protocol on rt-PA usage, catheter function, and adverse events. Design Observational quality improvement study. Setting Single, urban, community HD unit in Calgary, Alberta. Patients Patients treated with maintenance in-center HD through central venous catheter. Outcomes Incidence of rt-PA usage, catheter interventions, hospitalizations, and measures of dialysis efficacy. Methods The rt-PA protocol was designed following a consultative and iterative design period with dialysis shareholders, which included focusing on standard objective criteria before use and targeting use to the problematic lumen. Protocol implementation occurred over a 6-month period in 2021. Patient and dialysis data were collected through our regional dialysis electronic health record. Results Implementation of the rt-PA protocol resulted in decreased rt-PA use (standardized per 100 dialysis sessions) compared to the preprotocol period (incidence rate ratio [IRR] of 0.57, 95% confidence interval [CI]: [0.34, 0.94]). Line procedures were also less frequent (IRR = 0.42, 95% CI: [0.18, 0.89]). Hospitalization rates and measures of dialysis efficacy were similar in both periods. Limitations Small sample size with single dialysis center and short duration of follow-up. Conclusions Implementation of a multidisciplinary designed rt-PA administration protocol decreased incident rt-PA usage.
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Affiliation(s)
- Jason T. Bau
- Department of Medicine, University of
Calgary, AB, Canada
| | - Kokab Younis
- Alberta Health Services, Calgary,
Canada
- Faculty of Nursing, University of
Calgary, AB, Canada
| | | | - Tyrone G. Harrison
- Department of Medicine, University of
Calgary, AB, Canada
- Alberta Health Services, Calgary,
Canada
- O’Brien Institute for Public Health,
Cumming School of Medicine, University of Calgary, AB, Canada
| | - Kelvin Leung
- Department of Medicine, University of
Calgary, AB, Canada
- Alberta Health Services, Calgary,
Canada
| | - Juliya Hemmett
- Department of Medicine, University of
Calgary, AB, Canada
- Alberta Health Services, Calgary,
Canada
| | - Elena Qirjazi
- Department of Medicine, University of
Calgary, AB, Canada
- Alberta Health Services, Calgary,
Canada
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11
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Zare-Zadeh S, Manns BJ, Chew DS, Harrison TG, Au F, Quinn AE. Low-value preoperative cardiac testing before low-risk surgical procedures: a population-based cohort study. CMAJ Open 2023; 11:E451-E458. [PMID: 37220955 PMCID: PMC10212574 DOI: 10.9778/cmajo.20220049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND Choosing Wisely Canada (CWC) recommends avoiding noninvasive advanced cardiac testing (e.g., exercise stress testing [EST], echocardiography and myocardial perfusion imaging [MPI]) for preoperative assessment in patients scheduled to undergo low-risk noncardiac surgery. In this study, we assessed the temporal trends in testing, overlapping with the introduction of the CWC recommendations in 2014, and patient and provider factors associated with low-value testing. METHODS In this population-based retrospective cohort study, we used linked health administrative data in Alberta, Canada, to identify adult patients who underwent elective noncardiac surgery between Apr. 1, 2011, and Mar. 31, 2019, who had preoperative noninvasive advanced cardiac tests (EST, echocardiography or MPI) within 6 months before surgery. We included electrocardiography as an exploratory outcome. We excluded patients at high risk using the Revised Cardiac Risk Index (score ≥ 1 considered to indicate high risk), and modelled patient and temporal factors associated with the number of tests. RESULTS We identified 1 045 896 elective noncardiac operations performed in 798 599 patients and 25 599 advanced preoperative cardiac tests; 2.1% of operations were preceded by advanced cardiac testing. The incidence of testing increased over the study period, and, by 2018/19, patients were 1.3 times (95% confidence interval 1.2-1.4) more likely to receive a preoperative advanced test compared to 2011/12. Urban patients were more likely to receive a preoperative advanced cardiac test than their rural counterparts. Electrocardiography was the most common preoperative cardiac test, preceding 182 128 procedures (17.4%). INTERPRETATION Preoperative advanced cardiac testing was infrequent in adult Albertans who underwent low-risk elective noncardiac operations. Despite CWC recommendations, the use of some tests appears to be increasing, and there was substantial variation across geographic areas.
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Affiliation(s)
- Siavash Zare-Zadeh
- Cumming School of Medicine (Zare-Zadeh, Manns, Chew, Harrison, Au), Department of Community Health Sciences (Manns, Harrison, Quinn), Libin Cardiovascular Institute (Manns, Chew) and O'Brien Institute for Public Health (Manns), University of Calgary, Calgary, Alta
| | - Braden J Manns
- Cumming School of Medicine (Zare-Zadeh, Manns, Chew, Harrison, Au), Department of Community Health Sciences (Manns, Harrison, Quinn), Libin Cardiovascular Institute (Manns, Chew) and O'Brien Institute for Public Health (Manns), University of Calgary, Calgary, Alta.
| | - Derek S Chew
- Cumming School of Medicine (Zare-Zadeh, Manns, Chew, Harrison, Au), Department of Community Health Sciences (Manns, Harrison, Quinn), Libin Cardiovascular Institute (Manns, Chew) and O'Brien Institute for Public Health (Manns), University of Calgary, Calgary, Alta
| | - Tyrone G Harrison
- Cumming School of Medicine (Zare-Zadeh, Manns, Chew, Harrison, Au), Department of Community Health Sciences (Manns, Harrison, Quinn), Libin Cardiovascular Institute (Manns, Chew) and O'Brien Institute for Public Health (Manns), University of Calgary, Calgary, Alta
| | - Flora Au
- Cumming School of Medicine (Zare-Zadeh, Manns, Chew, Harrison, Au), Department of Community Health Sciences (Manns, Harrison, Quinn), Libin Cardiovascular Institute (Manns, Chew) and O'Brien Institute for Public Health (Manns), University of Calgary, Calgary, Alta
| | - Amity E Quinn
- Cumming School of Medicine (Zare-Zadeh, Manns, Chew, Harrison, Au), Department of Community Health Sciences (Manns, Harrison, Quinn), Libin Cardiovascular Institute (Manns, Chew) and O'Brien Institute for Public Health (Manns), University of Calgary, Calgary, Alta
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12
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Harrison TG, Tam TA, Elliott MJ, Ahmed SB, Riehl-Tonn V, Swamy AKR, Benham JL, Peterson J, MacRae JM. Sex differences in COVID-19 symptoms and outcomes in people with kidney failure treated with dialysis: a prospective cohort study. J Nephrol 2023; 36:851-860. [PMID: 36087218 PMCID: PMC9463668 DOI: 10.1007/s40620-022-01448-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/20/2022] [Indexed: 01/08/2023]
Abstract
BACKGROUND People with kidney failure treated with dialysis are at increased risk of SARS-CoV-2 infection, and severe COVID-19 outcomes such as hospitalization and death. Though there are well-defined sex differences in outcomes for the general population with COVID-19, we do not know whether this translates into kidney failure populations. We aimed to estimate the differences in COVID-19 symptoms and clinical outcomes between males and females treated with maintenance dialysis. METHODS In this prospective observational cohort study, we included adults treated with maintenance dialysis in Southern Alberta, Canada that tested positive for COVID-19 between March 2020 and February 2022. We examined the association between sex (dichotomized as male and female) with COVID-19 symptoms including fever, cough, malaise, shortness of breath, muscle joints/aches, nausea and/or vomiting, loss of appetite, diarrhea, headache, sore throat, and loss of smell/taste using chi-square or Fisher's exact tests. Secondary outcomes included 30-day hospitalization, ICU admission, and death. RESULTS Of 1,329 cohort participants, 246 (18.5%) tested positive for SARS-CoV-2 and were included in our study, including 95 females (39%). Of 207 participants with symptoms assessed, females had less frequent fever (p = 0.003), and more nausea or vomiting (p = 0.003) compared to males, after correction for multiple testing. Males exhibited no symptoms 25% of the time, compared with 10% of females (p = 0.01, not significant when corrected for multiple testing). We did not identify statistically significant differences in clinical outcomes between the sexes, though vaccinated patients had lower odds of hospitalization. CONCLUSIONS Sex differences in COVID-19 symptoms were identified in a cohort of patients treated with maintenance dialysis, which may inform sex-specific screening strategies in dialysis units. Further work is necessary to examine mechanisms for identified sex differences.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Trinity A Tam
- Department of Medicine, University of Calgary, Calgary, AB, Canada
| | - Meghan J Elliott
- Department of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Sofia B Ahmed
- Department of Medicine, University of Calgary, Calgary, AB, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | | | - Asha K R Swamy
- Department of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jamie L Benham
- Department of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | | | - Jennifer M MacRae
- Department of Medicine, University of Calgary, Calgary, AB, Canada.
- Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada.
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Departments of Medicine and Cardiac Sciences, Alberta Kidney Care South, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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13
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Harrison TG, Hemmelgarn BR, James MT, Sawhney S, Manns BJ, Tonelli M, Ruzycki SM, Zarnke KB, Wilson TA, McCaughey D, Ronksley PE. Prediction of major postoperative events after non-cardiac surgery for people with kidney failure: derivation and internal validation of risk models. BMC Nephrol 2023; 24:49. [PMID: 36894895 PMCID: PMC9999551 DOI: 10.1186/s12882-023-03093-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/22/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND People with kidney failure often require surgery and experience worse postoperative outcomes compared to the general population, but existing risk prediction tools have excluded those with kidney failure during development or exhibit poor performance. Our objective was to derive, internally validate, and estimate the clinical utility of risk prediction models for people with kidney failure undergoing non-cardiac surgery. DESIGN, SETTING, PARTICIPANTS, AND MEASURES This study involved derivation and internal validation of prognostic risk prediction models using a retrospective, population-based cohort. We identified adults from Alberta, Canada with pre-existing kidney failure (estimated glomerular filtration rate [eGFR] < 15 mL/min/1.73m2 or receipt of maintenance dialysis) undergoing non-cardiac surgery between 2005-2019. Three nested prognostic risk prediction models were assembled using clinical and logistical rationale. Model 1 included age, sex, dialysis modality, surgery type and setting. Model 2 added comorbidities, and Model 3 added preoperative hemoglobin and albumin. Death or major cardiac events (acute myocardial infarction or nonfatal ventricular arrhythmia) within 30 days after surgery were modelled using logistic regression models. RESULTS The development cohort included 38,541 surgeries, with 1,204 outcomes (after 3.1% of surgeries); 61% were performed in males, the median age was 64 years (interquartile range [IQR]: 53, 73), and 61% were receiving hemodialysis at the time of surgery. All three internally validated models performed well, with c-statistics ranging from 0.783 (95% Confidence Interval [CI]: 0.770, 0.797) for Model 1 to 0.818 (95%CI: 0.803, 0.826) for Model 3. Calibration slopes and intercepts were excellent for all models, though Models 2 and 3 demonstrated improvement in net reclassification. Decision curve analysis estimated that use of any model to guide perioperative interventions such as cardiac monitoring would result in potential net benefit over default strategies. CONCLUSIONS We developed and internally validated three novel models to predict major clinical events for people with kidney failure having surgery. Models including comorbidities and laboratory variables showed improved accuracy of risk stratification and provided the greatest potential net benefit for guiding perioperative decisions. Once externally validated, these models may inform perioperative shared decision making and risk-guided strategies for this population.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.,Cumming School of Medicine, Libin Cardiovascular Institute, University of Calgary, Calgary, AB, Canada
| | - Simon Sawhney
- Aberdeen Centre for Health Data Sciences, University of Aberdeen, Aberdeen, Scotland, UK.,National Health Service, Grampian, Aberdeen, Scotland, UK
| | - Braden J Manns
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.,Cumming School of Medicine, Libin Cardiovascular Institute, University of Calgary, Calgary, AB, Canada
| | - Marcello Tonelli
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.,Cumming School of Medicine, Libin Cardiovascular Institute, University of Calgary, Calgary, AB, Canada
| | - Shannon M Ruzycki
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Kelly B Zarnke
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Todd A Wilson
- Department of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Deirdre McCaughey
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Paul E Ronksley
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Cal Wenzel Precision Health Building, Room 3E18B, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
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14
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O'Rielly CM, Harrison TG, Andruchow JE, Ronksley PE, Sajobi T, Robertson HL, Lorenzetti D, McRae AD. Risk Scores for Clinical Risk Stratification of Emergency Department Patients With Chest Pain but No Acute Myocardial Infarction: A Systematic Review. Can J Cardiol 2023; 39:304-310. [PMID: 36641050 DOI: 10.1016/j.cjca.2022.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/11/2022] [Accepted: 12/11/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Chest pain is a common cause for emergency department (ED) presentations. After myocardial infarction (MI) has been ruled out by means of electrocardiography and troponin testing, decisions around anatomic or functional testing may be informed by clinical risk scores. We conducted a systematic review to synthesize evidence of the prognostic performance of chest pain risk scores among ED patients who have had MI ruled out by means of a high-sensitivity troponin assay. METHODS We queried multiple databases from inception to May 17, 2022. We included studies that quantified risk of 30-day major adverse cardiac events (MACE), at different cutoffs of clinical risk scores, among adult patients who had MI ruled out by means of a high-sensitivity troponin assay. Prognostic performance of each score was synthesized and described, but meta-analysis was not possible. RESULTS Six studies met inclusion criteria. Short-term MACE risk among patients who had MI ruled out by means of high-sensitivity cardiac troponin assays was very low. The HEART score, with a cutoff of 3 or less, predicted a very low risk of MACE among the greatest proportion of patients. Other scores had lower sensitivity or classified fewer patients as low risk. CONCLUSIONS The HEART score with a cutoff value of 3 or less accurately identified the greatest number of patients at low risk of 30-day MACE. However, MACE risk among patients who have MI ruled out by means of high-sensitivity troponin testing is sufficiently low that clinical risk stratification or noninvasive testing may be of little additional value in identifying patients with coronary disease.
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Affiliation(s)
- Connor M O'Rielly
- Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - James E Andruchow
- Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Tolu Sajobi
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - Diane Lorenzetti
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Health Sciences Library, University of Calgary, Calgary, Alberta, Canada
| | - Andrew D McRae
- Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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15
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Morin N, Taylor S, Krahn D, Baghirzada L, Chong M, Harrison TG, Cameron A, Ruzycki SM. Strategies for intraoperative glucose management: a scoping review. Can J Anaesth 2023; 70:253-270. [PMID: 36450943 DOI: 10.1007/s12630-022-02359-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 12/03/2022] Open
Abstract
PURPOSE Perioperative hyperglycemia is associated with adverse outcomes for patients with and without diabetes. Guidelines and published protocols for intraoperative glycemic management have substantial variation in their recommendations. We sought to characterize the current evidence-guiding intraoperative glycemic management in a scoping review. SOURCES Our search strategy included MEDLINE (Ovid and EBSCO), PubMed, PubMed Central, EMBASE, CINAHL, Cochrane Library, SciVerse Scopus, and Web of Science and a gray literature search of Google, Google Scholar, hand searching of the reference lists of included articles, OAISter, institutional protocols, and ClinicalTrails.gov. PRINCIPAL FINDINGS We identified 41 articles that met our inclusion criteria, 24 of which were original research studies. Outcomes and exposures were defined heterogeneously across studies, which limited comparison and synthesis. Investigators often created arbitrary and differing categories of glucose values rather than analyzing glucose as a continuous variable, which limited our ability to combine results from different studies. In addition, the study populations and surgery types also varied considerably, with few studies performed during day surgeries and specific surgical disciplines. Study populations often included more than one type of surgery, indication, and urgency that were expected to have varying physiologic and inflammatory responses. Combining low- and high-risk patients in the same study population may obscure the harms or benefits of intraoperative glycemic management for high-risk procedures or patients. CONCLUSION Future studies examining intraoperative glycemic management should carefully consider the study population, surgical characteristics, and pre- and postoperative management of hyperglycemia.
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Affiliation(s)
| | - Sarah Taylor
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Danae Krahn
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Leyla Baghirzada
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Michael Chong
- Department of Anesthesiology, Perioperative and Pain Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Room 1422, 3330 Hospital Drive NW, Calgary, AB, T2N 2T9, Canada
| | - Anne Cameron
- Department of Obstetrics and Gynecology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Shannon M Ruzycki
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Room 1422, 3330 Hospital Drive NW, Calgary, AB, T2N 2T9, Canada.
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16
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Fenton TR, Elmrayed S, Scime NV, Tough SC, Pinto J, Sabet F, Wollny K, Lee Y, Harrison TG, Alladin-Karan B, Kramer MS, Ospina MB, Lorenzetti DL, Madubueze A, Leung AA, Kumar M. Small for date preterm infants and risk of higher blood pressure in later life: A systematic review and meta-analysis. Paediatr Perinat Epidemiol 2023. [PMID: 36688258 DOI: 10.1111/ppe.12955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/24/2023]
Abstract
BACKGROUND Historical reports suggest that infants born small for gestational age (SGA) are at increased risk for high blood pressure (BP) at older ages after adjustment for later age body size. Such adjustment may be inappropriate since adiposity is a known cause of cardiovascular and metabolic disease. OBJECTIVES To assess the association between SGA births and later BP among preterm births, considering potential background confounders and over-adjustment for later body size. METHODS A database search of studies up to October 2022 included MEDLINE, EMBASE and CINAHL. Studies were included if they reported BP (systolic [SBP] or diastolic [DBP]) (outcomes) for participants born preterm with SGA (exposure) or non-SGA births. All screening, extraction steps, and risk of bias (using the Risk of Bias In Non-randomised Studies of Interventions [ROBINS-I] tool) were conducted in duplicate by two reviewers. Data were pooled in meta-analysis using random-effects models. We explored potential sources of heterogeneity. RESULTS We found no meaningful difference in later BP between preterm infants with and without SGA status at birth. Meta-analysis of 25 studies showed that preterm SGA, compared to preterm non-SGA, was not associated with higher BP at age 2 and older with mean differences for SBP 0.01 mmHg (95% CI -0.10, 0.12, I2 = 59.8%, n = 20,462) and DBP 0.01 mm Hg (95% CI -0.10, 0.12), 22 studies, (I2 = 53.0%, n = 20,182). Adjustment for current weight did not alter the results, which could be due to the lack of differences in later weight status in most of the included studies. The included studies were rated to be at risk of bias due to potential residual confounding, with a low risk of bias in other domains. CONCLUSIONS Evidence indicates that preterm infants born SGA are not at increased risk of developing higher BP as children or as adults as compared to non-SGA preterm infants.
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Affiliation(s)
- Tanis R Fenton
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Seham Elmrayed
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Global Health and Human Ecology Institute, American University in Cairo, Cairo, Egypt
| | - Natalie V Scime
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Suzanne C Tough
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Jahaira Pinto
- Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Fatemeh Sabet
- Interior Health Authority, Kelowna, British Columbia, Canada
| | - Krista Wollny
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
| | - Yoonshin Lee
- Senior Persons Living Connected, Hong Fook Mental Health Association, Toronto, Ontario, Canada
| | - Tyrone G Harrison
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Bibi Alladin-Karan
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michael S Kramer
- Departments of Pediatrics and of Epidemiology and Biostatistics, McGill University Faculty of Medicine, Montreal, Quebec, Canada
| | - Maria B Ospina
- Department of Public Health Sciences, Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada
| | - Diane L Lorenzetti
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Health Sciences Library and Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Ada Madubueze
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Alexander A Leung
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Manoj Kumar
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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17
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Harrison TG, Hemmelgarn BR, Farragher JF, O'Rielly C, Donald M, James MT, McCaughey D, Ruzycki SM, Zarnke KB, Ronksley PE. Perioperative management for people with kidney failure receiving dialysis: A scoping review. Semin Dial 2023; 36:57-66. [PMID: 35384079 DOI: 10.1111/sdi.13081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/21/2022] [Accepted: 03/23/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND People with kidney failure receiving dialysis (CKD-G5D) are more likely to undergo surgery and experience poorer postoperative outcomes than those without kidney failure. In this scoping review, we aimed to systematically identify and summarize perioperative strategies, protocols, pathways, and interventions that have been studied or implemented for people with CKD-G5D. METHODS We searched MEDLINE, EMBASE, CINAHL Plus, Cochrane Database of Systematic Reviews, and Cochrane Controlled Trials registry (inception to February 2020), in addition to an extensive grey literature search, for sources that reported on a perioperative strategy to guide management for people with CKD-G5D. We summarized the overall study characteristics and perioperative management strategies and identified evidence gaps based on surgery type and perioperative domain. Publication trends over time were assessed, stratified by surgery type and study design. RESULTS We included 183 studies; the most common study design was a randomized controlled trial (27%), with 67% of publications focused on either kidney transplantation or dialysis vascular access. Transplant-related studies often focused on fluid and volume management strategies and risk stratification, whereas dialysis vascular access studies focused most often on imaging. The number of publications increased over time, across all surgery types, though driven by non-randomized study designs. CONCLUSIONS Despite many current gaps in perioperative research for patients with CKD-G5D, evidence generation supporting perioperative management is increasing, with recent growth driven primarily by non-randomized studies. Our review may inform organization of evidence-based strategies into perioperative care pathways where evidence is available while also highlighting gaps that future perioperative research can address.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Janine F Farragher
- Department of Occupational Science and Occupational Therapy, University of Toronto, Toronto, Ontario, Canada
| | - Connor O'Rielly
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Maoliosa Donald
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Deirdre McCaughey
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shannon M Ruzycki
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Kelly B Zarnke
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Ruzycki SM, Kuzma T, Harrison TG, McKeen J, Helmle K, Beesoon S, Brindle M, Cameron A. Implementation of a Perioperative Glycemic Management Quality Improvement Pathway in Gynecologic Oncology Patients: A Single-cohort Interrupted Time-series Analysis. Can J Diabetes 2022; 47:228-235.e5. [PMID: 36681547 DOI: 10.1016/j.jcjd.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 09/14/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE We evaluated implementation and clinical outcomes of a perioperative glycemic management pathway in gynecologic oncology. METHODS Interrupted time-series analysis was used to compare process, balancing and outcome measures and clinical outcomes from 18 months preimplementation to 18 months postimplementation. RESULTS Compared with in the preimplementation period, the proportion of patients who underwent preoperative screening with glycated hemoglobin in the postimplementation period increased by 11.3% (95% confidence interval [CI], 5.0% to 17.7%; p=0.001). The proportion of patients with diabetes who had at least 1 blood glucose measurement after surgery increased by 15.3% (95% CI, -3.2% to 33.8%; p=0.10). There was no change in the proportion of patients who had any hyperglycemia or moderate or severe hyperglycemia. The median length of stay decreased by 0.42 days (95% CI, -0.91 to 0.07 days; p=0.09). There were major quality gaps in perioperative glycemic management that did not clearly improve after implementation of a multidisciplinary care pathway. CONCLUSION Optimal strategies for improvement of perioperative glycemic management are not yet known.
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Affiliation(s)
- Shannon M Ruzycki
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - Tamara Kuzma
- Department of Obstetrics and Gynecology, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Julie McKeen
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Karmon Helmle
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sanjay Beesoon
- Surgery Strategic Clinical Network, Alberta Health Services, Edmonton, Alberta, Canada
| | - Mary Brindle
- Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Anna Cameron
- Department of Obstetrics and Gynecology, Cumming School of Medicine, Calgary, Alberta, Canada
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19
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Harrison TG, Hemmelgarn BR, James MT, Sawhney S, Lam NN, Ruzycki SM, Wilson TA, Ronksley PE. Using the Revised Cardiac Risk Index to Predict Major Postoperative Events for People With Kidney Failure: An External Validation and Update. CJC Open 2022; 4:905-912. [PMID: 36254324 PMCID: PMC9568714 DOI: 10.1016/j.cjco.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022] Open
Abstract
Background People with kidney failure have high risk of postoperative morbidity and mortality. Although the revised cardiac risk index (RCRI) is used to estimate the risk of major postoperative events, it has not been validated in this population. We aimed to externally validate the RCRI and determine whether updating the model improved predictions for people with kidney failure. Methods We derived a retrospective, population-based cohort of adults with kidney failure (maintenance dialysis or sustained estimated glomerular filtration rate < 15 mL/min per 1.73 m2) who had surgery in Alberta, Canada between 2005 and 2019. We categorized participants based on RCRI variables and assigned risk estimates of death or major cardiac events, and then estimated predictive performance. We re-estimated the coefficients for each RCRI variable and internally validated the updated model. Net benefit was estimated with decision curve analysis. Results After 38,541 surgeries, 1204 events (3.1%) occurred. The estimated C-statistic for the original RCRI was 0.64 (95% confidence interval: 0.62, 0.65). Examination of calibration revealed significant risk overestimation. In the re-estimated RCRI model, discrimination was marginally different (C-statistic 0.67 [95% confidence interval: 0.66, 0.69]), though calibration was improved. No net benefit was observed when the data were examined with decision curve analysis, whereas the original RCRI was associated with harm. Conclusions The RCRI performed poorly in a Canadian kidney failure cohort and significantly overestimated risk, suggesting that RCRI use in similar kidney failure populations should be limited. A re-estimated kidney failure-specific RCRI may be promising but needs external validation. Novel perioperative models for this population are urgently needed.
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Affiliation(s)
- Tyrone G. Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R. Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Matthew T. James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Simon Sawhney
- Aberdeen Centre for Health Data Sciences, University of Aberdeen, Aberdeen, Scotland
- National Health Service, Grampian, Aberdeen, Scotland
| | - Ngan N. Lam
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shannon M. Ruzycki
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Todd A. Wilson
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Paul E. Ronksley
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Corresponding author: Dr Paul E. Ronksley, Department of Community Health Sciences, Cumming School of Medicine, University of Calgary TRW 3E18B, 3280 Hospital Drive NW, Calgary, Alberta T2N 4Z6, Canada.Tel.: +1-403-220-8820.
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20
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Love S, Harrison TG, Fox DE, Donald M, Verdin N, Hemmelgarn BR, Elliott MJ. Healthcare provider perspectives on integrating peer support in non-dialysis-dependent chronic kidney disease care: a mixed methods study. BMC Nephrol 2022; 23:152. [PMID: 35436850 PMCID: PMC9014775 DOI: 10.1186/s12882-022-02776-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 03/28/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Peer support complements traditional models of chronic kidney disease (CKD) care through sharing of peer experiences, pragmatic advice, and resources to enhance chronic kidney disease self-management and decision-making. As peer support is variably offered and integrated into multi-disciplinary CKD care, we aimed to characterize healthcare providers' experiences and views on peer support provision for people with non-dialysis-dependent CKD within Canada. METHODS In this concurrent mixed methods study, we used a self-administered online survey to collect information from multi-disciplinary CKD clinic providers (e.g., nurses, nephrologists, allied health professionals) on peer support awareness, program characteristics and processes, perceived value, and barriers and facilitators to offering peer support in CKD clinics. Results were analyzed descriptively. We undertook semi-structured interviews with a sample of survey respondents to elaborate on perspectives about peer support in CKD care, which we analyzed using inductive, content analysis. RESULTS We surveyed 113 providers from 49 clinics. Two thirds (66%) were aware of formal peer support programs, of whom 19% offered in-house peer support through their clinic. Peer support awareness differed by role and region, and most referrals were made by social workers. Likert scale responses suggested a high perceived need of peer support for people with CKD. Top cited barriers to offering peer support included lack of peer support access and workload demands, while facilitators included systematic clinic processes for peer support integration and alignment with external programs. Across 18 interviews, we identified themes related to peer support awareness, logistics, and accessibility and highlighted a need for integrated support pathways. CONCLUSIONS Our findings suggest variability in awareness and availability of peer support among Canadian multi-disciplinary CKD clinics. An understanding of the factors influencing peer support delivery will inform strategies to optimize its uptake for people with advanced CKD.
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Affiliation(s)
- Shannan Love
- Department of Medicine, Cumming School of Medicine, University of Calgary, TRW Building, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, TRW Building, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada.,Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Danielle E Fox
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Maoliosa Donald
- Department of Medicine, Cumming School of Medicine, University of Calgary, TRW Building, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada
| | - Nancy Verdin
- Medicine Strategic Clinical Network, Patient & Family Advisory Council, Alberta Health Services, Calgary, Alberta, Canada.,Patient and Community Engagement Research (PaCER) Program, O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
| | | | - Meghan J Elliott
- Department of Medicine, Cumming School of Medicine, University of Calgary, TRW Building, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada. .,Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
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21
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Harrison TG, Ronksley PE, James MT, Ruzycki SM, Tonelli M, Manns BJ, Zarnke KB, McCaughey D, Schneider P, Wick J, Hemmelgarn BR. Mortality and cardiovascular events in adults with kidney failure after major non-cardiac surgery: a population-based cohort study. BMC Nephrol 2021; 22:365. [PMID: 34736410 PMCID: PMC8569960 DOI: 10.1186/s12882-021-02577-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 10/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND People with kidney failure have a high incidence of major surgery, though the risk of perioperative outcomes at a population-level is unknown. Our objective was to estimate the proportion of people with kidney failure that experience acute myocardial infarction (AMI) or death within 30 days of major non-cardiac surgery, based on surgery type. METHODS In this retrospective population-based cohort study, we used administrative health data to identify adults from Alberta, Canada with major surgery between April 12,005 and February 282,017 that had preoperative estimated glomerular filtration rates (eGFRs) < 15 mL/min/1.73m2 or received chronic dialysis. The index surgical procedure for each participant was categorized within one of fourteen surgical groupings based on Canadian Classification of Health Interventions (CCI) codes applied to hospitalization administrative datasets. We estimated the proportion of people that had AMI or died within 30 days of the index surgical procedure (with 95% confidence intervals [CIs]) following logistic regression, stratified by surgery type. RESULTS Overall, 3398 people had a major surgery (1905 hemodialysis; 590 peritoneal dialysis; 903 non-dialysis). Participants were more likely male (61.0%) with a median age of 61.5 years (IQR 50.0-72.7). Within 30 days of surgery, 272 people (8.0%) had an AMI or died. The probability was lowest following ophthalmologic surgery at 1.9% (95%CI: 0.5, 7.3) and kidney transplantation at 2.1% (95%CI: 1.3, 3.2). Several types of surgery were associated with greater than one in ten risk of AMI or death, including retroperitoneal (10.0% [95%CI: 2.5, 32.4]), intra-abdominal (11.7% [8.7, 15.5]), skin and soft tissue (12.1% [7.4, 19.1]), musculoskeletal (MSK) (12.3% [9.9, 15.5]), vascular (12.6% [10.2, 15.4]), anorectal (14.7% [6.3, 30.8]), and neurosurgical procedures (38.1% [20.3, 59.8]). Urgent or emergent procedures had the highest risk, with 12.1% experiencing AMI or death (95%CI: 10.7, 13.6) compared with 2.6% (1.9, 3.5) following elective surgery. CONCLUSIONS After major non-cardiac surgery, the risk of death or AMI for people with kidney failure varies significantly based on surgery type. This study informs our understanding of surgery type and risk for people with kidney failure. Future research should focus on identifying high risk patients and strategies to reduce these risks.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shannon M Ruzycki
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Marcello Tonelli
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Braden J Manns
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kelly B Zarnke
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Deirdre McCaughey
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Prism Schneider
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - James Wick
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
- Department of Medicine, University of Alberta, 2J2.01 Walter C. Mackenzie Health Sciences Centre, Edmonton, Alberta, T6G 2R7, Canada.
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Ruzycki SM, Harrison TG, Enns E, McKeen J, Helmle K, Cameron A. Quality gaps in screening and monitoring for postoperative hyperglycemia in a Canadian hospital: a retrospective cohort study. BMJ Open Diabetes Res Care 2021; 9:e002445. [PMID: 34711544 PMCID: PMC8557293 DOI: 10.1136/bmjdrc-2021-002445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/18/2021] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Evidence-based preoperative, intraoperative and postoperative glycemic management may reduce poor surgical outcomes. Previous studies suggest that quality gaps in perioperative glycemic management may be common. RESEARCH DESIGN AND METHODS This retrospective cohort study used administrative health and laboratory data from a single center to estimate quality gaps in perioperative glycemic management in patients with and without diabetes between April 2019 and March 2020. We examined the proportion of patients with preoperative hemoglobin A1c (HbA1c) measurement, postoperative point-of-care testing (POCT) for glucose, hyperglycemia, and basal bolus insulin regimens. We compared the median length of stay (LOS) in patients with and without postoperative hyperglycemia, adjusted for age and sex. RESULTS There were 6576 patients in our cohort; 1165 (17.8%) had diabetes. Most patients with diabetes had an HbA1c measured prior to surgery (n=697, 59.8%). Postoperatively, 16.9% of patients with diabetes had no POCT monitoring (n=197) and 65.7% had hyperglycemia (n=636). Only 35.9% of patients who received insulin had a basal bolus insulin regimen (n=229). Patients with diabetes who had postoperative hyperglycemia had a longer median LOS compared with those who did not have postoperative hyperglycemia (8.4 days (95% CI 7.5 to 9.4) and 6.7 days (95% CI 6.3 to 7.1), respectively). In patients without diabetes, median LOS was 7.4 days (95% CI 4.4 to 10.4) for those with hyperglycemia and 5.2 days (95% CI 5.1 to 5.4) for those with in-target glucose. CONCLUSIONS Quality gaps in perioperative glycemic management include measurement of blood glucose after surgery and treatment of postoperative hyperglycemia. These gaps may contribute to longer LOS.
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Affiliation(s)
- Shannon M Ruzycki
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Edwin Enns
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Julie McKeen
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Karmon Helmle
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Anna Cameron
- Department of Obstetrics and Gynecology, Cumming School of Medicine, Calgary, Alberta, Canada
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Harrison TG, Ronksley PE, James MT, Brindle ME, Ruzycki SM, Graham MM, McRae AD, Zarnke KB, McCaughey D, Ball CG, Dixon E, Hemmelgarn BR. The Perioperative Surgical Home, Enhanced Recovery After Surgery and how integration of these models may improve care for medically complex patients. Can J Surg 2021; 64:E381-E390. [PMID: 34296705 PMCID: PMC8410465 DOI: 10.1503/cjs.002020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2020] [Indexed: 12/11/2022] Open
Abstract
Perioperative medicine is changing rapidly, and with this change comes the opportunity to improve upon current models of care delivery and integration within the health care system. Perioperative models of care are structured or conceptual arrangements for surgical patients before, during and after their surgery. Models of care such as the Perioperative Surgical Home and Enhanced Recovery After Surgery pathways are increasingly used to guide the structure of perioperative care delivery with an aim to improve patient outcomes and experience in Canadian settings. In this narrative review, we summarize the origins of these perioperative models of care. They are fundamentally different in scope and level of evidence. Both models have potential benefits and limitations to their broad implementation in our health care system. As currently developed, both models are limited in their application to patients with chronic disease. We discuss how these models of care can be used to develop integrated horizontal and vertical perioperative pathways in a Canadian setting. Such integration is a potential solution that will improve their applicability to patients with medically complex conditions and in times when health care systems are under pressure. We describe this approach using the example of patients with kidney failure receiving dialysis.
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Affiliation(s)
- Tyrone G Harrison
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Paul E Ronksley
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Matthew T James
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Mary E Brindle
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Shannon M Ruzycki
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Michelle M Graham
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Andrew D McRae
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Kelly B Zarnke
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Deirdre McCaughey
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Chad G Ball
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Elijah Dixon
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
| | - Brenda R Hemmelgarn
- From the Department of Medicine, University of Calgary, Calgary, Alta. (Harrison, James, Ruzycki, Zarnke, Hemmelgarn); the Department of Community Health Sciences, University of Calgary, Calgary, Alta. (Harrison, James, Ronksley, Ruzycki, McRae, McCaughey, Dixon); the O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Ronksley, Zarnke, McCaughey, James); the Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alta. (James); the Department of Surgery, University of Calgary, Calgary, Alta. (Brindle, Ball, Dixon); the Department of Emergency Medicine, University of Calgary, Calgary, Alta. (McRae); the Mazankowski Alberta Heart Institute, Edmonton, Alta. (Graham); and the Department of Medicine, University of Alberta, Edmonton, Alta. (Graham, Hemmelgarn)
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Fox DE, Quinn RR, Ronksley PE, Harrison TG, Quan H, Bigam D, Shapiro AMJ, Jeong R, Lam NN. Perioperative Outcomes Following Kidney-Pancreas Transplantation in Alberta, Canada: Research Letter. Can J Kidney Health Dis 2021; 8:20543581211029389. [PMID: 34290878 PMCID: PMC8274095 DOI: 10.1177/20543581211029389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 05/17/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Simultaneous kidney-pancreas transplantation (SPK) has benefits for patients with kidney failure and type I diabetes mellitus, but is associated with greater perioperative risk compared with kidney-alone transplantation. Postoperative care settings for SPK recipients vary across Canada and may have implications for patient outcomes and hospital resource use. Objective: To compare outcomes following SPK transplantation between patients receiving postoperative care in the intensive care unit (ICU) compared with the ward. Design: Retrospective cohort study using administrative health data. Setting: In Alberta, the 2 transplant centers (Calgary and Edmonton) have different protocols for routine postoperative care of SPK recipients. In Edmonton, SPK recipients are routinely transferred to the ICU, whereas in Calgary, SPK recipients are transferred to the ward. Patients: 129 adult SPK recipients (2002-2019). Measurements: Data from the Canadian Institute for Health Information Discharge Abstract Database (CIHI-DAD) were used to identify SPK recipients (procedure codes) and the outcomes of inpatient mortality, length of initial hospital stay (LOS), and the occurrence of 16 different patient safety indicators (PSIs). Methods: We followed SPK recipients from the admission date of their transplant hospitalization until the first of hospital discharge or death. Unadjusted quantile regression was used to determine differences in LOS, and age- and sex-adjusted marginal probabilities were used to determine differences in PSIs between centers. Results: There were no perioperative deaths and no major differences in the demographic characteristics between the centers. The majority of the SPK transplants were performed in Edmonton (n = 82, 64%). All SPK recipients in Edmonton were admitted to the ICU postoperatively, compared with only 11% in Calgary. There was no statistically significant difference in the LOS or probability of a PSI between the 2 centers (LOS for Edmonton vs Calgary:16 vs 13 days, P = .12; PSIs for Edmonton vs Calgary: 60%, 95% confidence interval [CI] = 0.50-0.71 vs 44%, 95% CI = 0.29-0.59, P = .08). Limitations: This study was conducted using administrative data and is limited by variable availability. The small sample size limited precision of estimated differences between type of postoperative care. Conclusions: Following SPK transplantation, we found no difference in inpatient outcomes for recipients who received routine postoperative ICU care compared with ward care. Further research using larger data sets and interventional study designs is needed to better understand the implications of postoperative care settings on patient outcomes and health care resource utilization.
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Affiliation(s)
- Danielle E Fox
- Department of Community Health Sciences, University of Calgary, AB, Canada
| | - Robert R Quinn
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Cumming School of Medicine, Division of Nephrology, University of Calgary, AB, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, University of Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Cumming School of Medicine, Division of Nephrology, University of Calgary, AB, Canada
| | - Hude Quan
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Center for Health Informatics, University of Calgary, AB, Canada
| | - David Bigam
- Department of Surgery, Division of Transplantation, University of Alberta, Edmonton, Canada
| | - A M James Shapiro
- Department of Surgery, Division of Transplantation, University of Alberta, Edmonton, Canada
| | - Rachel Jeong
- Cumming School of Medicine, Division of Nephrology, University of Calgary, AB, Canada
| | - Ngan N Lam
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Cumming School of Medicine, Division of Nephrology, University of Calgary, AB, Canada
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25
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Fletcher S, Joe MB, Hernandez S, Toman I, Harrison TG, Ruzycki SM. The Gender of COVID-19 Experts in Newspaper Articles: a Descriptive Cross-Sectional Study. J Gen Intern Med 2021; 36:1011-1016. [PMID: 33469777 PMCID: PMC7815280 DOI: 10.1007/s11606-020-06579-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/29/2020] [Indexed: 11/08/2022]
Abstract
BACKGROUND Pre-existing gender-based disparities in academia may have worsened during the COVID-19 pandemic. Being cited as an expert source in newspaper articles about COVID-19 may increase an individual's research or leadership profile. In addition, visibility in a newspaper article is an important component of representation in academia. OBJECTIVE To determine whether women were underrepresented as COVID-19 expert sources in print newspapers in the USA. DESIGN We undertook a cross-sectional study of English-language newspaper articles that addressed the COVID-19 pandemic and that were published in the top 10 most widely read newspapers in the USA between April 1 and April 15, 2020. MAIN MEASURES We extracted the names of all people cited as expert sources and categorized the gender of each expert source based on pronoun usage within the article or on a business, university, or organization website. The professional role of each expert was assigned based on their description in the article. KEY RESULTS Of 2297 expert sources identified, 35.9% (95% confidence interval [CI] 33.9-37.8%; n = 824) were women and 63.7% were men (95% CI 61.8-65.7%; n = 1464). This result was similar when considering unique experts in each newspaper and for all included newspapers; of the 1738 unique experts per newspaper, 34.6% were women (95% CI 32.3-36.8%; n = 601), and of the 1593 unique experts in all newspapers, 36.5% were women (95% CI 34.1-38.9%; n = 581). Of articles with multiple experts referenced (n = 374), 102 cited only men experts (27.3%) and 44 cited only women experts (11.8%). Women were underrepresented as experts as Healthcare Workers and Professionals, Non-STEM Experts, Public Health Leaders, and STEM Scientists. There were no differences in the proportion of women experts between newspapers or between different regions of the USA. CONCLUSIONS Altogether, our findings support that men academics outnumber women as COVID-19 experts in newspaper articles.
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Affiliation(s)
- Sarah Fletcher
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Moss Bruton Joe
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Santanna Hernandez
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Inka Toman
- Department of Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shannon M Ruzycki
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. .,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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26
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Farragher JF, Zhang J, Harrison TG, Ravani P, Elliott MJ, Hemmelgarn B. The Association Between Estimated Glomerular Filtration Rate and Hospitalization for Fatigue: A Population-Based Cohort Study. Can J Kidney Health Dis 2021; 8:20543581211001224. [PMID: 33796323 PMCID: PMC7970172 DOI: 10.1177/20543581211001224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/18/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Fatigue is a pervasive symptom among patients with chronic kidney disease
(CKD) that is associated with several adverse outcomes, but the incidence of
hospitalization for fatigue is unknown. Objective: To explore the association between estimated glomerular filtration rate
(eGFR) and incidence of hospitalization for fatigue. Design: Population-based retrospective cohort study using a provincial administrative
dataset. Setting: Alberta, Canada. Patients: People above age 18 who had at least 1 outpatient serum creatinine
measurement taken in Alberta between January 1, 2009, and December 31,
2016. Measurements: The first outpatient serum creatinine was used to estimate GFR.
Hospitalization for fatigue was identified using International
Classification of Diseases, Tenth Revision (ICD-10) code R53.x. Methods: Patients were stratified by CKD category based on their index eGFR. We used
negative binomial regression to determine if there was an increased
incidence of hospitalization for fatigue by declining kidney function
(reference eGFR ≥ 60 mL/min/1.73m2). Estimates were stratified by
age, and adjusted for age, sex, socioeconomic status, and comorbidity. Results: The study cohort consisted of 2 823 270 adults, with a mean age of 46.1 years
and median follow-up duration of 6.0 years; 5 422 hospitalizations for
fatigue occurred over 14 703 914 person-years of follow-up. Adjusted rates
of hospitalization for fatigue increased with decreasing kidney function,
across all age strata. The highest rates were seen in adults on dialysis
(adjusted incident rate ratios 24.47, 6.66, and 3.13 for those aged 18 to
64, 65 to 74, and 75+, respectively, compared with eGFR ≥ 60
mL/min/1.73m2). Limitations: Fatigue hospitalization codes have not been validated; reference group
limited to adults with at least 1 outpatient serum creatinine measurement;
remaining potential for residual confounding. Conclusions: Declining kidney function was associated with increased incidence of
hospitalization for fatigue. Further research into ways to address fatigue
in the CKD population is warranted. Trial Registration: Not applicable (not a clinical trial).
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Affiliation(s)
- Janine F Farragher
- Department of Community Health Sciences, University of Calgary, AB, Canada
| | - Jianguo Zhang
- Department of Community Health Sciences, University of Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Department of Medicine, University of Calgary, AB, Canada
| | - Pietro Ravani
- Department of Community Health Sciences, University of Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Meghan J Elliott
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Department of Medicine, University of Calgary, AB, Canada
| | - Brenda Hemmelgarn
- Department of Community Health Sciences, University of Calgary, AB, Canada.,Department of Medicine, University of Calgary, AB, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, AB, Canada.,Faculty of Medicine & Dentistry, University of Alberta, AB, Canada
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Howarth M, Bhatt M, Benterud E, Wolska A, Minty E, Choi KY, Devrome A, Harrison TG, Baylis B, Dixon E, Datta I, Pannu N, James MT. Development and initial implementation of electronic clinical decision supports for recognition and management of hospital-acquired acute kidney injury. BMC Med Inform Decis Mak 2020; 20:287. [PMID: 33148237 PMCID: PMC7640650 DOI: 10.1186/s12911-020-01303-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 10/22/2020] [Indexed: 12/29/2022] Open
Abstract
Background Acute kidney injury (AKI) is common in hospitalized patients and is associated with poor patient outcomes and high costs of care. The implementation of clinical decision support tools within electronic medical record (EMR) could improve AKI care and outcomes. While clinical decision support tools have the potential to enhance recognition and management of AKI, there is limited description in the literature of how these tools were developed and whether they meet end-user expectations.
Methods We developed and evaluated the content, acceptability, and usability of electronic clinical decision support tools for AKI care. Multi-component tools were developed within a hospital EMR (Sunrise Clinical Manager™, Allscripts Healthcare Solutions Inc.) currently deployed in Calgary, Alberta, and included: AKI stage alerts, AKI adverse medication warnings, AKI clinical summary dashboard, and an AKI order set. The clinical decision support was developed for use by multiple healthcare providers at the time and point of care on general medical and surgical units. Functional and usability testing for the alerts and clinical summary dashboard was conducted via in-person evaluation sessions, interviews, and surveys of care providers. Formal user acceptance testing with clinical end-users, including physicians and nursing staff, was conducted to evaluate the AKI order set.
Results Considerations for appropriate deployment of both non-disruptive and interruptive functions was important to gain acceptability by clinicians. Functional testing and usability surveys for the alerts and clinical summary dashboard indicated that the tools were operating as desired and 74% (17/23) of surveyed healthcare providers reported that these tools were easy to use and could be learned quickly. Over three-quarters of providers (18/23) reported that they would utilize the tools in their practice. Three-quarters of the participants (13/17) in user acceptance testing agreed that recommendations within the order set were useful. Overall, 88% (15/17) believed that the order set would improve the care and management of AKI patients. Conclusions Development and testing of EMR-based decision support tools for AKI with clinicians led to high acceptance by clinical end-users. Subsequent implementation within clinical environments will require end-user education and engagement in system-level initiatives to use the tools to improve care.
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Affiliation(s)
- Megan Howarth
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Meha Bhatt
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Eleanor Benterud
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Anna Wolska
- Alberta Health Services, Calgary, AB, Canada
| | - Evan Minty
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Kyoo-Yoon Choi
- Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Andrea Devrome
- Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Barry Baylis
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Elijah Dixon
- Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Indraneel Datta
- Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Neesh Pannu
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Matthew T James
- Department of Medicine, Cumming School of Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada. .,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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Harrison TG, Ruzycki SM, James MT, Ronksley PE, Zarnke KB, Tonelli M, Manns BJ, McCaughey D, Schneider P, Dixon E, Hartley RL, Owen VS, Ma Z, Hemmelgarn BR. Estimated GFR and Incidence of Major Surgery: A Population-Based Cohort Study. Am J Kidney Dis 2020; 77:365-375.e1. [PMID: 33039431 DOI: 10.1053/j.ajkd.2020.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/13/2020] [Indexed: 11/11/2022]
Abstract
RATIONALE & OBJECTIVE Kidney disease is associated with an increased risk for postoperative morbidity and mortality. However, the incidence of major surgery on a population level is unknown. We aimed to determine the incidence of major surgery by level of kidney function. STUDY DESIGN Retrospective cohort study with entry from January 1, 2008, through December 31, 2009, and outcome surveillance from January 1, 2010, through December 31, 2016. SETTING & PARTICIPANTS Population-based study using administrative health data from Alberta, Canada; adults with an outpatient serum creatinine measurement or receiving maintenance dialysis formed the study cohort. EXPOSURE Participants were categorized into 6 estimated glomerular filtration rate (eGFR) categories: ≥60 (G1-G2), 45 to 59 (G3a), 30 to 44 (G3b), 15 to 29 (G4), and<15mL/min/1.73m2 with (G5D) and without (G5) dialysis. eGFR was examined as a time-varying exposure based on means of measurements within 3-month ascertainment periods throughout the study period. OUTCOME Major surgery defined as surgery requiring admission to the hospital for at least 24 hours. ANALYTICAL APPROACH Incidence rates (IRs) for overall major surgery were estimated using quasi-Poisson regression and adjusted for age, sex, income, location of residence, albuminuria, and Charlson comorbid conditions. Age- and sex-stratified IRs of 13 surgery subtypes were also estimated. RESULTS 1,455,512 cohort participants were followed up for a median of 7.0 (IQR, 5.3) years, during which time 241,989 (16.6%) underwent a major surgery. Age and sex modified the relationship between eGFR and incidence of surgery. Men younger than 65 years receiving maintenance dialysis experienced the highest rates of major surgery, with an adjusted IR of 243.8 (95% CI, 179.8-330.6) per 1,000 person-years. There was a consistent trend of increasing surgery rates at lower eGFRs for most subtypes of surgery. LIMITATIONS Outpatient preoperative serum creatinine measurement was necessary for inclusion and outpatient surgical procedures were not included. CONCLUSIONS People with reduced eGFR have a significantly higher incidence of major surgery compared with those with normal eGFR, and age and sex modify this increased risk. This study informs our understanding of how surgical burden changes with differing levels of kidney function.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Shannon M Ruzycki
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kelly B Zarnke
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Marcello Tonelli
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Braden J Manns
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Deirdre McCaughey
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Prism Schneider
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Elijah Dixon
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Rebecca L Hartley
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Victoria S Owen
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Zhihai Ma
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
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Harrison TG, Skrtic M, Verdin NE, Lanktree MB, Elliott MJ. Improving Sexual Function in People With Chronic Kidney Disease: A Narrative Review of an Unmet Need in Nephrology Research. Can J Kidney Health Dis 2020; 7:2054358120952202. [PMID: 32953127 PMCID: PMC7485155 DOI: 10.1177/2054358120952202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/20/2020] [Indexed: 12/28/2022] Open
Abstract
Purpose of review: Sexual dysfunction occurs commonly in people with chronic kidney
disease (CKD) and has been recognized as a research priority. We
sought to evaluate the current state of the literature
addressing sexual dysfunction in people with CKD and identify
barriers and strategies to improve our management of this
important symptom. Sources of information: OVID Medline and Google Scholar were searched for English,
peer-reviewed studies using keywords and terms related to
“Chronic Kidney Disease,” “sexuality,” and “sexual dysfunction
OR function.” Methods: In this narrative review, we describe definitions of sexual
dysfunction and contributors exacerbated by CKD, barriers to
researching sexual dysfunction in people with CKD, and possible
avenues for future research. Key findings: Sexual dysfunction is common in people with CKD and results from a
combination of kidney disease itself, as well as its associated
physical (ie, comorbidities) and nonphysical factors. Barriers
to the study of sexual dysfunction in CKD include inconsistent
disease definitions, stigma, variable efficacy and safety of
established therapies, and evolving gender roles in sexual
function. Potential avenues for future research to improve the
sexual function in people with CKD may include evaluating the
safety and efficacy of established therapies in people with CKD
using a variety of observational and interventional study
designs, engaging people with CKD and multidisciplinary team
members in research, and using implementation science methods to
translate what is known about sexual function into clinical
practice. Concerted efforts are required to break down barriers
and improve sexual function in people with CKD. Patients have
identified this as an important research priority, and national
networks need to direct efforts to reduce symptom burden. Limitations: This narrative review was limited by a paucity of high-quality
studies examining sexual dysfunction specifically in people with
kidney disease.
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Affiliation(s)
- Tyrone G Harrison
- Section of Nephrology, Department of Medicine, University of Calgary, AB, Canada.,Department of Community Health Sciences, University of Calgary, AB, Canada
| | - Marko Skrtic
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, ON, Canada.,Department of Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Nancy E Verdin
- Patient and Community Engagement Research Unit, O'Brien Institute for Public Health, University of Calgary, AB, Canada
| | - Matthew B Lanktree
- Division of Nephrology, Department of Medicine, St. Joseph's Healthcare Hamilton, McMaster University, Hamilton, ON, Canada
| | - Meghan J Elliott
- Section of Nephrology, Department of Medicine, University of Calgary, AB, Canada.,Department of Community Health Sciences, University of Calgary, AB, Canada
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Harrison TG, Hemmelgarn BR, Farragher JF, O'Rielly C, Donald M, James M, McCaughey D, Ruzycki SM, Zarnke KB, Ronksley PE. Perioperative management for people with chronic kidney disease receiving dialysis undergoing major surgery: a protocol for a scoping review. BMJ Open 2020; 10:e038725. [PMID: 32933963 PMCID: PMC7493104 DOI: 10.1136/bmjopen-2020-038725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION People with chronic kidney disease receiving dialysis (CKD G5D) have an increased risk of poor postoperative outcomes and a high incidence of major surgery. Despite the high burden of these combined risks, there is a paucity of evidence to support tailored perioperative strategies to manage this population. A comprehensive evidence synthesis would inform the management of these patients in the perioperative period and identify knowledge gaps. We describe a protocol for a scoping review of the literature to identify existing perioperative strategies, protocols, pathways and interventions for people with CKD G5D undergoing major surgery. METHODS AND ANALYSIS We will conduct a scoping review in accordance with the Joanna Briggs Institute methodology and report per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. In February 2020, we will complete our search of MEDLINE, EMBASE, CINAHL Plus, Cochrane Database of Systematic Reviews, and Cochrane Controlled Trials Registry for published literature from inception to present. All study types are eligible for inclusion, without language restriction. Studies reporting a perioperative intervention in adult patients with CKD G5D are eligible for inclusion. Studies in prevalent kidney transplant patients or patients with acute kidney injury, and studies that report on surgical approaches without consideration of perioperative management strategies, will be excluded. Reviewers will independently assess abstracts for all identified studies in duplicate, and again at the full-text stage. Following published literature searches, a search of the grey literature will be developed. We will extract and narratively report study, participant and intervention details. This will include a summary table outlining the strategies employed, organised into post hoc developed perioperative domains. ETHICS AND DISSEMINATION Ethical considerations do not apply to this scoping review. Findings will be disseminated through relevant conference presentations and publications.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Division of Nephrology, Department of Medicine, University of Alberta Faculty of Medicine and Dentistry, Edmonton, Alberta, Canada
| | - Janine F Farragher
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Connor O'Rielly
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Maoliosa Donald
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Matthew James
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Deirdre McCaughey
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Shannon M Ruzycki
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Kelly B Zarnke
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
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Affiliation(s)
| | - Brenda R Hemmelgarn
- University of Calgary and University of Alberta, Calgary and Edmonton, Alberta, Canada (B.R.H.)
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Ronksley PE, Wick JP, Elliott MJ, Weaver RG, Hemmelgarn BR, McRae A, James MT, Harrison TG, MacRae JM. Derivation and Internal Validation of a Clinical Risk Prediction Tool for Hyperkalemia-Related Emergency Department Encounters Among Hemodialysis Patients. Can J Kidney Health Dis 2020; 7:2054358120953287. [PMID: 32953128 PMCID: PMC7485157 DOI: 10.1177/2054358120953287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/16/2020] [Indexed: 01/28/2023] Open
Abstract
Background Approximately 10% of emergency department (ED) visits among dialysis patients are for conditions that could potentially be managed in outpatient settings, such as hyperkalemia. Objective Using population-based data, we derived and internally validated a risk score to identify hemodialysis patients at increased risk of hyperkalemia-related ED events. Design Retrospective cohort study. Setting Ten in-center hemodialysis sites in southern Alberta, Canada. Patients All maintenance hemodialysis patients (≥18 years) between March 2009 and March 2017. Measurements Predictors of hyperkalemia-related ED events included patient demographics, comorbidities, health-system use, laboratory measurements, and dialysis information. The outcome of interest (hyperkalemia-related ED events) was defined by International Classification of Diseases (10th Revision; ICD-10) codes and/or serum potassium [K+] ≥6 mmol/L. Methods Bootstrapped logistic regression was used to derive and internally validate a model of important predictors of hyperkalemia-related ED events. A point system was created based on regression coefficients. Model discrimination was assessed by an optimism-adjusted C-statistic and calibration by deciles of risk and calibration slope. Results Of the 1533 maintenance hemodialysis patients in our cohort, 331 (21.6%) presented to the ED with 615 hyperkalemia-related ED events. A 9-point scale for risk of a hyperkalemia-related ED event was created with points assigned to 5 strong predictors based on their regression coefficients: ≥1 laboratory measurement of serum K+ ≥6 mmol/L in the prior 6 months (3 points); ≥1 Hemoglobin A1C [HbA1C] measurement ≥8% in the prior 12 months (1 point); mean ultrafiltration of ≥10 mL/kg/h over the preceding 2 weeks (2 points); ≥25 hours of cumulative time dialyzing over the preceding 2 weeks (1 point); and dialysis vintage of ≥2 years (2 points). Model discrimination (C-statistic: 0.75) and calibration were good. Limitations Measures related to health behaviors, social determinants of health, and residual kidney function were not available for inclusion as potential predictors. Conclusions While this tool requires external validation, it may help identify high-risk patients and allow for preventative strategies to avoid unnecessary ED visits and improve patient quality of life. Trial registration Not applicable-observational study design.
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Affiliation(s)
- Paul E Ronksley
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada
| | - James P Wick
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Meghan J Elliott
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Robert G Weaver
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Brenda R Hemmelgarn
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Andrew McRae
- Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Matthew T James
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Tyrone G Harrison
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Jennifer M MacRae
- Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
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Harrison TG, Ahmed S, Bele S, Cavanagh N, Hemmelgarn BR, McCaughey D. Is My Quality Improvement Initiative Also Research? A Primer on Making This Distinction and the Ethical Considerations for Graduate Trainees. Am J Med Qual 2020; 35:504. [PMID: 32476433 DOI: 10.1177/1062860620929643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Harrison TG, Shukalek CB, Hemmelgarn BR, Zarnke KB, Ronksley PE, Iragorri N, Graham MM, James MT. Association of NT-proBNP and BNP With Future Clinical Outcomes in Patients With ESKD: A Systematic Review and Meta-analysis. Am J Kidney Dis 2020; 76:233-247. [PMID: 32387090 DOI: 10.1053/j.ajkd.2019.12.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 12/30/2019] [Indexed: 12/18/2022]
Abstract
RATIONALE & OBJECTIVE Use of brain natriuretic peptide (BNP) and N-terminal pro-BNP (NT-proBNP) for cardiovascular (CV) risk assessment in patients with end-stage kidney disease (ESKD) remains unclear. We examined the associations between different threshold elevations of these peptide levels and clinical outcomes in patients with ESKD. STUDY DESIGN Systematic review and meta-analysis. SETTING & STUDY POPULATIONS We searched MEDLINE and EMBASE (through September 2019) for observational studies of adults with ESKD (estimated glomerular filtration rate≤15mL/min/1.73m2 or receiving maintenance dialysis). SELECTION CRITERIA FOR STUDIES Studies that reported NT-proBNP or BNP levels and future CV events, CV mortality, or all-cause mortality. DATA EXTRACTION Cohort characteristics and measures of risk associated with study-specified peptide thresholds. ANALYTICAL APPROACH Hazard ratios (HRs) for clinical outcomes associated with different NT-proBNP and BNP ranges were categorized into common thresholds and pooled using random-effects meta-analysis. RESULTS We identified 61 studies for inclusion in our review (19,688 people). 49 provided sufficient detail for inclusion in meta-analysis. Pooled unadjusted HRs for CV mortality were progressively greater for greater thresholds of NT-proBNP, from 1.45 (95% CI, 0.91-2.32) for levels>2,000pg/mL to 5.95 (95% CI, 4.23-8.37) for levels>15,000pg/mL. Risk for all-cause mortality was significantly higher at all NT-proBNP thresholds ranging from> 1,000 to> 20,000pg/mL (HR range, 1.53-4.00). BNP levels>550pg/mL were associated with increased risk for CV mortality (HR, 2.54; 95% CI, 1.49-4.33), while the risks for all-cause mortality were 2.04 (95% CI, 0.82-5.12) at BNP levels>100pg/mL and 2.97 (95% CI, 2.21-3.98) at BNP levels>550pg/mL. Adjusted analyses demonstrated similarly greater risks for CV and all-cause mortality with greater NT-proBNP concentrations. LIMITATIONS Incomplete outcome reporting and risk for outcome reporting bias. Estimation of risk for CV events for specific thresholds of both peptides were limited by poor precision. CONCLUSIONS ESKD-specific NT-proBNP and BNP level thresholds of elevation are associated with increased risk for CV and all-cause mortality. This information may help guide interpretation of NT-proBNP and BNP levels in patients with ESKD.
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Affiliation(s)
- Tyrone G Harrison
- Departments of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Caley B Shukalek
- Departments of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Departments of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kelly B Zarnke
- Departments of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Nicolas Iragorri
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michelle M Graham
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada
| | - Matthew T James
- Departments of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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Farragher JF, Stewart KE, Harrison TG, Engel L, Seaton SE, Hemmelgarn BR. Cognitive interventions for adults with chronic kidney disease: protocol for a scoping review. Syst Rev 2020; 9:58. [PMID: 32183894 PMCID: PMC7076949 DOI: 10.1186/s13643-020-01320-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 03/04/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Cognitive impairment is a common and frequently under-recognized complication of chronic kidney disease (CKD). Although there is extensive literature on cognitive interventions that can ameliorate cognitive impairment or associated negative outcomes in the general literature, the breadth and characteristics of cognitive interventions that have been studied in people with CKD are currently unclear. The objective of this scoping review is to identify and describe the literature on cognitive interventions for adults with CKD, including end-stage kidney disease (ESKD). METHODS A scoping review following Joanna Briggs Institute methodology will be conducted. With assistance from an information specialist, we will search 5 electronic databases (MEDLINE [OVID], EMBASE, PsycINFO, Cochrane Central Register of Controlled Trials, and CINAHL Plus) using search terms that represent the target population (CKD) and concept (cognition), and conduct backward citation searching for additional literature. Eligible sources will be primary research studies (quantitative or qualitative) that investigate any intervention targeting cognition in adults (≥ 18 years) with CKD or ESKD, including those treated with dialysis. We will extract data about characteristics of interventions (e.g., type, underlying theory, design, location, and provider), populations (e.g., stage of CKD, age, sex, and type of cognitive impairment), and studies (e.g., authors, location, design, and reported findings). Article screening and data extraction will be performed by two to three reviewers. Data will be analyzed using descriptive statistics and narrative syntheses to characterize the literature on cognitive interventions for people with CKD. DISCUSSION This study will provide a comprehensive overview of the cognitive interventions that have been studied for people with CKD. It will help identify research gaps within this population (e.g., types of interventions that have yet to be investigated; best practices in cognition research that have not been implemented) and inform the direction of future research in this field.
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Affiliation(s)
- Janine F Farragher
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Rm G236, 3330 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
| | | | - Tyrone G Harrison
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Rm G236, 3330 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.,Department of Medicine, University of Calgary, Calgary, Canada
| | - Lisa Engel
- Department of Occupational Therapy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Samantha E Seaton
- Rehabilitation Sciences Institute, University of Toronto, Toronto, Canada
| | - Brenda R Hemmelgarn
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Rm G236, 3330 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.,Department of Medicine, University of Calgary, Calgary, Canada.,O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Canada
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Tam-Tham H, Ravani P, Zhang J, Weaver RG, Quinn RR, James MT, Liu P, Manns BJ, Tonelli M, Ronksley PE, Harrison TG, Thomas C, Davison S, Hemmelgarn BR. Association of Initiation of Dialysis With Hospital Length of Stay and Intensity of Care in Older Adults With Kidney Failure. JAMA Netw Open 2020; 3:e200222. [PMID: 32108896 PMCID: PMC7049084 DOI: 10.1001/jamanetworkopen.2020.0222] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Comparative outcome data examining the association of dialysis initiation with hospital length of stay and intensity of care in older adults with kidney failure are scarce, and prior studies are limited to patients treated by nephrology teams. OBJECTIVE To compare in-hospital days and intensity of care among older adults with kidney failure who were treated vs not treated with maintenance dialysis. DESIGN, SETTING, AND PARTICIPANTS This population-based, retrospective cohort study included adults in Alberta, Canada, 65 years or older with kidney failure, defined by at least 2 consecutive outpatient estimated glomerular filtration rate values of less than 10 mL/min/1.73 m2 spanning a period of at least 90 days from May 15, 2002, to March 31, 2014. Data were analyzed from August 1, 2017, to August 29, 2019. EXPOSURES Time-varying exposure to maintenance dialysis for treatment of kidney failure. MAIN OUTCOMES AND MEASURES The primary outcome was rate of in-hospital days. Secondary outcomes included rates of hospital admissions, intensive care unit admissions, cardiopulmonary resuscitations, inpatient palliative care, and emergency department visits; risk of in-hospital death; and time to admission to long-term care. RESULTS A total of 968 patients (median age, 78.5 [interquartile range, 72.4-84.7] years; 489 men [50.5%]; median follow-up, 2.0 [interquartile range, 0.8-3.9] years) were included in the analysis. Patients who underwent dialysis spent more adjusted in-hospital days per person-year (36.25 [95% CI, 30.72-41.77] vs 14.65 [95% CI, 12.28-17.02]; incidence rate ratio [IRR], 2.47 [95% CI, 1.99-3.08]). However, the dialysis group did not have a higher rate of hospital admissions (1.18 [95% CI 1.07-1.29] vs 1.32 [95% CI 1.17-1.48] per year; IRR, 0.89 [95% CI, 0.77-1.03]). Patients in the dialysis group had a higher rate of intensive care unit admissions per 1000 hospitalizations (98.37 [95% CI, 81.09-115.65] vs 54.51 [95% CI, 37.76-71.26]; IRR, 1.80 [95% CI, 1.28-2.54]) and lower rates of inpatient palliative care per 1000 in-hospital days (3.92 [95% CI, 3.13-4.72] vs 8.60 [95% CI, 6.3-11.0]; IRR, 0.45 [95% CI, 0.32-0.64]). CONCLUSIONS AND RELEVANCE In this cohort study, compared with nondialysis care, patients who received maintenance dialysis spent more time in the hospital and were more likely to be admitted to intensive care units. This finding suggests trade-offs between longer survival and higher intensity of use of health care services as a function of dialysis initiation. Maintenance dialysis may be a proxy for the type of philosophy of care driving increased in-hospital time and intensive care and less use of palliative care.
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Affiliation(s)
- Helen Tam-Tham
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Pietro Ravani
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Jianguo Zhang
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Robert G. Weaver
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Robert R. Quinn
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T. James
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ping Liu
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Braden J. Manns
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Marcello Tonelli
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul E. Ronksley
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Tyrone G. Harrison
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Chandra Thomas
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sara Davison
- Department of Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Brenda R. Hemmelgarn
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Harrison TG, Tam-Tham H, Hemmelgarn BR, Elliott M, James MT, Ronksley PE, Jun M. Change in Proteinuria or Albuminuria as a Surrogate for Cardiovascular and Other Major Clinical Outcomes: A Systematic Review and Meta-analysis. Can J Cardiol 2018; 35:77-91. [PMID: 30595186 DOI: 10.1016/j.cjca.2018.10.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/04/2018] [Accepted: 10/25/2018] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND There is ongoing controversy around the surrogacy of proteinuria or albuminuria, particularly for cardiovascular (CV) outcomes, which remain the leading cause of morbidity and mortality among patients with chronic kidney disease. We performed a systematic review and meta-analysis of the literature to assess the surrogacy of changing proteinuria or albuminuria for CV events, end-stage renal disease (ESRD), and all-cause mortality. METHODS CENTRAL, EMBASE, and MEDLINE were searched (from inception to October 2017). All randomized controlled trials in adults that reported change in proteinuria or albuminuria and ≥ 10 CV, ESRD, or all-cause mortality events were included. We calculated treatment effect ratios (TERs), defined as the ratio of the treatment effect on a clinical outcome and the effect on the change in the surrogate outcome. TERs close to 1 indicate greater agreement between the clinical outcome and changing proteinuria or albuminuria. RESULTS Thirty-six trials were included in the meta-analysis. We observed inconsistent treatment effects for proteinuria and CV events (20 trials; TER 1.11 [95% confidence interval (CI), 1.01-1.22]) with moderate heterogeneity (I2 = 51%, P = 0.005). Treatment effects on proteinuria or albuminuria were also inconsistent with the effects on all-cause mortality (21 trials; TER 1.17 [95% CI, 1.07-1.28]; I2 = 35%, P for heterogeneity = 0.06), although they were similar with the effects on ESRD (23 trials; TER 0.99 [95% CI, 0.88-1.13]; I2 = 9%, P for heterogeneity = 0.337). CONCLUSIONS Change in proteinuria or albuminuria might be a suitable surrogate outcome for ESRD. However, overall treatment effects on these potential surrogates are inconsistent and overestimate the treatment effects on CV events and all-cause mortality.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Helen Tam-Tham
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Meghan Elliott
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Ronksley
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Min Jun
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; The George Institute for Global Health, University of New South Wales, Sydney, Australia.
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Harrison TG, Tam-Tham H, Hemmelgarn BR, James MT, Sinnarajah A, Thomas CM. Identification and Prioritization of Quality Indicators for Conservative Kidney Management. Am J Kidney Dis 2018; 73:174-183. [PMID: 30482578 DOI: 10.1053/j.ajkd.2018.08.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/29/2018] [Indexed: 01/28/2023]
Abstract
RATIONALE & OBJECTIVE Conservative kidney management is holistic patient-centered care for patients with kidney failure that focuses on delaying the progression of kidney disease and symptom management, without the provision of renal replacement therapy. Currently there is no consensus as to what constitutes high-quality conservative kidney management. We aimed to develop a set of quality indicators for the conservative management of kidney failure. STUDY DESIGN Nominal group technique and Delphi survey process. SETTING & PARTICIPANTS 16 patients and caregivers from Calgary, Canada, participated in 2 nominal group meetings. 91 multidisciplinary health care professionals from 10 countries took part in a Delphi process. ANALYTICAL APPROACH Nominal group technique study of patients and caregivers was used to identify and prioritize a list of quality indicators. A 4-round Delphi process with health care professionals was used to rate the quality indicators until consensus was reached (defined as a mean rating on the Likert scale ≥7.0 and percent agreement >75%). Quality indicators that met criteria for consensus inclusion in the Delphi survey were ranked, and comparisons were made with nominal group priorities. RESULTS 99 quality indicators met consensus criteria for inclusion. The most highly rated quality indicator in the Delphi process was the "percentage of patients that die in the place they desire." There was significant discordance between priorities of the nominal groups with that of the Delphi survey, with only 1 quality indicator being shared on each groups' top 10 list of quality indicators. LIMITATIONS Participants were largely from high-income English-speaking countries, and most already had structured conservative kidney management programs in place, all potentially limiting generalizability. CONCLUSIONS Quality of conservative kidney management care is important to patients, caregivers, and health care professionals. However, discordant quality indicator priorities between groups suggested that care providers delivering conservative kidney management may not prioritize what is most important to those receiving this care. Conservative kidney management programs and health care providers can improve the applicability of this consensus-based quality indicator list to their program by further developing and evaluating it for use in their program.
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Affiliation(s)
- Tyrone G Harrison
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Helen Tam-Tham
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Matthew T James
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Aynharan Sinnarajah
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Department of Family Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Chandra M Thomas
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
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Harrison TG, Wick J, Ahmed SB, Jun M, Manns BJ, Quinn RR, Tonelli M, Hemmelgarn BR. Patients with chronic kidney disease and their intent to use electronic personal health records. Can J Kidney Health Dis 2015; 2:23. [PMID: 26075082 PMCID: PMC4465011 DOI: 10.1186/s40697-015-0058-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 05/13/2015] [Indexed: 11/23/2022] Open
Abstract
Background Electronic personal health records (ePHRs) provide patients with access to their personal health information, aiming to inform them about their health, enhance self-management, and improve outcomes. Although they have been associated with improved health outcomes in several chronic diseases, the potential impact of ePHR use in chronic kidney disease (CKD) is unknown. Objectives We sought to understand perceptions of CKD patients about ePHRs, and describe characteristics associated with their expressed intent to use an ePHR. Design Self-administered paper based survey. Setting The study was conducted in Calgary, Alberta, Canada at a multidisciplinary CKD clinic from November 2013 to January 2014. Participants Patients with non-dialysis-dependent CKD. Measurements Demographics, perceived benefits, and drawbacks of ePHRs were obtained. A univariate analysis was used to assess for an association with the expressed intention to use an ePHR. Methods A patient survey was used to determine perceptions of ePHRs, and to identify factors that were associated with intention to use an ePHR. Results Overall 63 patients with CKD (76.2 % male, 55.6 % ≥65 years old) completed the survey. The majority (69.8 %) expressed their intent to use an ePHR. CKD patients over the age of 65 were less likely to intend to use an ePHR as compared to those aged <65 years (OR 0.22, 95 % CI: [0.06, 0.78]). Those with post-secondary education (OR 3.31, 95 % CI: [1.06, 10.41]) and Internet access (OR 5.70, 95 % CI: [1.64, 19.81]) were more likely to express their intent to use an ePHR. Perceived benefits of ePHR use included greater involvement in their own care (50.0 % indicated this), better access to lab results (75.8 %), and access to health information (56.5 %). Although 41.9 % reported concerns about privacy of health information, there was no association between these concerns and the intent to use an ePHR. Limitations Our results are limited by small study size and single centre location. Conclusions We found that patients with CKD expressed their intention to use ePHRs, and perceive benefits such as personal involvement in their health care and better access to lab results. Studies of CKD patients using ePHRs are needed to determine whether ePHR use improves patient outcomes.
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Affiliation(s)
| | - James Wick
- Department of Community Health Sciences, University of Calgary, 3280 Hospital Drive NW, Calgary, T2N 4Z6 AB Canada
| | - Sofia B Ahmed
- Department of Medicine, University of Calgary, Calgary, AB Canada
| | - Min Jun
- Department of Medicine, University of Calgary, Calgary, AB Canada
| | - Braden J Manns
- Department of Medicine, University of Calgary, Calgary, AB Canada ; Department of Community Health Sciences, University of Calgary, 3280 Hospital Drive NW, Calgary, T2N 4Z6 AB Canada
| | - Robert R Quinn
- Department of Medicine, University of Calgary, Calgary, AB Canada ; Department of Community Health Sciences, University of Calgary, 3280 Hospital Drive NW, Calgary, T2N 4Z6 AB Canada
| | - Marcello Tonelli
- Department of Medicine, University of Calgary, Calgary, AB Canada
| | - Brenda R Hemmelgarn
- Department of Medicine, University of Calgary, Calgary, AB Canada ; Department of Community Health Sciences, University of Calgary, 3280 Hospital Drive NW, Calgary, T2N 4Z6 AB Canada
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Mentasti M, Underwood A, Lück C, Kozak-Muiznieks NA, Harrison TG, Fry NK. Extension of the Legionella pneumophila sequence-based typing scheme to include strains carrying a variant of the N-acylneuraminate cytidylyltransferase gene. Clin Microbiol Infect 2013; 20:O435-41. [PMID: 24245827 DOI: 10.1111/1469-0691.12459] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 11/12/2013] [Accepted: 11/12/2013] [Indexed: 11/27/2022]
Abstract
Sequence-based typing (SBT) combined with monoclonal antibody subgrouping of Legionella pneumophila isolates is at present considered to be the reference standard during epidemiological investigation of Legionnaires' disease outbreaks. In some isolates of L. pneumophila, the seventh allele of the standard SBT scheme, neuA, is not amplified, because a homologue that is refractory to amplification with the standard neuA primers is present. Consequently, a complete seven-allele profile, and hence a sequence type, cannot be obtained. Subsequently, primers were designed to amplify both neuA and the homologue, but these yielded suboptimal sequencing results. In this study, novel primers specific for the neuA homologue were designed and internationally validated by members of the ESCMID Study Group for Legionella Infections at national and regional Legionella reference laboratories with a modified version of the online L. pneumophila sequence quality tool. To date, the addition of the neuAh target to the SBT protocol has allowed full typing data to be obtained for 108 isolates of 11 different serogroups, namely 1, 2, 3, 4, 5, 6, 7, 8, 10, 13, and 14, which could not previously be typed with the standard SBT neuA primers. Further studies are necessary to determine why it is still not possible to obtain either a neuA or a neuAh allele from three serogroup 11 isolates.
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Affiliation(s)
- M Mentasti
- Respiratory and Vaccine Preventable Bacteria Reference Unit, London, UK
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Coetzee N, Duggal H, Hawker J, Ibbotson S, Harrison TG, Phin N, Laza-Stanca V, Johnston R, Iqbal Z, Rehman Y, Knapper E, Robinson S, Aigbogun N. An outbreak of Legionnaires' disease associated with a display spa pool in retail premises, Stoke-on-Trent, United Kingdom, July 2012. Euro Surveill 2012; 17:20271. [PMID: 22995431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
Twenty-one confirmed cases of Legionnaires’ disease (Legionella pneumophila serogroup 1) were identified in the Stoke-on-Trent area of England with onsets since 2 July 2012. Sequence-based typing results are available for nine cases; all are a unique type (ST1268). Initial interviews highlighted a number of possible environmental sources. Inspection of premises of interest revealed an operating spa pool on display, from which the outbreak strain was identified. All cases had visited the retail premise with this spa pool.
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Affiliation(s)
- N Coetzee
- Health Protection Agency, West Midlands North, Stafford, United Kingdom.
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Chalker VJ, Stocki T, Mentasti M, Fleming D, Sadler C, Ellis J, Bermingham A, Harrison TG. Mycoplasma pneumoniae infection in primary care investigated by real-time PCR in England and Wales. Eur J Clin Microbiol Infect Dis 2011; 30:915-21. [PMID: 21311941 DOI: 10.1007/s10096-011-1176-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 01/11/2011] [Indexed: 11/28/2022]
Abstract
Real-time PCR was employed to detect a conserved region of the P1 cytadhesin gene of Mycoplasma pneumoniae in combined nose and throat swabs collected from patients attending GP surgeries during 2005-2009 with symptoms of respiratory tract infection (RTI). Samples were collected as part of an annual winter epidemiological and virological linked study in England and Wales. A total of 3,987 samples were tested, 65 (1.7%, 95%CI 1.3-2.1) had detectable M. pneumoniae DNA. Positive patients were detected of both gender, aged from 9 months to 78 years, who had clinical signs of upper RTI, fever and/or myalgia, an influenza-like illness to lower RTI. Mixed infections were identified in four cases, two with influenza A H1, one with H3 and one with influenza B. Children aged 5-14 years were more likely to have detectable M. pneumoniae in samples than all other age groups (Fishers p = 0.03), attributed to the 2005-2006 season in which 6.0% (12/200, 95%CI 3.4-10.3) of 5-14 year olds had detectable M. pneumoniae in comparison to 2.2% in 2006-2007 (3/141 95%CI 0.5-6.4), 2.2% in 2007-2008 (2/89 95%CI 0.1-8.3) and 0% in 2008-2009 (0/151 95%CI 0-2.9).
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Affiliation(s)
- V J Chalker
- Respiratory and Systemic Infection Laboratory, Health Protection Agency Centre for Infections, 61 Colindale Avenue, London, NW9 5EQ, UK.
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Carr R, Warren R, Towers L, Bartholomew A, Duggal HV, Rehman Y, Harrison TG, Olowokure B. Investigating a cluster of Legionnaires’ cases: Public health implications. Public Health 2010; 124:326-31. [PMID: 20483439 DOI: 10.1016/j.puhe.2010.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 02/04/2010] [Accepted: 03/02/2010] [Indexed: 11/18/2022]
Affiliation(s)
- R Carr
- Health Protection Agency, Shropshire and Staffordshire Health Protection Unit, Shropshire, UK
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Harrison TG, Afshar B, Doshi N, Fry NK, Lee JV. Distribution of Legionella pneumophila serogroups, monoclonal antibody subgroups and DNA sequence types in recent clinical and environmental isolates from England and Wales (2000–2008). Eur J Clin Microbiol Infect Dis 2009; 28:781-91. [PMID: 19156453 DOI: 10.1007/s10096-009-0705-9] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Accepted: 01/11/2009] [Indexed: 11/25/2022]
Affiliation(s)
- T G Harrison
- Respiratory and Systemic Infections Department, HPA Centre for Infections, 61 Colindale Avenue, London, NW9 5HT, UK.
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Abstract
A young Russian man presented with increasing shortness of breath and signs of worsening aortic regurgitation. A diagnosis of infective endocarditis was made before emergency valve replacement. The infective cause was not discovered by routine culture but was suggested by electron microscopy and confirmed by serology and PCR testing.
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Affiliation(s)
- N E Jenkins
- Department of Infectious Diseases and Microbiology, John Radcliffe Hospital, Oxford, Oxon OX39DU, UK.
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Lock K, Millett C, Heathcock R, Joseph CA, Harrison TG, Lee JV, Rao G, Surman-Lee S. Public health and economic costs of investigating a suspected outbreak of Legionnaires' disease. Epidemiol Infect 2008; 136:1306-14. [PMID: 18088448 PMCID: PMC2870734 DOI: 10.1017/s0950268807000076] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2007] [Indexed: 11/07/2022] Open
Abstract
This paper provides one of the first assessments of the burden of both the public health investigation and the economic costs associated with an apparent outbreak of Legionnaires' disease (LD) in South East London. In addition to epidemiological, microbiological and environmental investigations, we collected data on the staff time and resources committed by the 11 main organizations responsible for managing the outbreak. Of the overall estimated costs of 455,856 pounds, only 14% (64,264 pounds) was spent on investigation and control of the outbreak compared with 86% (391,592 pounds) spent on the hospital treatment of the patients. The time and money spent on public health services in this investigation appear to represent good value for money considering the potential costs of a major outbreak, including the high case-fatality rate in LD generally and the high health-care costs. Further research is needed to determine optimum strategies for the cost-effective use of health system resources in investigations of LD. Whether the threshold for investigation of cases should be based on observed incidence rates or the cost-effectiveness of investigations, or both, should be debated further.
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Affiliation(s)
- K Lock
- London School of Hygiene and Tropical Medicine, London, UK.
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Crowcroft NS, Zambon M, Harrison TG, Mok Q, Heath P, Miller E. Respiratory syncytial virus infection in infants admitted to paediatric intensive care units in London, and in their families. Eur J Pediatr 2008; 167:395-9. [PMID: 17541638 DOI: 10.1007/s00431-007-0509-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2006] [Accepted: 04/24/2007] [Indexed: 10/23/2022]
Abstract
We carried out a study in five London paediatric intensive care units (PICUs), with the objectives of describing a cohort of infants with respiratory syncytial virus (RSV) infection, comparing hospital diagnosis with PCR results and investigating the spread of RSV in families. Eligible infants were under 5 months old and admitted betweem November 1998 and October 1999 with respiratory failure, apnoea and/or bradycardia or acute life threatening episodes (ALTE). We diagnosed RSV by PCR analysis of nasopharyngeal aspirate, and in contacts by PCR of pernasal swabs. Of the 137 eligible infants, 66% (91/137) were recruited; of these, 82% (75/91) had RSV, with 47% (35/75) diagnosed by hospital laboratory tests and 93% (70/75) by PCR. The median duration of ventilation was 4.4 days, the length of stay on PICU, 8.6 days, and the length of stay in hospital, 15.9 days. In most families (62%), the parents and siblings developed symptoms of RSV infection at the same time as the infant. When the index infant was a secondary case, primary cases occurred in both older siblings (16 families) and adults (11 families). Silent RSV infection occurred frequently amongst children and adults. RSV is under-diagnosed in PICUs. PCR increases the rate of diagnosis of RSV compared to routine hospital diagnostic methods. Young infants are most often infected at the same time as or before their parents and siblings, indicating that the source may be outside the household; vaccinating family members may not prevent RSV infection in infants.
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Affiliation(s)
- N S Crowcroft
- Immunisation Department, Health Protection Agency, Centre for Infections , London, NW9 5EQ, UK.
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Abstract
Twenty-two red-autofluorescent Legionella strains were identified serologically as either Legionella rubrilucens or L. erythra. A rRNA probe was used for restriction fragment length polymorphism (RFLP) analysis of the strains and the patterns generated were used as an additional method of identifying the strains to species level. In two instances strains which were identified as L. rubrilucens by serology appeared to belong to the species L. erythra by RFLP analysis. This apparent contradiction was resolved by measurements of DNA/DNA homology which confirmed the existence of a second serogroup of L. erythra serologically indistinguishable from L. rubrilucens.
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Affiliation(s)
- N A Saunders
- Division of Microbiological Reagents, Central Public Health Laboratory, London, UK
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Fry NK, Afshar B, Bellamy W, Underwood AP, Ratcliff RM, Harrison TG. Identification of Legionella spp. by 19 European reference laboratories: results of the European Working Group for Legionella Infections External Quality Assessment Scheme using DNA sequencing of the macrophage infectivity potentiator gene and dedicated online tools. Clin Microbiol Infect 2007; 13:1119-24. [PMID: 17725649 DOI: 10.1111/j.1469-0691.2007.01808.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Identification of Legionella spp. can be achieved by DNA sequencing of the macrophage infectivity potentiator (mip) gene. The External Quality Assurance (EQA) scheme described in this report is the first to assess the proficiency of laboratories using this methodology. The results obtained from two EQA distributions sent to European reference laboratories involved in Legionella outbreak control and environmental monitoring are presented. Each distribution contained a panel of ten coded Legionella strains. All strains were from clinical and environmental sources and were considered to be wild-type strains. Participants used dedicated online tools to compare sequence text files against a database of known Legionella spp. The majority of centres (seven of ten, and 11 of 12) correctly identified all strains tested, in the first and second distributions, respectively. Typically, sequence similarity values of 98-100% were obtained when the test strains were compared with sequences contained in the database. In all but one case, lower values indicated a poor quality sequence. The exception was associated with the identification of a putative new species in the first panel. Genotypic identification of Legionella can be achieved by the use of standard protocols, dedicated identification libraries, and online tools. EQA schemes provide an independent measure of performance, and it is recommended that laboratories performing these techniques participate in such schemes, thereby allowing optimisation of and improvements in their performance.
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Affiliation(s)
- N K Fry
- Respiratory and Systemic Infection Laboratory, Health Protection Agency Centre for Infections, London, UK
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Sheppard CL, Salmon JE, Harrison TG, Lyons M, George RC. The clinical and public health value of non-culture methods in the investigation of a cluster of unexplained pneumonia cases. Epidemiol Infect 2007; 136:922-7. [PMID: 17697442 PMCID: PMC2870888 DOI: 10.1017/s0950268807009302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
During 2003, a cluster of initially unexplained pneumonia cases (two fatal) occurred in patients aged <50 years in a British city. Routine culture tests were inconclusive, however, pneumococcal infection was suspected and the putative outbreak was investigated using non-culture methods. Clinical samples from ten patients were tested by pneumococcal polymerase chain reaction (PCR) and multi-locus sequence typing (MLST), or Binax NOW pneumococcal urine antigen test and serotype-specific enzyme-linked immunosorbent assay (ELISA). Lung samples from the deceased patients were PCR positive and yielded different MLST types. Two patients in one family group were serotype 1 pneumococcal antigen positive. Two further patients were serotype 1 antigen positive, and one serotype 4 positive. Two antigen-positive cases were also serum PCR positive. Non-culture methods confirmed the disease aetiology in six cases. Serotype and MLST results showed no single outbreak, but a family cluster of cases in a high background of pneumococcal pneumonia, providing important epidemiological data that would not otherwise have been available.
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Affiliation(s)
- C L Sheppard
- Respiratory and Systemic Infection Laboratory, Health Protection Agency, Centre for Infections, London, UK.
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