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Bangash H, Saadatagah S, Naderian M, Hamed ME, Alhalabi L, Sherafati A, Sutton J, Elsekaily O, Mir A, Gundelach JH, Gibbons D, Johnsen P, Wood-Wentz CM, Smith CY, Caraballo PJ, Bailey KR, Kullo IJ. Effect of clinical decision support for severe hypercholesterolemia on low-density lipoprotein cholesterol levels. NPJ Digit Med 2024; 7:73. [PMID: 38499608 PMCID: PMC10948900 DOI: 10.1038/s41746-024-01069-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/29/2024] [Indexed: 03/20/2024] Open
Abstract
Severe hypercholesterolemia/possible familial hypercholesterolemia (FH) is relatively common but underdiagnosed and undertreated. We investigated whether implementing clinical decision support (CDS) was associated with lower low-density lipoprotein cholesterol (LDL-C) in patients with severe hypercholesterolemia/possible FH (LDL-C ≥ 190 mg/dL). As part of a pre-post implementation study, a CDS alert was deployed in the electronic health record (EHR) in a large health system comprising 3 main sites, 16 hospitals and 53 clinics. Data were collected for 3 months before ('silent mode') and after ('active mode') its implementation. Clinicians were only able to view the alert in the EHR during active mode. We matched individuals 1:1 in both modes, based on age, sex, and baseline lipid lowering therapy (LLT). The primary outcome was difference in LDL-C between the two groups and the secondary outcome was initiation/intensification of LLT after alert trigger. We identified 800 matched patients in each mode (mean ± SD age 56.1 ± 11.8 y vs. 55.9 ± 11.8 y; 36.0% male in both groups; mean ± SD initial LDL-C 211.3 ± 27.4 mg/dL vs. 209.8 ± 23.9 mg/dL; 11.2% on LLT at baseline in each group). LDL-C levels were 6.6 mg/dL lower (95% CI, -10.7 to -2.5; P = 0.002) in active vs. silent mode. The odds of high-intensity statin use (OR, 1.78; 95% CI, 1.41-2.23; P < 0.001) and LLT initiation/intensification (OR, 1.30, 95% CI, 1.06-1.58, P = 0.01) were higher in active vs. silent mode. Implementation of a CDS was associated with lowering of LDL-C levels in patients with severe hypercholesterolemia/possible FH, likely due to higher rates of clinician led LLT initiation/intensification.
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Affiliation(s)
- Hana Bangash
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | | | | | - Marwan E Hamed
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Lubna Alhalabi
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Alborz Sherafati
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Joseph Sutton
- Department of Information Technology, Mayo Clinic, Rochester, MN, USA
| | - Omar Elsekaily
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Ali Mir
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Daniel Gibbons
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Paul Johnsen
- Department of Information Technology, Mayo Clinic, Rochester, MN, USA
| | | | - Carin Y Smith
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Pedro J Caraballo
- Department of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Kent R Bailey
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Iftikhar J Kullo
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA.
- Gonda Vascular Center, Mayo Clinic, Rochester, MN, USA.
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Medina-Inojosa JR, Somers VK, Garcia M, Thomas RJ, Allison T, Chaudry R, Wood-Wentz CM, Bailey KR, Mulvagh SL, Lopez-Jimenez F. Performance of the ACC/AHA Pooled Cohort Cardiovascular Risk Equations in Clinical Practice. J Am Coll Cardiol 2023; 82:1499-1508. [PMID: 37793746 DOI: 10.1016/j.jacc.2023.07.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/11/2023] [Accepted: 07/19/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND The performance of the American College of Cardiology/American Heart Association pooled cohort equation (PCE) for atherosclerotic cardiovascular disease (ASCVD) in real-world clinical practice has not been evaluated extensively. OBJECTIVES The goal of this study was to test the performance of PCE to predict ASCVD risk in the community, and determine if including individuals with values outside the PCE range (ie, age, blood pressure, cholesterol) or statin therapy initiation over follow-up would significantly affect PCE predictive capabilities. METHODS The PCE was validated in a community-based cohort of consecutive patients who sought primary care in Olmsted County, Minnesota, between 1997 and 2000, followed-up through 2016. Inclusion criteria were similar to those of PCE derivation. Patient information was ascertained by using the record linkage system of the Rochester Epidemiology Project. ASCVD events (nonfatal and fatal myocardial infarction and ischemic stroke) were validated in duplicate. Calculated and observed ASCVD risk and c-statistics were compared across predefined groups. RESULTS This study included 30,042 adults, with a mean age of 48.5 ± 12.2 years; 46% were male. Median follow-up was 16.5 years, truncated at 10 years for this analysis. Mean ASCVD risk was 5.6% ± 8.73%. There were 1,555 ASCVD events (5.2%). The PCE revealed good performance overall (c-statistic 0.78) and in sex and race subgroups; it was highest among non-White female subjects (c-statistic 0.81) and lowest in White male subjects (c-statistic 0.77). Out-of-range values and initiation of statin medication did not affect model performance. CONCLUSIONS The PCE performed well in a community cohort representing real-world clinical practice. Values outside PCE ranges and initiation of statin medication did not affect performance. These results have implications for the applicability of current strategies for the prevention of ASCVD.
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Affiliation(s)
- Jose R Medina-Inojosa
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA; Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Virend K Somers
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Mariana Garcia
- Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Randal J Thomas
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Thomas Allison
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Rajeev Chaudry
- Department of Medicine and Division of Preventive Cardiology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Christina M Wood-Wentz
- Department of Medicine and Division of Preventive Cardiology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Kent R Bailey
- Department of Medicine and Division of Preventive Cardiology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Sharon L Mulvagh
- Department of Cardiovascular Medicine, Mayo Clinic Rochester, Rochester, Minnesota, USA; Department of Medicine, Division of Cardiology, Dalhousie University, Halifax, Nova Scotia, Canada
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Abstract
Anderson, Paul J., Christina M. Wood-Wentz, Kent R. Bailey, and Bruce D. Johnson. Objective versus self-reported sleep quality at high altitude. High Alt Med Biol. 24:144-148, 2023. Background: Previous studies have found little relationship between polysomnography and a diagnosis of acute mountain sickness (AMS) using the Lake Louise Symptom Questionnaire (LLSQ). The correlation between sleep question responses on the LLSQ and polysomnography results has not been explored. We compared LLSQ sleep responses and polysomnography data from our previous study of workers rapidly transported to the South Pole. Methods: Sixty-three subjects completed a 3-hour flight from sea level to the South Pole (3200 m, 9800 ft). Participants completed limited overnight polysomnography on their first night and completed LLSQ upon awakening. We compared polysomnography results at the South Pole with sleep question responses on the LLSQ to assess their degree of correspondence. Results: Twenty-two (30%) individuals reported no sleep problems whereas 20 (32%) reported some problems and 20 (33%) individuals reported poor sleep and 1 reported no sleep (n = 1). Median sleep efficiency was (94%) among response groups and mean overnight oxygen saturation was 81%. Median apnea hypopnea index (AHI; events/hour) was 10.2 in those who reported no problems sleeping, 5.1 in those reporting some problems sleeping, and 13.7 in those who reported poor sleep. These differences were not statistically significant. Conclusion: Self-reported sleep quality varied but there were no associated significant differences in sleep efficiency, overnight oxygen saturation, nor AHI. Studies that explore the role of objective sleep quality in the development of AMS should remove the sleep question on the LLSQ from AMS scoring algorithms.
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Affiliation(s)
- Paul J Anderson
- Human Integrative and Environmental Physiology Laboratory, Mayo Clinic, Rochester, Minnesota
| | - Christina M Wood-Wentz
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Kent R Bailey
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Bruce D Johnson
- Human Integrative and Environmental Physiology Laboratory, Mayo Clinic, Rochester, Minnesota
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Saadatagah S, Alhalabi L, Farwati M, Zordok M, Bhat A, Smith CY, Wood-Wentz CM, Bailey KR, Kullo IJ. The burden of severe hypercholesterolemia and familial hypercholesterolemia in a population-based setting in the US. Am J Prev Cardiol 2022; 12:100393. [PMID: 36204653 PMCID: PMC9530843 DOI: 10.1016/j.ajpc.2022.100393] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/08/2022] [Accepted: 09/24/2022] [Indexed: 12/21/2022] Open
Abstract
Background Contemporary prevalence, awareness, and control of severe hypercholesterolemia (SH) and familial hypercholesterolemia (FH) and the associated atherosclerotic cardiovascular disease risk in the US are unknown. Method Using electronic health records, we assessed the burden of SH and FH in Olmsted County, Minnesota, US, between 2004 and 2015. We defined SH as low-density lipoprotein cholesterol (LDL-C) level ≥190 mg/dl without secondary causes of hypercholesterolemia and FH as a Dutch Lipid Clinic Network score ≥6. Controls were age- and sex-matched individuals with LDL-C level <190 mg/dl. Results The age- and sex-adjusted point and period prevalence (age-recursive method) of SH was 4.44% and 8.95%, respectively; 1 in 21 had FH (∼1:233 adults), and 46.2% had a recorded diagnosis. Guideline recommended targets (LDL-C <100 mg/dl and <70 mg/dl in the primary and secondary prevention settings, respectively) were achieved in 33.1% and 21.2% of SH cases, with less women overall achieving the target than men (18.6% vs. 23.7%, p=0.022). After adjustment for conventional risk factors, the hazard ratio for incident coronary heart disease (CHD) in those with SH was 1.21 (1.05-1.39; p=0.010), in those with SH and a family history of CHD was 2.16 (1.57-2.96; p<0.001) and in those with FH was 4.61 (2.66-7.97; p<0.001). The association of SH with CHD was modified by age (p-interaction = 0.015), such that the risk was greater at younger ages. Conclusions SH was prevalent and an independent risk factor for incident CHD. Awareness and control were low, highlighting a treatment gap (more prominent in women) that needs to be addressed.
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Affiliation(s)
| | - Lubna Alhalabi
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Medhat Farwati
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Magdi Zordok
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Ashwini Bhat
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Carin Y. Smith
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN, USA
| | | | - Kent R. Bailey
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN, USA
| | - Iftikhar J. Kullo
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
- Gonda Vascular Center, Mayo Clinic, Rochester, MN, USA
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Miller AA, Bangash H, Smith CY, Wood-Wentz CM, Bailey KR, Kullo IJ. A pragmatic clinical trial of cascade testing for familial hypercholesterolemia. Genet Med 2022; 24:2535-2543. [PMID: 36173399 PMCID: PMC9944844 DOI: 10.1016/j.gim.2022.08.026] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 01/29/2023] Open
Abstract
PURPOSE We compared new cases detected per index case in familial hypercholesterolemia (FH) families with or without an identifiable monogenic etiology. METHODS We enrolled 52 FH probands with a pathogenic variant (FHg+) in LDLR, APOB, or PCSK9 and 73 probands without such a variant (FHg-). After direct contact by the study team, family members (FMs) of FHg+ probands could opt-in for genetic testing and FMs of FHg- probands were asked to provide a lipid profile. New cases were defined as presence of a pathogenic variant in FHg+ families and as low-density lipoprotein cholesterol ≥155 mg/dL in FHg- families. RESULTS Of 71 FHg+ probands seen by a genetic counselor, 52 consented and identified 253 FMs (111 consented and were tested, yielding 48 new cases). Of 101 FHg- probands who received counseling, 73 consented and identified 295 FMs (63 consented and were tested, yielding 17 new cases). New case detection per index case was significantly greater in FHg+ than in FHg- families (0.92 vs 0.23), a result of higher cascade testing uptake (43.9 vs 21.4%) and yield (43.2 vs 27.0%) in the former. CONCLUSION New case detection rate was significantly higher in FH families with a monogenic etiology than in those without such an etiology owing to greater uptake and yield of cascade testing.
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Affiliation(s)
| | - Hana Bangash
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Carin Y Smith
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | | | - Kent R Bailey
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Iftikhar J Kullo
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
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Abstract
IMPORTANCE US rural vs nonrural populations have striking disparities in diabetes care. Whether rurality contributes to disparities in diabetes mortality is unknown. OBJECTIVE To examine rates and trends in diabetes mortality based on county urbanization. DESIGN, SETTING, AND PARTICIPANTS In this observational, cross-sectional study, the US Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research database was searched from January 1, 1999, to December 31, 2018, for diabetes as a multiple cause and the underlying cause of death among residents aged 25 years or older in US counties. County urbanization was categorized as metro, medium-small, and rural. Weighted multiple linear regression models and jackknife resampling, with a 3-segment time component, were used. The models included exposures with up to 3-way interactions and were age standardized to the 2009-2010 population. The analyses were conducted from July 1, 2020, to February 1, 2022. EXPOSURES County urbanization (metro, medium-small, or rural), gender (men or women), age group (25-54, 55-74, or ≥75 years), and region (Midwest, Northeast, South, or West). MAIN OUTCOMES AND MEASURES Annual diabetes mortality rate per 100 000 people. RESULTS From 1999-2018, based on 4 022 238 309 person-years, diabetes was a multiple cause of death for 4 735 849 adults aged 25 years or older. As a multiple cause, diabetes mortality rates in 2017-2018 vs 1999-2000 were highest and unchanged in rural counties (157.2 [95% CI, 150.7-163.7] vs 154.1 [95% CI, 148.2-160.1]; P = .49) but lower in medium-small counties (123.6 [95% CI, 119.6-127.6] vs 133.6 [95% CI, 128.4-138.8]; P = .003) and urban counties (92.9 [95% CI, 90.5-95.3] vs 109.7 [95% CI, 105.2-114.1]; P < .001). In 2017-2018 vs 1999-2000, mortality rates were higher in rural men (+18.2; 95% CI, 14.3-22.1) but lower in rural women (-14.0; 95% CI, -17.7 to -10.3) (P < .001 for both). In the 25- to 54-year age group, mortality rates in 2017-2018 vs 1999-2000 showed a greater increase in rural counties (+9.4; 95% CI, 8.6-10.2) compared with medium-small counties (+4.5; 95% CI, 4.0-5.0) and metro counties (+0.9; 95% CI, 0.4-1.4) (P < .001 for all). Of all regions and urbanization levels, the mortality rate in 2017-2018 vs 1999-2000 was higher only in the rural South (+13.8; 95% CI, 7.6-20.0; P < .001). CONCLUSIONS AND RELEVANCE In this cross-sectional study, US rural counties had the highest overall diabetes mortality rate. The determinants of persistent rural disparities, in particular for rural men and for adults in the rural South, require investigation.
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Affiliation(s)
- Sagar B. Dugani
- Division of Hospital Internal Medicine, Mayo Clinic, Rochester, Minnesota
- Division of Health Care Delivery Research, Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota
- Knowledge and Evaluation Research Unit, Mayo Clinic, Rochester, Minnesota
| | | | - Michelle M. Mielke
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
- Now with Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Kent R. Bailey
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | - Adrian Vella
- Division of Endocrinology, Mayo Clinic, Rochester, Minnesota
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Abbott EF, Laack TA, Licatino LK, Wood-Wentz CM, Warner PA, Torsher LC, Newman JS, Rieck KM. Comparison of dyad versus individual simulation-based training on stress, anxiety, cognitive load, and performance: a randomized controlled trial. BMC Med Educ 2021; 21:367. [PMID: 34225722 PMCID: PMC8256490 DOI: 10.1186/s12909-021-02786-6] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/03/2021] [Indexed: 06/01/2023]
Abstract
BACKGROUND Dyad learning has been shown to be an effective tool for teaching procedural skills, but little is known about how dyad learning may impact the stress, anxiety, and cognitive load that a student experiences when learning in this manner. In this pilot study, we investigate the relationship between dyad training on stress, anxiety, cognitive load, and performance in a simulated bradycardia scenario. METHODS Forty-one fourth-year medical school trainees were randomized as dyads (n = 24) or individuals (n = 17) for an education session on day 1. Reassessment occurred on day 4 and was completed as individuals for all trainees. Primary outcomes were cognitive load (Paas scale), stress (Cognitive Appraisal Ratio), and anxiety levels (abbreviated State-Trait Anxiety Inventory). Secondary outcomes were time-based performance metrics. RESULTS On day 1 we observed significant differences for change in anxiety and stress measured before and after the training scenario between groups. Individuals compared to dyads had larger mean increases in anxiety, (19.6 versus 7.6 on 80-point scale, p = 0.02) and stress ratio (1.8 versus 0.9, p = 0.045). On the day 4 post-intervention assessment, no significant differences were observed between groups. Secondary outcomes were significant for shorter time to diagnosis of bradycardia (p = 0.01) and time to initiation of pacing (p = 0.04) in the dyad group on day 1. On day 4, only time to recognizing the indication for pacing was significantly shorter for individual training (hazard ratio [HR] = 2.26, p = 0.02). CONCLUSIONS Dyad training results in lower stress and anxiety levels with similar performance compared to individual training.
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Affiliation(s)
- Eduardo F. Abbott
- Multidisciplinary Simulation Center, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
- Department of Internal Medicine, Escuela de Medicina, Pontificia Universidad Catolica de Chile, Diagonal Paraguay 362, 5th Floor, 8330077 Santiago, Chile
| | - Torrey A. Laack
- Multidisciplinary Simulation Center, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
- Department of Emergency Medicine, Mayo Clinic, Rochester, MN USA
| | - Lauren K. Licatino
- Department of Anesthesia and Perioperative Medicine, 200 First Street SW, Rochester, MN 55905 USA
| | - Christina M. Wood-Wentz
- Division of Clinical Trials and Biostatistics, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
| | - Paul A. Warner
- Department of Anesthesia and Perioperative Medicine, 200 First Street SW, Rochester, MN 55905 USA
| | - Laurence C. Torsher
- Department of Anesthesia and Perioperative Medicine, 200 First Street SW, Rochester, MN 55905 USA
| | - James S. Newman
- Division of Hospital Internal Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
| | - Katie M. Rieck
- Division of Hospital Internal Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
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Day PL, Nelson EJ, Bluhm AM, Wood-Wentz CM, Jannetto PJ. Discovery of an arsenic and mercury co-elevation in the Midwest United States using reference laboratory data. Environ Pollut 2019; 254:113049. [PMID: 31454582 DOI: 10.1016/j.envpol.2019.113049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/24/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
This study aimed to determine if there is a co-elevation of human blood arsenic and mercury levels in the Midwestern population of the United States (U.S.) and to determine any geographical patterns and variation of arsenic and mercury that may exist in Michigan. 58,800 blood specimens along with associated demographic/geographic data from the contiguous United States were reviewed. Univariate and multivariable logistic regression were used to analyze demographic/geographic variables associated with elevated arsenic concentrations. Furthermore, blood data from patients in Michigan were aggregated to the ZIP code tabulation area (ZCTA) in order to assess geographic variation using spatial regression models. SaTScan software was also used to analyze potential clustering of arsenic and mercury across Michigan ZCTAs. Within the contiguous United States, elevated mercury blood concentrations, older age, female sex, and coastal status were all associated with elevated arsenic blood concentrations (elevated mercury odds ratio (OR) 3.18 (3.04-3.33); female sex OR 1.06 (1.02-1.11); +10 yr age OR 1.12 (1.11-1.14); coastal state OR 1.33 (1.27-1.40). Within the state of Michigan, as with the continuous U.S., elevated mercury blood concentrations and older age were associated with elevated arsenic blood concentrations (elevated mercury OR 2.75 (2.38-3.18); female sex OR 1.06 (0.95-1.19); +10 yr age OR 1.10 (1.06-1.13). Using spatial regression, it was determined that within Michigan, economic inequality (measured via the Gini coefficient) was also associated with elevated concentrations of mercury in the blood. Clinical reference laboratory data, in conjunction with spatial analysis methods, may enhance our understanding of how elemental exposure affects human health and should be considered for studying how environmental contaminants, socioeconomics and geography affect the health of populations.
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Affiliation(s)
- Patrick L Day
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Erik J Nelson
- Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
| | - Amy M Bluhm
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | | | - Paul J Jannetto
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
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Klee GG, Ichihara K, Ozarda Y, Baumann NA, Straseski J, Bryant SC, Wood-Wentz CM. Reference Intervals: Comparison of Calculation Methods and Evaluation of Procedures for Merging Reference Measurements From Two US Medical Centers. Am J Clin Pathol 2018; 150:545-554. [PMID: 30169553 DOI: 10.1093/ajcp/aqy082] [Citation(s) in RCA: 9] [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] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To analyze consistency of reference limits and widths of reference intervals (RIs) calculated by six procedures and evaluate a protocol for merging intrainstitutional reference data. METHODS The differences between reference limits were compared with "optimal" bias goals. Also, widths of the RIs were compared. RIs were calculated using Mayo-SAS quantile, EP Evaluator, and four International Federation of Clinical Chemistry and Laboratory Medicine methods: parametric and nonparametric (NP) with and without latent abnormal values exclusion (LAVE). Regression parameters from cotested samples were evaluated for harmonizing intrainstitutional reference data. RESULTS Mayo-SAS quintile, LAVE(-)NP, and EP Evaluator generated similar RIs, but these RIs often were wider than RIs from parametric procedures. LAVE procedures generated narrower RIs for nutritional and inflammatory markers. Transformation with regression parameters did not ensure homogeneity of merged data. CONCLUSIONS Parametric methods are recommended when inappropriate values cannot be excluded. The nonparametric procedures may generate wider RIs. Data sets larger than 200 are recommended for robust estimates. Caution should be exercised when merging intrainstitutional data.
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Affiliation(s)
- George G Klee
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | | | - Nikola A Baumann
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | - Sandra C Bryant
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN
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Lee TH, Setty PT, Parthasarathy G, Bailey KR, Wood-Wentz CM, Fletcher JG, Takahashi N, Khosla S, Moynagh MR, Zinsmeister AR, Bharucha AE. Aging, Obesity, and the Incidence of Diverticulitis: A Population-Based Study. Mayo Clin Proc 2018; 93:1256-1265. [PMID: 30193674 PMCID: PMC6200415 DOI: 10.1016/j.mayocp.2018.03.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/16/2018] [Accepted: 03/06/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To understand why the population-based incidence of diverticulitis has increased over time, we studied temporal changes in age, body mass index (BMI), and diverticulitis in Olmsted County, Minnesota. PARTICIPANTS AND METHODS We compared the BMIs of 2967 patients with diverticulitis and 9795 people without diverticulitis from January 1, 1980, through December 31, 2007. Because BMI is a surrogate for adipose tissue, computed tomographic estimations of abdominal fat content were compared between 381 diverticulitis cases and 381 age- and sex-matched controls. RESULTS Between 1980 and 2007, the prevalence of obesity increased from 12% to 49% in the population and from 19% to 40% in patients with diverticulitis (P<.001 for both). Temporal trends in age, BMI, and the increased incidence of diverticulitis in people with normal BMI accounted for 48%, 47%, and 20%, respectively, of corresponding trends in diverticulitis. The secular decline in the proportion of people with normal BMI was partly offset by an increased incidence of diverticulitis in such people. In the case-control study, BMI was greater in cases than in controls (P=.001). However, after incorporating abdominal visceral (odds ratio [OR], 2.4; 95% CI, 1.6-3.7) and subcutaneous (OR, 2.9; 95% CI, 1.7-5.2) fat content (both associated with diverticulitis), BMI was associated with lower risk (OR, 0.8; 95% CI, 0.7-0.8) of diverticulitis. CONCLUSION Aging, increasing obesity, and the increased incidence of diverticulitis in people with normal BMI account for the temporal increase in diverticulitis. Rather than BMI per se, increased abdominal visceral and subcutaneous fat are independently associated with diverticulitis. The incidence of diverticulitis, which is among the most common gastrointestinal diagnoses in hospitalized patients, has increased markedly since 2000. This study suggests that aging, increasing obesity, and the increased incidence of diverticulitis in people with normal BMI account for the temporal increase in diverticulitis.
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Affiliation(s)
- Tae Hee Lee
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN
| | | | | | - Kent R Bailey
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | | | | | | | - Sundeep Khosla
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN
| | | | | | - Adil E Bharucha
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN.
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11
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Chen D, Uhl CB, Bryant SC, Krumwiede M, Barness RL, Olson MC, Gossman SC, Erdogan Damgard S, Gamb SI, Cummins LA, Charlesworth JE, Wood-Wentz CM, Salisbury JL, Plumhoff EA, Van Cott EM, He R, Warad DM, Pruthi RK, Heit JA, Nichols WL, White JG. Diagnostic laboratory standardization and validation of platelet transmission electron microscopy. Platelets 2018; 29:574-582. [PMID: 29863946 DOI: 10.1080/09537104.2018.1476682] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Platelet transmission electron microscopy (PTEM) is considered the gold standard test for assessing distinct ultrastructural abnormalities in inherited platelet disorders (IPDs). Nevertheless, PTEM remains mainly a research tool due to the lack of standardized procedures, a validated dense granule (DG) count reference range, and standardized image interpretation criteria. The aim of this study was to standardize and validate PTEM as a clinical laboratory test. Based on previously established methods, we optimized and standardized preanalytical, analytical, and postanalytical procedures for both whole mount (WM) and thin section (TS) PTEM. Mean number of DG/platelet (plt), percentage of plts without DG, platelet count (PC), mean platelet volume (MPV), immature platelet fraction (IPF), and plt light transmission aggregometry analyses were measured on blood samples from 113 healthy donors. Quantile regression was used to estimate the reference range for DG/plt, and linear regression was used to assess the association of DG/plt with other plt measurements. All PTEM procedures were standardized using commercially available materials and reagents. DG interpretation criteria were established based on previous publications and expert consensus, and resulted in improved operator agreement. Mean DG/plt was stable for 2 days after blood sample collection. The median within patient coefficient of variation for mean DG/plt was 22.2%; the mean DG/plt reference range (mid-95th %) was 1.2-4.0. Mean DG/plt was associated with IPF (p = .01, R2 = 0.06) but not age, sex, PC, MPV, or plt maximum aggregation or primary slope of aggregation (p > .17, R2 < 0.02). Baseline ultrastructural features were established for TS-PTEM. PTEM was validated using samples from patients with previously established diagnoses of IPDs. Standardization and validation of PTEM procedures and interpretation, and establishment of the normal mean DG/plt reference range and PTEM baseline ultrastructural features, will facilitate implementation of PTEM as a valid clinical laboratory test for evaluating ultrastructural abnormalities in IPDs.
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Affiliation(s)
- Dong Chen
- a Division of Hematopathology , Mayo Clinic , Rochester , Minnesota , USA
| | - Cindy B Uhl
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | - Sandra C Bryant
- c Division of Biomedical Statistics and Informatics , Mayo Clinic , Rochester , Minnesota , USA
| | - Marcy Krumwiede
- d Departments of Laboratory Medicine, Pathology, and Pediatrics , University of Minnesota School of Medicine , Minneapolis , Minnesota , USA
| | - Ryan L Barness
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | - Mary C Olson
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | - Susan C Gossman
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | | | - Scott I Gamb
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | - Lisa A Cummins
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | - Jon E Charlesworth
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | - Christina M Wood-Wentz
- c Division of Biomedical Statistics and Informatics , Mayo Clinic , Rochester , Minnesota , USA
| | - Jeffrey L Salisbury
- b Electron Microscope Core Facility , Mayo Clinic , Rochester , Minnesota , USA
| | | | - Elizabeth M Van Cott
- e Department of Pathology , Massachusetts General Hospital, Harvard Medical School , Boston , Massachusetts , USA
| | - Rong He
- a Division of Hematopathology , Mayo Clinic , Rochester , Minnesota , USA
| | - Deepti M Warad
- a Division of Hematopathology , Mayo Clinic , Rochester , Minnesota , USA
| | - Rajiv K Pruthi
- a Division of Hematopathology , Mayo Clinic , Rochester , Minnesota , USA
| | - John A Heit
- a Division of Hematopathology , Mayo Clinic , Rochester , Minnesota , USA
| | - William L Nichols
- a Division of Hematopathology , Mayo Clinic , Rochester , Minnesota , USA
| | - James G White
- d Departments of Laboratory Medicine, Pathology, and Pediatrics , University of Minnesota School of Medicine , Minneapolis , Minnesota , USA
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12
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Hatch BB, Wood-Wentz CM, Therneau TM, Walker MG, Payne JM, Reeves RK. Factors predictive of survival and estimated years of life lost in the decade following nontraumatic and traumatic spinal cord injury. Spinal Cord 2017; 55:540-544. [PMID: 28169294 DOI: 10.1038/sc.2016.182] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/07/2016] [Accepted: 11/16/2016] [Indexed: 11/09/2022]
Abstract
STUDY DESIGN Retrospective chart review. OBJECTIVES To identify factors predictive of survival after spinal cord injury (SCI). SETTING Tertiary care institution. METHODS Multiple-variable Cox proportional hazards regression analysis for 759 patients with SCI (535 nontraumatic and 221 traumatic) included age, sex, completeness of injury, level of injury, functional independence measure (FIM) scores, rehabilitation length of stay and SCI cause. Estimated years of life lost in the decade after injury was calculated for patients vs uninjured controls. RESULTS Median follow-up was 11.4 years. Population characteristics included paraplegia, 58%; complete injury, 11%; male sex, 64%; and median rehabilitation length of stay, 16 days. Factors independently predictive of decreased survival were increased age (+10 years; hazard ratio (HR (95% CI)), 1.6 (1.4-1.7)), male sex (1.3 (1.0-1.6)), lower dismissal FIM score (-10 points; 1.3 (1.2-1.3)) and all nontraumatic causes. Metastatic cancer had the largest decrease in survival (HR (95% CI), 13.3 (8.7-20.2)). Primary tumors (HR (95% CI), 2.5 (1.7-3.8)), vascular (2.5 (1.6-3.8)), musculoskeletal/stenosis (1.7 (1.2-2.5)) and other nontraumatic SCI (2.3 (1.5-3.6)) were associated with decreased survival. Ten-year survival was decreased in nontraumatic SCI (mean (s.d.), 1.8 (0.3) years lost), with largest decreases in survival for metastatic cancer and spinal cord ischemia. CONCLUSIONS Age, male sex and lower dismissal FIM score were associated with decreased survival, but neither injury severity nor level was associated with it. Survival after SCI varies depending on SCI cause, with survival better after traumatic SCI than after nontraumatic SCI. Metastatic cancer and vascular ischemia were associated with the greatest survival reduction.
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Affiliation(s)
- B B Hatch
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - C M Wood-Wentz
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - T M Therneau
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - M G Walker
- Rockford Spine Center, Rockford, Illinois, USA
| | - J M Payne
- Physical Medicine and Rehabilitation, Mayo Clinic Health System, Faribault, MN, USA
| | - R K Reeves
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
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13
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Kremers HM, Nwojo ME, Ransom JE, Wood-Wentz CM, Melton LJ, Huddleston PM. Trends in the epidemiology of osteomyelitis: a population-based study, 1969 to 2009. J Bone Joint Surg Am 2015; 97:837-45. [PMID: 25995495 PMCID: PMC4642868 DOI: 10.2106/jbjs.n.01350] [Citation(s) in RCA: 230] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The epidemiology of osteomyelitis in the United States is largely unknown. The purpose of this study was to determine long-term secular trends in the incidence of osteomyelitis in a population-based setting. METHODS The study population comprised 760 incident cases of osteomyelitis first diagnosed between January 1, 1969, and December 31, 2009, among residents of Olmsted County, Minnesota. The complete medical records for each potential subject were reviewed to confirm the osteomyelitis diagnosis and to extract details on anatomical sites, infecting organisms, etiological risk factors, and outcomes. RESULTS The overall age and sex-adjusted annual incidence of osteomyelitis was 21.8 cases per 100,000 person-years. The annual incidence was higher for men than for women and increased with age (p < 0.001). Rates increased with the calendar year (p < 0.001) from 11.4 cases per 100,000 person-years in the period from 1969 to 1979 to 24.4 per 100,000 person-years in the period from 2000 to 2009. The incidence remained relatively stable among children and young adults but almost tripled among individuals older than sixty years; this was partly driven by a significant increase in diabetes-related osteomyelitis from 2.3 cases per 100,000 person-years in the period from 1969 to 1979 to 7.6 cases per 100,000 person-years in the period from 2000 to 2009 (p < 0.001). Forty-four percent of cases involved Staphylococcus aureus infections. CONCLUSIONS The reasons for the increase in osteomyelitis between 1969 and 2009 are unclear but could comprise a variety of factors, including changes in diagnosing patterns or increases in the prevalence of risk factors (e.g., diabetes) in this population.
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Affiliation(s)
- Hilal Maradit Kremers
- Departments of Health Sciences Research (H.M.K., J.E.R., C.M.W.-W., and L.J.M.) and Orthopedic Surgery (P.M.H.), Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. E-mail address for H.M. Kremers:
| | - Macaulay E. Nwojo
- Dignity Health St. Joseph’s Hospital and Medical Center, 300 West Thomas Road, Phoenix, AZ 85013
| | - Jeanine E. Ransom
- Departments of Health Sciences Research (H.M.K., J.E.R., C.M.W.-W., and L.J.M.) and Orthopedic Surgery (P.M.H.), Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. E-mail address for H.M. Kremers:
| | - Christina M. Wood-Wentz
- Departments of Health Sciences Research (H.M.K., J.E.R., C.M.W.-W., and L.J.M.) and Orthopedic Surgery (P.M.H.), Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. E-mail address for H.M. Kremers:
| | - L. Joseph Melton
- Departments of Health Sciences Research (H.M.K., J.E.R., C.M.W.-W., and L.J.M.) and Orthopedic Surgery (P.M.H.), Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. E-mail address for H.M. Kremers:
| | - Paul M. Huddleston
- Departments of Health Sciences Research (H.M.K., J.E.R., C.M.W.-W., and L.J.M.) and Orthopedic Surgery (P.M.H.), Mayo Clinic, 200 First Street S.W., Rochester, MN 55905. E-mail address for H.M. Kremers:
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14
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Frazee EN, Personett HA, Wood-Wentz CM, Herasevich V, Lieske JC, Kashani KB. Overestimation of Glomerular Filtration Rate Among Critically Ill Adults With Hospital-Acquired Oligoanuric Acute Kidney Injury. J Pharm Pract 2014; 29:125-31. [PMID: 25326198 DOI: 10.1177/0897190014549841] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Medication use in the intensive care unit (ICU) depends on creatinine-based glomerular filtration rate (GFR) estimates. Urine output deterioration may precede the creatinine rise resulting in delayed recognition of GFR reductions. Our objective was to quantify the disparity between estimated GFR (eGFR) and true GFR in ICU patients with hospital-acquired oligoanuric acute kidney injury (hAKI). METHODS This single-center cohort study examined adults who met the Acute Kidney Injury Network stage III urine output criterion ≥48 hours after ICU admission. True GFR was ≤15 mL/min/1.73 m(2), and eGFR was described by 6 different creatinine-based equations. True GFR and eGFR were compared on the day of hAKI diagnosis and followed for 4 days using multivariable linear regression with generalized estimating equations, adjusting for day and method. RESULTS Of the 691 patients screened, we enrolled 61 patients. After adjustment for multiple comparisons and day, there were significant differences in eGFR between the estimation methods and true GFR (P < .001). After day adjustment, eGFR overestimated true GFR by 17 to 50 mL/min/1.73 m(2) and overestimation persisted through the fourth day of hAKI (P ≤ .001). CONCLUSION Creatinine-based equations overestimated GFR in ICU patients with hAKI. This study highlights a population at risk of medication misadventures in whom systems optimization should be considered.
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Affiliation(s)
- Erin N Frazee
- Hospital Pharmacy Services, Mayo Clinic, Rochester, MN, USA
| | | | | | - Vitaly Herasevich
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - John C Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Kianoush B Kashani
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
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15
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Winder RP, Severson EP, Trousdale RT, Pagnano MW, Wood-Wentz CM, Sierra RJ. No difference in 90-day complications between bilateral unicompartmental and total knee arthroplasty. Am J Orthop (Belle Mead NJ) 2014; 43:E30-E33. [PMID: 24551868] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study compares the 90-day complication rate of 28 patients who underwent simultaneous bilateral unicompartmental knee arthroplasty (UKA) with a matched control group of 56 patients who underwent simultaneous total knee arthroplasty (TKA.) We matched the groups 2:1 for age, gender, and American Society of Anesthesiologists scores and reviewed their medical records to identify complications, reoperations, and hospital readmission during the first 90 days after surgery as well as the operative times and length of hospital stay. The bilateral UKA group had shorter operative times (P = 0.06) and shorter length of hospital stay (P < 0.001). Ninety-day complications in the UKA group included 1 wound infection and 1 deep vein thrombosis (3.57%). The TKA group had 2 complications including 1 superficial wound infection and 1 pulmonary embolism (1.79%) (P = 0.60). One knee in each group required irrigation and debridement for wound infection. These patients requiring additional surgery for wound infection were the only 2 patients that required readmission within 90 days. Despite being a less invasive procedure, we found that the bilateral UKA group had a similar risk of complications to a matched group of bilateral TKA patients.
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Affiliation(s)
| | | | | | | | | | - Rafael J Sierra
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN.
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16
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Craici IM, Wagner SJ, Bailey KR, Fitz-Gibbon PD, Wood-Wentz CM, Turner ST, Hayman SR, White WM, Brost BC, Rose CH, Grande JP, Garovic VD. Podocyturia predates proteinuria and clinical features of preeclampsia: longitudinal prospective study. Hypertension 2013; 61:1289-96. [PMID: 23529165 DOI: 10.1161/hypertensionaha.113.01115] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Podocyturia, the shedding of live podocytes, is present at delivery in women with preeclampsia. The aim of this study was to test whether podocyturia is present earlier in pregnancy and predicts for preeclampsia. We also aimed to compare test characteristics of podocyturia with those of angiogenic factors previously implicated in the pathogenesis of this disorder. We prospectively enrolled 315 women who provided blood and urine samples at the end of the second trimesters of their pregnancies (median, 27 gestational weeks) and within 24 hours of their deliveries (median, 39.5 gestational weeks). Blood samples were analyzed for angiogenic markers, including placental growth factor, the soluble receptor fms-like tyrosine kinase receptor-1 for vascular endothelial growth factor, and endoglin. The urine sediments were analyzed for podocytes, identified by staining for podocin after culturing the urinary sediments for 24 hours. This analysis included all women who developed preeclampsia (n=15), gestational hypertension (n=15), and a subsample of women who remained normotensive throughout pregnancy (n=44), matched for maternal age and number of previous pregnancies to those who developed preeclampsia. At the second trimester collection, all women who developed preeclampsia had podocyturia, compared with none of those who remained normotensive or were diagnosed with gestational hypertension. Podocyturia in the second trimester had a significantly greater sensitivity and specificity for the subsequent diagnosis of preeclampsia than any single angiogenic marker or a combination thereof. Screening for podocyturia at the end of the second trimester may allow for accurate identification of pregnant women at risk for preeclampsia.
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Affiliation(s)
- Iasmina M Craici
- Division of Nephrology and Hypertension, Department of Internal Medicine, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
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17
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Kakar S, Swann RP, Perry KI, Wood-Wentz CM, Shin AY, Moran SL. Functional and radiographic outcomes following distal ulna implant arthroplasty. J Hand Surg Am 2012; 37:1364-71. [PMID: 22721459 DOI: 10.1016/j.jhsa.2012.03.026] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 03/12/2012] [Accepted: 03/13/2012] [Indexed: 02/02/2023]
Abstract
PURPOSE To determine the outcome of ulnar head endoprostheses in the treatment of distal radioulnar joint instability, arthrosis, or both. METHODS We conducted a retrospective review of 47 patients to analyze the outcome of a single ulnar head replacement over a 10-year period. All patients reported pain or instability at the distal radioulnar joint. Standardized assessments included a patient-rated pain score, forearm range of motion, grip strength, and Mayo wrist score. We examined preoperative and postoperative radiographs for final implant position, loosening, and osteolysis. RESULTS We observed 47 patients for a median of 56 months (minimum, 16 mo). There was a statistically significant decrease in pain scores from 4.6 to 2.2 and improvement in the mean Mayo wrist score from 14 to 69 points after surgery. There was no significant improvement in forearm rotation and wrist function. Kaplan-Meier analysis demonstrated 83% survival at 6 years. A total of 14 patients (30%) required additional surgical procedures after primary arthroplasty. Risk factors for failure included history of previous surgery, use of an extended collar, lucency greater than 2 mm around the implant stem, and pedestal formation at the tip of the implant. CONCLUSIONS Distal ulna implant arthroplasty reduces pain and improves function in patients with distal radioulnar joint instability, arthrosis, or both.
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Affiliation(s)
- Sanjeev Kakar
- Department of Orthopaedic and Plastic Surgery, Mayo Clinic, Rochester, MN 55905, USA
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18
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Clapp AJ, Lee CU, Wood-Wentz CM, Leung N, Dispenzieri A. Imaging evidence for renomegaly in patients with POEMS syndrome. Acad Radiol 2011; 18:1241-4. [PMID: 21782480 DOI: 10.1016/j.acra.2011.05.008] [Citation(s) in RCA: 1] [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] [Received: 01/25/2011] [Revised: 05/07/2011] [Accepted: 05/16/2011] [Indexed: 01/16/2023]
Abstract
RATIONALE AND OBJECTIVES Organomegaly in POEMS syndrome generally refers to the liver, spleen, and lymph nodes. This study investigates whether there is a significant difference in kidney sizes in patients with POEMS compared to normal controls. MATERIALS AND METHODS Calculated kidney volumes from 77 patients with POEMS syndrome who had undergone imaging by computed tomography or magnetic resonance imaging were compared to frequency-matched controls. For the POEMS patients and the controls, the volume of each kidney was obtained from a three-dimensional segmentation algorithm. Univariate and multiple variable linear regression models were used to identify any differences in kidney size between normal and POEMS patients. RESULTS There was a univariate statistically significant association between disease state and the difference in kidney volume; having POEMS was associated with 16.3 cm(3) greater kidney volume difference compared to control patients, P < .001. Using a multiple variable model and after adjusting for age, sex, and the smaller kidney size, there was a statistically significant association between disease state and the difference in kidney volume; having POEMS was associated with 16.8 cm(3) greater kidney volume compared to control patients, P < .001. There was not an independent statistically significant association between age, sex, or volume of the smaller kidney and the difference in kidney volume. CONCLUSION This confirms what is known or suspected clinically, that organomegaly in POEMS includes renomegaly.
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Affiliation(s)
- Allison J Clapp
- Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
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19
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Clark CJ, Wood-Wentz CM, Reid-Lombardo KM, Kendrick ML, Huebner M, Que FG. Lymphadenectomy in the staging and treatment of intrahepatic cholangiocarcinoma: a population-based study using the National Cancer Institute SEER database. HPB (Oxford) 2011; 13:612-20. [PMID: 21843261 PMCID: PMC3183445 DOI: 10.1111/j.1477-2574.2011.00340.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [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] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Although lymphatic spread is common in intrahepatic cholangiocarcinoma (ICC), lymphadenectomy is not widely performed as part of operative resection in this disease. The objectives of this study were to assess national trends for lymphadenectomy and its impact on survival in patients with ICC. METHODS The National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) registry was queried to identify patients with ICC (n=4893) reported during 1988-2007. Kaplan-Maier and Cox proportional hazards regression were used to analyse survival. RESULTS Five-year overall survival (OS) was 5.2%. Lymph node (LN) status was available for 48.9% (n=2391) of patients. Histologic LN evaluation was performed in 13.5% (n=658) of patients for a median of two (interquartile range: 1-3) LNs. During the study period, the frequency of histologic LN assessment (P=0.78) did not change in liver resection patients. In the 733 resected patients, positive vs. negative LN status was associated with worse 5-year OS of 8.4% vs. 25.9%, respectively (hazard ratio=1.8; P<0.001). CONCLUSIONS Nodal status is an important prognostic factor for survival in patients diagnosed with ICC. In the USA, few patients undergo hepatic resection with lymphadenectomy; therefore, the clinical benefit of formal lymphadenectomy in ICC remains unknown.
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Affiliation(s)
- Clancy J Clark
- Division of Gastroenterology and General Surgery, Mayo ClinicRochester, MN, USA
| | | | | | - Michael L Kendrick
- Division of Gastroenterology and General Surgery, Mayo ClinicRochester, MN, USA
| | - Marianne Huebner
- Division of Biomedical Statistics and Informatics, Mayo ClinicRochester, MN, USA
| | - Florencia G Que
- Division of Gastroenterology and General Surgery, Mayo ClinicRochester, MN, USA
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