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Hudon A, Kiepura B, Pelletier M, Phan V. Using ChatGPT in Psychiatry to Design Script Concordance Tests in Undergraduate Medical Education: Mixed Methods Study. JMIR Med Educ 2024; 10:e54067. [PMID: 38596832 PMCID: PMC11007379 DOI: 10.2196/54067] [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] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 04/11/2024]
Abstract
Background Undergraduate medical studies represent a wide range of learning opportunities served in the form of various teaching-learning modalities for medical learners. A clinical scenario is frequently used as a modality, followed by multiple-choice and open-ended questions among other learning and teaching methods. As such, script concordance tests (SCTs) can be used to promote a higher level of clinical reasoning. Recent technological developments have made generative artificial intelligence (AI)-based systems such as ChatGPT (OpenAI) available to assist clinician-educators in creating instructional materials. Objective The main objective of this project is to explore how SCTs generated by ChatGPT compared to SCTs produced by clinical experts on 3 major elements: the scenario (stem), clinical questions, and expert opinion. Methods This mixed method study evaluated 3 ChatGPT-generated SCTs with 3 expert-created SCTs using a predefined framework. Clinician-educators as well as resident doctors in psychiatry involved in undergraduate medical education in Quebec, Canada, evaluated via a web-based survey the 6 SCTs on 3 criteria: the scenario, clinical questions, and expert opinion. They were also asked to describe the strengths and weaknesses of the SCTs. Results A total of 102 respondents assessed the SCTs. There were no significant distinctions between the 2 types of SCTs concerning the scenario (P=.84), clinical questions (P=.99), and expert opinion (P=.07), as interpretated by the respondents. Indeed, respondents struggled to differentiate between ChatGPT- and expert-generated SCTs. ChatGPT showcased promise in expediting SCT design, aligning well with Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria, albeit with a tendency toward caricatured scenarios and simplistic content. Conclusions This study is the first to concentrate on the design of SCTs supported by AI in a period where medicine is changing swiftly and where technologies generated from AI are expanding much faster. This study suggests that ChatGPT can be a valuable tool in creating educational materials, and further validation is essential to ensure educational efficacy and accuracy.
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Affiliation(s)
- Alexandre Hudon
- Department of Psychiatry and Addictology, University of Montreal, Montreal, QC, Canada
| | - Barnabé Kiepura
- Department of Psychiatry and Addictology, University of Montreal, Montreal, QC, Canada
| | | | - Véronique Phan
- Department of Pediatrics, Université de Montréal, Montreal, QC, Canada
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Ma J, Siminoski K, Jaremko JL, Koujok K, Matzinger MA, Shenouda N, Wilson N, Cheng M, Alos N, Atkinson S, Cummings EA, Ho J, Rodd C, Sbrocchi AM, Stein R, Barr R, Cairney E, Dix DB, Fernandez CV, Grant R, Halton J, Israels S, Laverdière C, Lewis VA, Cabral DA, Huber A, Houghton K, Jurencak R, Lang B, Larché M, LeBlanc CMA, Miettunen P, Roth J, Scuccimarri R, Bell L, Blydt-Hansen T, Filler G, Feber J, Phan V, Smit K, Rauch F, Ward LM. Vertebral Body Reshaping after Fractures: An Important Index of Recovery in Glucocorticoid-Treated Children. J Clin Endocrinol Metab 2024; 109:e1225-e1237. [PMID: 37843393 DOI: 10.1210/clinem/dgad611] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/20/2023] [Accepted: 10/12/2023] [Indexed: 10/17/2023]
Abstract
PURPOSE In this 6-year study we identified factors associated with spontaneous vertebral body reshaping in glucocorticoid (GC)-treated children with leukemia, rheumatic disorders, and nephrotic syndrome. METHODS Subjects were 79 children (mean age 7.4 years) who had vertebral fracture (VF) evaluation on lateral spine radiographs at least 1 year after VF detection. VF were graded using the modified Genant semiquantitative method and fracture burden for individuals was quantified using the spinal deformity index (SDI; sum of grades from T4 to L4). RESULTS Sixty-five children (82.3%) underwent complete vertebral body reshaping (median time from VF detection to complete reshaping 1.3 years by Cox proportional hazard modeling). Of 237 VF, the majority (83.1%) ultimately reshaped, with 87.2% reshaping in the thoracic region vs 70.7% in the lumbar region (P = .004). Cox models showed that (1) every g/m2 increase in GC exposure in the first year after VF detection was associated with a 19% decline in the probability of reshaping; (2) each unit increase in the SDI at the time of VF detection was associated with a 19% decline in the probability of reshaping [hazard ratio (HR) = 0.81; 95% confidence interval (CI) = 0.71, 0.92; P = .001]; (3) each additional VF present at the time of VF detection reduced reshaping by 25% (HR = 0.75; 95% CI = 0.62, 0.90; P = .002); and (4) each higher grade of VF severity decreased reshaping by 65% (HR = 0.35; 95% CI = 0.21, 0.57; P < .001). CONCLUSION After experiencing a VF, children with higher GC exposure, higher SDI, more severe fractures, or lumbar VF were at increased risk for persistent vertebral deformity.
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Affiliation(s)
- Jinhui Ma
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Kerry Siminoski
- Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB T6G 2B7, Canada
| | - Jacob L Jaremko
- Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB T6G 2B7, Canada
| | - Khaldoun Koujok
- Department of Radiology, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Mary Ann Matzinger
- Department of Radiology, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Nazih Shenouda
- Department of Radiology, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Nagwa Wilson
- Department of Radiology, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Megan Cheng
- Faculty of Health Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Nathalie Alos
- Département de pédiatrie, Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Stephanie Atkinson
- Department of Pediatrics, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Elizabeth A Cummings
- Department of Pediatrics, Dalhousie University/IWK Health, Halifax, NS B3K 6R8, Canada
| | - Josephine Ho
- Department of Pediatrics, University of Calgary, Calgary, AB T3B 6A8, Canada
| | - Celia Rodd
- Department of Pediatrics and Child Health, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Anne Marie Sbrocchi
- Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3G 2M1, Canada
| | - Robert Stein
- Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5W9, Canada
| | - Ronald Barr
- Department of Pediatrics, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Elizabeth Cairney
- Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5W9, Canada
| | - David B Dix
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 3V4, Canada
| | - Conrad V Fernandez
- Department of Pediatrics, Dalhousie University/IWK Health, Halifax, NS B3K 6R8, Canada
| | - Ronald Grant
- Department of Pediatrics, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Jacqueline Halton
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Sara Israels
- Department of Pediatrics and Child Health, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Caroline Laverdière
- Département de pédiatrie, Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Victor A Lewis
- Department of Pediatrics, University of Calgary, Calgary, AB T3B 6A8, Canada
| | - David A Cabral
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 3V4, Canada
| | - Adam Huber
- Department of Pediatrics, Dalhousie University/IWK Health, Halifax, NS B3K 6R8, Canada
| | - Kristin Houghton
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 3V4, Canada
| | - Roman Jurencak
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Bianca Lang
- Department of Pediatrics, Dalhousie University/IWK Health, Halifax, NS B3K 6R8, Canada
| | - Maggie Larché
- Department of Medicine, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Claire M A LeBlanc
- Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3G 2M1, Canada
| | - Paivi Miettunen
- Department of Pediatrics, University of Calgary, Calgary, AB T3B 6A8, Canada
| | - Johannes Roth
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Department of Pediatrics, Kantonsspital Luzern, 6004 Luzern, Switzerland
| | - Rosie Scuccimarri
- Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3G 2M1, Canada
| | - Lorraine Bell
- Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3G 2M1, Canada
| | - Tom Blydt-Hansen
- Department of Pediatrics, University of British Columbia, Vancouver, BC V6H 3V4, Canada
| | - Guido Filler
- Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5W9, Canada
| | - Janusz Feber
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Véronique Phan
- Département de pédiatrie, Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Kevin Smit
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Frank Rauch
- Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3G 2M1, Canada
| | - Leanne M Ward
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
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Sohn SY, Russell CD, Jamjoom AAB, Poon MT, Lawson McLean A, Ahmed AI, Abdulla MAH, Alalade A, Bailey M, Basu S, Baudracco I, Bayston R, Bhattacharya A, Bodkin P, Boissaud-Cooke M, Bojanic S, Brennan PM, Bulters DO, Buxton N, Chari A, Corns R, Coulter C, Coulter I, Critchley G, Dando A, Dardis R, Duddy J, Dyson E, Edwards R, Garnett M, Gatcher S, Georges H, Glancz LJ, Gray WP, Hallet J, Harte J, Haylock-Vize P, Hutchinson PJ, Humphreys H, Jenkinson MD, Joannides AJ, Kandasamy J, Kitchen J, Kolias AG, Loan JJM, Ma R, Madder H, Mallucci CL, Manning A, Mcelligott S, Mukerji N, Narayanamurthy H, O’Brien D, Okasha M, Papadopoulos M, Phan V, Phang I, Poots J, Rajaraman C, Roach J, Ross N, Sharouf F, Shastin D, Simms N, Steele L, Solth A, Tajsic T, Talibi S, Thanabalasundaram G, Vintu M, Wan Y, Wang D, Watkins L, Whitehouse K, Whitfield PC, Williams A, Zaben M. Comparison of suspected and confirmed internal EVD-related infections: a prospective multi-centre U.K. observational study. Open Forum Infect Dis 2022; 9:ofac480. [PMID: 36267249 PMCID: PMC9578167 DOI: 10.1093/ofid/ofac480] [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: 06/22/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Background Diagnosis of internal external ventricular drain (EVD)-related infections (iERI) is an area of diagnostic difficulty. Empiric treatment is often initiated on clinical suspicion. There is limited guidance around antimicrobial management of confirmed versus suspected iERI. Methods Data on patients requiring EVD insertion were collected from 21 neurosurgical units in the United Kingdom from 2014 to 2015. Confirmed iERI was defined as clinical suspicion of infection with positive cerebrospinal fluid (CSF) culture and/or Gram stain. Cerebrospinal fluid, blood, and clinical parameters and antimicrobial management were compared between the 2 groups. Mortality and Modified Rankin Scores were compared at 30 days post-EVD insertion. Results Internal EVD-related infection was suspected after 46 of 495 EVD insertions (9.3%), more common after an emergency insertion. Twenty-six of 46 were confirmed iERIs, mostly due to Staphylococci (16 of 26). When confirmed and suspected infections were compared, there were no differences in CSF white cell counts or glucose concentrations, nor peripheral blood white cell counts or C-reactive protein concentrations. The incidence of fever, meningism, and seizures was also similar, although altered consciousness was more common in people with confirmed iERI. Broad-spectrum antimicrobial usage was prevalent in both groups with no difference in median duration of therapy (10 days [interquartile range {IQR}, 7–24.5] for confirmed cases and 9.5 days [IQR, 5.75–14] for suspected, P = 0.3). Despite comparable baseline characteristics, suspected iERI was associated with lower mortality and better neurological outcomes. Conclusions Suspected iERI could represent sterile inflammation or lower bacterial load leading to false-negative cultures. There is a need for improved microbiology diagnostics and biomarkers of bacterial infection to permit accurate discrimination and improve antimicrobial stewardship.
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Affiliation(s)
- Sei Yon Sohn
- Division of Anaesthesia, University of Cambridge , Cambridge , U.K
| | - Clark D Russell
- University of Edinburgh Centre for Inflammation Research, Queen’s Medical Research Institute , Edinburgh , U.K
| | - Aimun AB Jamjoom
- Department of Clinical Neuroscience, Royal Infirmary of Edinburgh , Edinburgh , U.K
| | - Michael T Poon
- Department of Clinical Neuroscience, Royal Infirmary of Edinburgh , Edinburgh , U.K
| | - Aaron Lawson McLean
- Department of Neurosurgery, Jena University Hospital – Friedrich Schiller University Jena , Jena , Germany
| | - Aminul I Ahmed
- Wolfson CARD, King’s College London and Department of Neurosurgery, King’s College Hospital , London , U.K
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Stratton P, Tandon H, Phan V, Aredo J, Sinaii N, Shah J, Karp B. O-156 Role of botulinum toxin for the treatment of sexual and pelvic pain in endometriosis. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.062] [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: 11/13/2022] Open
Abstract
Abstract
Pelvic pain persists despite standard care in about 30% of women with a history of endometriosis and pain. Pelvic pain may be accompanied by spasm in pelvic floor muscles that results in sexual pain, impairs intimacy, and might contribute to maintenance of chronic pelvic pain. These women also often have pain sensitization, within and beyond the pelvis. Botulinum toxin is commonly used for conditions with muscle overactivity and pain. We therefore evaluated its potential to decrease pelvic floor spasm and ameliorate chronic pelvic pain in such women. In a randomized, double-masked, placebo-controlled trial, women aged 18-50 years with surgically diagnosed endometriosis and chronic pelvic pain despite optimized hormonal treatment received 100U onabotulinumtoxinA or placebo into pelvic floor muscles with palpable spasm (NCT01553201). At least one month after the masked injection and any time over the next year, participants could request a 2nd injection, which was always botulinum toxin, again injected into muscles with spasm. Pain and spasm were assessed before the first (masked) study injection and one month later (before a second open injection of botulinum toxin) as the primary outcome measure and then at regular intervals over the next year, including after the optional 2nd injection. The women were able to continue their regular pain medications while in the study but were asked not to change any hormonal treatments they were using. Pain medication usage and other aspects of response, including side effects, were tracked.
This National Institutes of Health study included 29 women who were premenopausal and who had persistent pain for over 10 years on average despite having optimized standard treatment, such as surgery and hormones, for their endometriosis. All had pelvic floor muscle spasm and described the pelvic floor as a major focus of pain. Twenty-two of 23 reporting current hormone use had menses suppression. Nineteen of 29 characterized pelvic tenderness as focal, not diffuse. All showed widespread myofascial dysfunction with myofascial trigger-points in >two-thirds of assessed regions. Widespread sensitization was present in 16/29; regional sensitization (thoracic: 20/29; pelvic 17/29) was common.
The primary outcome, participants’ self-report of benefit and pain relief, showed that botulinum toxin was more likely than placebo to provide benefit. On exam, the women receiving toxin had a corresponding decrease in spasm in the muscles of the pelvic floor compared to before injection. Twenty-seven women requested a 2nd injection, 16 at the one-month time point and 11 later in the year. The 2 patients who did not ask for a 2nd injection had received botulinum toxin and experienced persistent benefit; one subsequently became pregnant. Over the entire year-long study, only 4 patients, two from the group who initially received botulinum toxin and two from the placebo group, did not have durable benefit even after the 2nd injection. Sixteen women had continued benefit at the end of the study. While there was local pain and discomfort with the intravaginal injections, there were no serious side effects attributable to the botulinum toxin itself at the 100U dose used in the study. Baseline and current disability predicted improvement in pain, sexual intercourse, functioning, fatigue and mental health scores.
We demonstrate pelvic floor muscle spasm as part of endometriosis-associated chronic pelvic pain and relief of pain/spasm from onabotulinumtoxinA compared to placebo that persisted over time. OnabotulinumtoxinA was well-tolerated. The findings illustrate a viscero-somatic reflex relationship between endometriosis lesions and muscle spasm and suggest that pelvic floor spasm may initiate or maintain sensitization. Although additional research is needed, this study supports that onabotulinumtoxinA can safely and effectively treat chronic pelvic pain in women with a history of endometriosis and ongoing spasm in the pelvic floor muscles.
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Affiliation(s)
- P Stratton
- National Institute of Neurological Disorders and Stroke NINDS, Office of the Clinical Director, Bethesda- MD , U.S.A
| | - H.K Tandon
- National Institutes of Health NIH, Rehabilitation Medicine Department- Clinical Center RMD- CC , Bethesda- MD, U.S.A
| | - V Phan
- National Institutes of Health NIH, Rehabilitation Medicine Department- Clinical Center RMD- CC , Bethesda- MD, U.S.A
| | - J.V Aredo
- National Institutes of Health NIH, Rehabilitation Medicine Department- Clinical Center RMD- CC , Bethesda- MD, U.S.A
| | - N Sinaii
- National Institutes of Health NIH, Biostatistics and Clinical Epidemiology Service- Clinical Center BCES- CC , Bethesda- MD, U.S.A
| | - J.P Shah
- National Institutes of Health NIH, Rehabilitation Medicine Department- Clinical Center RMD- CC , Bethesda- MD, U.S.A
| | - B.I Karp
- National Institute of Neurological Disorders and Stroke NINDS, Office of the Clinical Director, Bethesda- MD , U.S.A
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Dziarmaga R, Ke D, Sapir-Pichhadze R, Cardinal H, Phan V, Piccirillo CA, Mazer B, Foster BJ. Age- and sex-mediated differences in T lymphocyte populations of kidney transplant recipients. Pediatr Transplant 2022; 26:e14150. [PMID: 34569133 DOI: 10.1111/petr.14150] [Citation(s) in RCA: 3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Graft failure rates increase through childhood and adolescence, decline in adulthood, and are higher in female than male kidney transplant recipients (KTR) until middle age. We aimed to describe age- and sex-related differences in T-cell subsets among KTR to determine which differences may help to explain the differences in kidney graft failure rates. METHODS Effector T (Teff)-cell and regulatory T (Treg)-cell phenotypes in PBMCs from healthy controls and KTR, who were at least 1 year post-transplant with stable graft function under immunosuppression, were analyzed by flow cytometry. The effects of age, sex, and status (KTR or control) were analyzed using linear regressions. RESULTS We enrolled 20 male and 21 female KTR and 20 male and 20 female controls between 3 and 29 years of age. CD3+ T-cell frequencies were not associated with age or sex but were higher in KTR than controls. There were no differences in CD4+ and CD8+ frequencies. Th1 (IFNγ+ IL-4- IL-17A-) and Th17 (IL-17A+) frequencies within the CD4+ T-cell population were higher at older ages. The frequencies of FOXP3 + Helios + Treg cells in CD4+ CD25+ CD127- T cells were lower in females than males and in KTR than controls. CONCLUSIONS Increasing frequencies of Th1 and Th17 cells with increasing age mirrors the increasing graft failure rates from childhood to young adulthood. Importantly, sex differences in frequencies of circulating Treg cells may suggest a role in the sex differences in graft failure rates.
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Affiliation(s)
- Robert Dziarmaga
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
| | - Danbing Ke
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Ruth Sapir-Pichhadze
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Division of Nephrology and Multi-Organ Transplant Program, McGill University, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Héloïse Cardinal
- Département de Médecine, Université de Montréal, Montreal, Quebec, Canada.,Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Véronique Phan
- Département de Pédiatrie, Université de Montréal, Montreal, Quebec, Canada.,Centre Hospitalier Universitaire Sainte-Justine, Montreal, Quebec, Canada
| | - Ciriaco A Piccirillo
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Bruce Mazer
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Bethany J Foster
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada.,Department of Pediatrics, McGill University, Montreal, Quebec, Canada
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Deschênes MF, Charlin B, Phan V, Grégoire G, Riendeau T, Henri M, Fehlmann A, Moussa A. Educators and practitioners' perspectives in the development of a learning by concordance tool for medical clerkship in the context of the COVID pandemic. Can Med Educ J 2021; 12:43-54. [PMID: 35003430 PMCID: PMC8740256 DOI: 10.36834/cmej.72461] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND The COVID-19 pandemic has forced medical schools to create educational material to palliate the anticipated and observed decrease in clinical experiences during clerkships. An online learning by concordance (LbC) tool was developed to overcome the limitation of students' experiences with clinical cases. However, knowledge about the instructional design of an LbC tool is scarce, especially the perspectives of collaborators involved in its design: 1- educators who wrote the vignettes' questions and 2- practitioners who constitute the reference panel by answering the LbC questions. The aim of this study was to describe the key elements that supported the pedagogical design of an LbC tool from the perspectives of educators and practitioners. METHODS A descriptive qualitative research design has been used. Online questionnaires were used, and descriptive analysis was conducted. RESULTS Six educators and 19 practitioners participated in the study. Important to the educators in designing the LbC tool were prevalent or high-stake situations, theoretical knowledge, professional situations experienced and perceived difficulties among students, and that the previous workshop promoted peer discussion and helped solidify the writing process. Important for practitioners was standards of practice and consensus among experts. However, they were uncertain of the educational value of their feedback, considering the ambiguity of the situations included in the LbC tool. CONCLUSIONS The LbC tool is a relatively new training tool in medical education. Further research is needed to refine our understanding of the design of such a tool and ensure its content validity to meet the pedagogical objectives of the clerkship.
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Affiliation(s)
- Marie-France Deschênes
- Centre d’innovation en formation infirmière (CIFI) – Center for Innovation in Nursing Education, Université de Montréal, Quebec, Canada
| | | | - Véronique Phan
- Faculté de Médecine, Université de Montréal, Quebec, Canada
| | | | - Tania Riendeau
- Faculté de Médecine, Université de Montréal, Quebec, Canada
| | - Margaret Henri
- Faculté de Médecine, Université de Montréal, Quebec, Canada
| | - Aurore Fehlmann
- Department of Paediatrics, Gynecology and Obstetrics, Geneva University Hospitals, Switzerland
| | - Ahmed Moussa
- Faculté de Médecine, Université de Montréal, Quebec, Canada
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7
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Nunes S, Hessey E, Dorais M, Perreault S, Jouvet P, Phan V, Lacroix J, Lafrance JP, Samuel S, Zappitelli M. Association of pediatric cardiac surgery-associated acute kidney injury with post-discharge healthcare utilization, mortality and kidney outcomes. Pediatr Nephrol 2021; 36:2865-2874. [PMID: 33770283 DOI: 10.1007/s00467-021-04999-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/26/2020] [Revised: 01/18/2021] [Accepted: 02/10/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Acute kidney Injury (AKI) in children undergoing cardiac surgery (CS) is strongly associated with hospital morbidity. Post-discharge CS AKI outcomes are less clear. We evaluated associations between AKI and post-discharge (a) healthcare utilization, (b) chronic kidney disease (CKD) or hypertension and (c) mortality. METHODS This is a retrospective two-centre cohort study of children surviving to hospital discharge after CS. Primary exposures were post-operative ≥Stage 1 AKI and ≥Stage 2 AKI defined by Kidney Disease Impoving Global Outcomes. Association of AKI with time to outcomes was determined using multivariable Cox-Proportional Hazards analysis. RESULTS Of 350 participants included (age 3.1 (4.5) years), 180 [51.4%] developed AKI and 60 [17.1%] developed ≥Stage 2 AKI. Twenty-eight (9%) participants developed CKD or hypertension (composite outcome), and 17 (5%) died within 5 years of discharge. Post-operative ≥Stage 1 and ≥Stage 2 AKI were not associated with post-discharge hospitalizations, emergency room (ER) visits, physician visits or CKD or hypertension in adjusted analyses. A trend was observed between ≥Stage 2 AKI and mortality but was not statistically significant. In unadjusted stratified analyses, AKI was associated with post-discharge hospitalizations in children with RACHS-1 score ≥3, complex chronic disease classification and children living in urban areas. CONCLUSIONS Post-CS AKI is not associated with post-discharge healthcare utilization, death and CKD or hypertension, though it may be associated with healthcare utilization in more complex paediatric CS children. Studies should aim to better understand post-CS healthcare utilization patterns and non-AKI risk factors for CKD, hypertension and mortality, to reduce adverse long-term outcomes after CS.
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Affiliation(s)
- Sophia Nunes
- Child Health Evaluative Sciences, The Hospital for Sick Children, 686 Bay St. 11th Floor, Room 11.9722, Toronto, Ontario, Canada
| | - Erin Hessey
- Child Health Evaluative Sciences, The Hospital for Sick Children, 686 Bay St. 11th Floor, Room 11.9722, Toronto, Ontario, Canada.,Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Marc Dorais
- StatSciences Inc., Notre-Dame-de-I'Île-Perrot, Canada
| | | | - Philippe Jouvet
- Department of Pediatrics, Pediatric Intensive Care Unit, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Canada
| | - Véronique Phan
- Department of Pediatrics, Division of Nephrology, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Canada
| | - Jacques Lacroix
- Department of Pediatrics, Pediatric Intensive Care Unit, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Canada
| | | | - Susan Samuel
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - Michael Zappitelli
- Child Health Evaluative Sciences, The Hospital for Sick Children, 686 Bay St. 11th Floor, Room 11.9722, Toronto, Ontario, Canada. .,Department of Pediatrics, Division of Nephrology, The Hospital for Sick Children, Toronto, Canada.
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Peterson DS, Phan V, Richmond SB, Lee H. Effects of dual-tasking on time-to-boundary during stance in people with PD: A preliminary study. Clin Biomech (Bristol, Avon) 2021; 88:105420. [PMID: 34216987 DOI: 10.1016/j.clinbiomech.2021.105420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/21/2020] [Revised: 05/16/2021] [Accepted: 06/24/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Quiet stance is impacted by Parkinson's disease and dual-tasking. Recently developed outcomes such as the time-to-boundary provide unique insight into balance by integrating center of pressure position with base of support. However, little is known about the effects of Parkinson's disease on time-to-boundary. In particular, the effects of distracting cognitive tasks, and how people with Parkinson's disease prioritize balance and cognitive tasks are poorly understood. METHODS 14 people with Parkinson's disease and 13 controls completed quiet standing and cognitive Stroop tasks separately (single-task) and together (dual-task). 2-dimentional, medio-lateral, and anterior-posterior time-to-boundary were calculated via force-plate data. Traditional sway outcomes, including sway area and path length, were also calculated. Cognitive performance was measured as the verbal reaction time after auditory stimulus delivery. Prioritization was assessed by taking the difference between cognitive and postural dual-task interference. FINDINGS Time-to-boundary was worse in Parkinson's disease compared to controls (2-dimentional: p = .019; anterior-posterior: p = .062; medio-lateral: p = .012). Medio-lateral time-to-boundary, but not anterior-posterior, was significantly worse during dual-tasking than single-tasking (p = .024). Neurotypical adults tended to prioritize cognition over medio-lateral postural outcomes. INTERPRETATION People with Parkinson's disease exhibit worse time-to-boundary than their neurotypical peers, and medio-lateral outcomes were sensitive to single to dual-task performance changes. Further, participants generally showed cognitive prioritization, such that cognitive performance was less impacted than medio-lateral postural outcomes by dual-tasking.
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Affiliation(s)
- D S Peterson
- College of Health Solutions, Arizona State University, 425 N 5(th) St., Phoenix, AZ, USA; Phoenix VA Medical Center, 650 E Indian School Rd., Phoenix, AZ, USA.
| | - V Phan
- School for Engineering of Matter, Transport and Energy, Arizona State University, 501 E Tyler Mall, Tempe, AZ, USA
| | - S B Richmond
- Department of Applied Physiology and Kinesiology, University of Florida, 1864 Stadium Rd., Gainesville, FL, USA
| | - H Lee
- School for Engineering of Matter, Transport and Energy, Arizona State University, 501 E Tyler Mall, Tempe, AZ, USA
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Cummings D, Kershaw S, Ong J, Reid F, Toellner H, Alwandi A, Amer M, George D, Haynes K, Hughes K, Peakall L, Premakumar Y, Punjabi N, Ramwell A, Sawkins H, Ashwood J, Baker A, Baron C, Bhide I, Blake E, De Cates C, Esmail R, Hosamuddin H, Kapp J, Nguru N, Raja M, Thomson F, Ahmed H, Aishwarya G, Al-Huneidi R, Ali S, Aziz R, Burke D, Clarke B, Kausar A, Maskill D, Mecia L, Myers L, Smith ACD, Walker G, Wroe N, Donohoe C, Gibbons D, Jordan P, Keogh C, Kiely A, Lalor P, McCrohan M, Powell C, Foley MP, Reynolds J, Silke E, Thorpe O, Kong JTH, White C, Ali Q, Dalrymple J, Ge Y, Khan H, Luo RS, Paine H, Paraskeva B, Parker L, Pillai K, Salciccioli J, Selvadurai S, Sonagara V, Springford LR, Tan L, Appleton S, Leadholm N, Zhang Y, Ahern D, Cotter M, Cremen S, Durrigan T, Flack V, Hrvacic N, Jones H, Jong B, Keane K, O'Connell PR, O'sullivan J, Pek G, Shirazi S, Barker C, Brown A, Carr W, Chen Y, Guillotte C, Harte J, Kokayi A, Lau K, McFarlane S, Morrison S, Broad J, Kenefick N, Makanji D, Printz V, Saito R, Thomas O, Breen H, Kirk S, Kong CH, O'Kane A, Eddama M, Engledow A, Freeman SK, Frost A, Goh C, Lee G, Poonawala R, Suri A, Taribagil P, Brown H, Christie S, Dean S, Gravell R, Haywood E, Holt F, Pilsworth E, Rabiu R, Roscoe HW, Shergill S, Sriram A, Sureshkumar A, Tan LC, Tanna A, Vakharia A, Bhullar S, Brannick S, Dunne E, Frere M, Kerin M, Kumar KM, Pratumsuwan T, Quek R, Salman M, Van Den Berg N, Wong C, Ahluwalia J, Bagga R, Borg CM, Calabria C, Draper A, Farwana M, Joyce H, Khan A, Mazza M, Pankin G, Sait MS, Sandhu N, Virani N, Wong J, Woodhams K, Croghan N, Ghag S, Hogg G, Ismail O, John N, Nadeem K, Naqi M, Noe SM, Sharma A, Tan S, Begum F, Best R, Collishaw A, Glasbey J, Golding D, Gwilym B, Harrison P, Jackman T, Lewis N, Luk YL, Porter T, Potluri S, Stechman M, Tate S, Thomas D, Walford B, Auld F, Bleakley A, Johnston S, Jones C, Khaw J, Milne S, O'Neill S, Singh KKR, Smith R, Swan A, Thorley N, Yalamarthi S, Yin ZD, Ali A, Balian V, Bana R, Clark K, Livesey C, McLachlan G, Mohammad M, Pranesh N, Richards C, Ross F, Sajid M, Brooke M, Francombe J, Gresly J, Hutchinson S, Kerrigan K, Matthews E, Nur S, Parsons L, Sandhu A, Vyas M, White F, Zulkifli A, Zuzarte L, Al-Mousawi A, Arya J, Azam S, Yahaya AA, Gill K, Hallan R, Hathaway C, Leptidis I, McDonagh L, Mitrasinovic S, Mushtaq N, Pang N, Peiris GB, Rinkoff S, Chan L, Christopher E, Farhan-Alanie MMH, Gonzalez-Ciscar A, Graham CJ, Lim H, McLean KA, Paterson HM, Rogers A, Roy C, Rutherford D, Smith F, Zubikarai G, Al-Khudairi R, Bamford M, Chang M, Cheng J, Hedley C, Joseph R, Mitchell B, Perera S, Rothwell L, Siddiqui A, Smith J, Taylor K, Wright OW, Baryan HK, Boyd G, Conchie H, Cox L, Davies J, Gardner S, Hill N, Krishna K, Lakin F, Scotcher S, Alberts J, Asad M, Barraclough J, Campbell A, Marshall D, Wakeford W, Cronbach P, D'Souza F, Gammeri E, Houlton J, Hall M, Kethees A, Patel R, Perera M, Prowle J, Shaid M, Webb E, Beattie S, Chadwick M, El-Taji O, Haddad S, Mann M, Patel M, Popat K, Rimmer L, Riyat H, Smith H, Anandarajah C, Cipparrone M, Desai K, Gao C, Goh ET, Howlader M, Jeffreys N, Karmarkar A, Mathew G, Mukhtar H, Ozcan E, Renukanthan A, Sarens N, Sinha C, Woolley A, Bogle R, Komolafe O, Loo F, Waugh D, Zeng R, Crewe A, Mathias J, Mills A, Owen A, Prior A, Saunders I, Baker A, Crilly L, McKeon J, Ubhi HK, Adeogun A, Carr R, Davison C, Devalia S, Hayat A, Karsan RB, Osborne C, Scott K, Weegenaar C, Wijeyaratne M, Babatunde F, Barnor-Ahiaku E, Beattie G, Chitsabesan P, Dixon O, Hall N, Ilenkovan N, Mackrell T, Nithianandasivam N, Orr J, Palazzo F, Saad M, Sandland-Taylor L, Sherlock J, Ashdown T, Chandler S, Garsaa T, Lloyd J, Loh SY, Ng S, Perkins C, Powell-Chandler A, Smith F, Underhill R. Perioperative intravenous contrast administration and the incidence of acute kidney injury after major gastrointestinal surgery: prospective, multicentre cohort study. Br J Surg 2020; 107:1023-1032. [PMID: 32026470 DOI: 10.1002/bjs.11453] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/21/2019] [Accepted: 11/08/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND This study aimed to determine the impact of preoperative exposure to intravenous contrast for CT and the risk of developing postoperative acute kidney injury (AKI) in patients undergoing major gastrointestinal surgery. METHODS This prospective, multicentre cohort study included adults undergoing gastrointestinal resection, stoma reversal or liver resection. Both elective and emergency procedures were included. Preoperative exposure to intravenous contrast was defined as exposure to contrast administered for the purposes of CT up to 7 days before surgery. The primary endpoint was the rate of AKI within 7 days. Propensity score-matched models were adjusted for patient, disease and operative variables. In a sensitivity analysis, a propensity score-matched model explored the association between preoperative exposure to contrast and AKI in the first 48 h after surgery. RESULTS A total of 5378 patients were included across 173 centres. Overall, 1249 patients (23·2 per cent) received intravenous contrast. The overall rate of AKI within 7 days of surgery was 13·4 per cent (718 of 5378). In the propensity score-matched model, preoperative exposure to contrast was not associated with AKI within 7 days (odds ratio (OR) 0·95, 95 per cent c.i. 0·73 to 1·21; P = 0·669). The sensitivity analysis showed no association between preoperative contrast administration and AKI within 48 h after operation (OR 1·09, 0·84 to 1·41; P = 0·498). CONCLUSION There was no association between preoperative intravenous contrast administered for CT up to 7 days before surgery and postoperative AKI. Risk of contrast-induced nephropathy should not be used as a reason to avoid contrast-enhanced CT.
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Hessey E, Perreault S, Roy L, Dorais M, Samuel S, Phan V, Lafrance JP, Zappitelli M. Acute kidney injury in critically ill children and 5-year hypertension. Pediatr Nephrol 2020; 35:1097-1107. [PMID: 32162099 DOI: 10.1007/s00467-020-04488-5] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/03/2020] [Accepted: 01/22/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND To develop a pediatric-specific hypertension algorithm using administrative data and use it to evaluate the association between acute kidney injury (AKI) in the intensive care unit (ICU) and hypertension diagnosis 5 years post-discharge. METHODS Two-center retrospective cohort study of children (≤ 18 years old) admitted to the pediatric ICU in Montreal, Canada, between 2003 and 2005 and followed until 2010. Patients with a valid healthcare number and without end-stage renal disease were included. Patients who could not be merged with the provincial database, did not survive admission, underwent cardiac surgery, had pre-existing renal disease associated with hypertension or a prior diagnosis of hypertension were excluded. AKI defined using the Kidney Disease: Improving Global Outcomes (KDIGO) definition. Using diagnostic codes and medications from administrative data, novel pediatric-specific hypertension definitions were designed. Both the evaluation of the prevalence of hypertension diagnosis and the association between AKI and hypertension occurred. RESULTS Nineteen hundred and seventy eight patients were included (median age at admission [interquartile range] 4.3 years [1.1-11.8], 44% female, 325 (16.4%) developed AKI). Of these patients, 130 (7%) had a hypertension diagnosis 5 years after discharge. Patients with AKI had a higher prevalence of hypertension diagnosis [non-AKI: 84/1653 (5.1%) vs. AKI: 46/325 (14.2%), p < .001]. Children with AKI had a higher adjusted risk of hypertension diagnosis (hazard ratio [95% confidence interval] 2.19 [1.47-3.26]). CONCLUSIONS Children admitted to the ICU have a high prevalence of hypertension post-discharge and children with AKI have over two times higher risk of hypertension compared to those with no AKI.
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Affiliation(s)
- Erin Hessey
- Department of Pediatrics, Division of Nephrology, Montreal Children's Hospital, McGill University Health Centre, Montreal, Québec, Canada.,Faculty of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Sylvie Perreault
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - Louise Roy
- Department of Medicine, Division of Nephrology, Université de Montréal, Montreal, Québec, Canada
| | - Marc Dorais
- StatSciences Inc, Notre-Dame-de-l'Île-Perrot, Québec, Canada
| | - Susan Samuel
- Department of Pediatrics, Division of Nephrology, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Véronique Phan
- Department of Pediatrics, Division of Nephrology, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Québec, Canada
| | - Jean-Philippe Lafrance
- Department of Medicine, Division of Nephrology, Hôpital Maisonneuve-Rosemont, Montreal, Québec, Canada.,Department of Pharmacology and Physiology, Université de Montréal, Montreal, Québec, Canada
| | - Michael Zappitelli
- Department of Pediatrics, Division of Nephrology, Montreal Children's Hospital, McGill University Health Centre, Montreal, Québec, Canada. .,Department of Pediatrics, Division of Nephrology, Hospital for Sick Children, Peter Gilgan Centre for Research and Learning, 686 Bay Street, 6th floor, Room 06.9708, Toronto, ON, M5G 0A4, Canada.
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11
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Dumont C, Mérouani A, Ducruet T, Benoit G, Clermont MJ, Lapeyraque AL, Phan V, Patey N. Clinical relevance of membrane attack complex deposition in children with IgA nephropathy and Henoch-Schönlein purpura. Pediatr Nephrol 2020; 35:843-850. [PMID: 31932958 DOI: 10.1007/s00467-019-04445-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 06/21/2019] [Revised: 11/26/2019] [Accepted: 12/03/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND IgA nephropathy (IgAN) and Henoch-Schönlein purpura are common glomerular disorders in children sharing the same histopathologic pattern of IgA deposits within the mesangium, even if their physiopathology may be different. Repeated exposure to pathogens induces the production of abnormal IgA1. The immune complex deposition in the renal mesangium in IgAN or potentially in small vessels in Henoch-Schönlein purpura induces complement activation via the alternative and lectin pathways. Recent studies suggest that levels of membrane attack complex (MAC) in the urine might be a useful indicator of renal injury. Because of the emerging availability of therapies that selectively block complement activation, the aim of the present study is to investigate whether MAC immunostaining might be a useful marker of IgA-mediated renal injury. METHODS We conducted immunohistochemistry analysis of the MAC on renal biopsies from 67 pediatric patients with IgAN and Henoch-Schönlein purpura. We classified their renal biopsies according to the Oxford classification, retrieved symptoms, biological parameters, treatment, and follow-up. RESULTS We found MAC expression was significantly related to impaired renal function and patients whose clinical course required therapy. MAC deposits tend to be more abundant in patients with decreased glomerular filtration rate (p = 0.02), patients with proteinuria > 0.750 g/day/1.73 m2, and with nephrotic syndrome. No correlation with histological alterations was observed. CONCLUSIONS We conclude that MAC deposition could be a useful additional indicator of renal injury in patients with IgAN and Henoch-Schönlein purpura, independent of other indicators.
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Affiliation(s)
- Camille Dumont
- Department of Pathology, CHU Sainte Justine, 3175 Chemin Côte Sainte Catherine, Montréal, Québec, H3T 1C5, Canada
| | - Aicha Mérouani
- Department of Nephrology, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Thierry Ducruet
- Applied Clinical Research Unit, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Geneviève Benoit
- Department of Nephrology, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Marie-Josée Clermont
- Department of Nephrology, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Anne Laure Lapeyraque
- Department of Nephrology, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Véronique Phan
- Department of Nephrology, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Natalie Patey
- Department of Pathology, CHU Sainte Justine, 3175 Chemin Côte Sainte Catherine, Montréal, Québec, H3T 1C5, Canada.
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12
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Hessey E, Morissette G, Lacroix J, Perreault S, Samuel S, Dorais M, Jouvet P, Lafrance JP, LeLorier J, Phan V, Palijan A, Pizzi M, Roy L, Zappitelli M. Long-term Mortality After Acute Kidney Injury in the Pediatric ICU. Hosp Pediatr 2019; 8:260-268. [PMID: 29712717 DOI: 10.1542/hpeds.2017-0215] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVES (1) To evaluate the association between acute kidney injury (AKI) in the PICU and long-term mortality and (2) to determine the extent to which adding the urine output (UO)-defined AKI alters the association. METHODS A 2-center retrospective cohort study of children (≤18 years old) admitted to the PICU between 2003 and 2005 for noncardiac surgery, with follow-up until 2010. Patients with end stage renal disease, no provincial health insurance number, who died during hospitalization, or could not be linked to administrative data were excluded. One hospitalization per patient was included. AKI was defined by using serum creatinine criteria and/or UO criteria. Mortality was ascertained by using administrative data. Cox regression analysis was performed to evaluate the association between AKI and long-term mortality. RESULTS The study population included 2041 patients (55.7% male, mean admission age 6.5 ± 5.8 years). Of 2041 hospital survivors, 9 (0.4%) died within 30 days, 51 (2.5%) died within 1 year, and 118 (5.8%) died within 5 to 7 years postdischarge. AKI was independently associated with 5- to 7-year mortality (adjusted hazard ratio [95% confidence interval]: 3.10 [1.46-6.57] and 3.38 [1.63-7.02], respectively). Including UO did not strengthen the association. CONCLUSIONS AKI is associated with 5- to 7-year mortality. Because this is an observational study we cannot determine if AKI is causative of mortality or of the pathophysiology. However, patients with AKI represent a high-risk group. It is reasonable that these patients be considered for targeted follow-up until future researchers better elucidate these relationships.
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Affiliation(s)
- Erin Hessey
- Division of Nephrology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, Canada
| | - Geneviève Morissette
- Pediatric Intensive Care Unit, Department of Pediatrics, Centre mère-enfant Soleil, Centre Hospitalier de l'Université Laval, Quebec, Canada
| | | | | | - Susan Samuel
- Division of Nephrology, Department of Pediatrics, Alberta Children's Hospital, Calgary, Canada
| | - Marc Dorais
- StatScience Inc, Notre-Dame-de-l'Île-Perrot, Quebec, Canada; and
| | | | - Jean-Philippe Lafrance
- Division of Nephrology, Department of Medicine, Hôpital Maisonneuve-Rosemont, Montreal, Canada.,Pharmacology and Physiology, Faculties of Medicine, and
| | | | - Véronique Phan
- Division of Nephrology, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Canada
| | - Ana Palijan
- Division of Nephrology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, Canada
| | - Michael Pizzi
- Division of Nephrology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, Canada
| | - Louise Roy
- Division of Nephrology, Departments of Medicine
| | - Michael Zappitelli
- Division of Nephrology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, Canada;
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Michaud V, Achille M, Chainey F, Phan V, Girardin C, Clermont MJ. Mixed-methods evaluation of a transition and young adult clinic for kidney transplant recipients. Pediatr Transplant 2019; 23:e13450. [PMID: 31062926 DOI: 10.1111/petr.13450] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 10/16/2018] [Revised: 03/07/2019] [Accepted: 04/01/2019] [Indexed: 01/13/2023]
Abstract
The aims of the present study were to describe the experiences of kidney transplant patients attending a young adult clinic or a regular adult clinic, to explore similarities and differences between the groups, and to conduct an evaluation of the clinical and psychosocial outcomes of the young adult clinic, by comparing these outcomes to those of the regular adult clinic. A mixed-methods design combining qualitative and quantitative data was used. Empirically validated questionnaires measuring self-determination theory variables, quality of life, and adherence were distributed to all consenting patients attending the YAC (n = 17) and RAC (n = 16). Semi-structured interviews were conducted with a subsample of the first (n = 10) and second group (n = 8), and analyzed using thematic analysis. Clinical outcomes were retrieved from medical records. Descriptive, correlational, and comparative analyses were performed. We found clinically significant differences on tacrolimus blood levels variability, self-reported adherence, and physical quality of life. Small and medium effect sizes were detected. No statistical differences were found. Statistically significant correlations were found between self-determination theory variables and both physical quality of life and different measures of adherence. Four themes characterized patients' experiences: resilience; relational needs and the therapeutic alliance; quest for balance; and quest for normalcy. The young adult clinic seems to meet its initial objectives and to make a difference particularly in the early period post-transition, but over time what matters most for patients is therapeutic alliance. Mental health issues need to be better addressed, and special attention should be paid to youths transplanted in an adult setting.
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Affiliation(s)
- Vanessa Michaud
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Marie Achille
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Fanie Chainey
- Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Véronique Phan
- Department of Pediatric Nephrology, CHU Sainte-Justine, Montreal, Quebec, Canada
| | - Catherine Girardin
- Department of Nephrology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec, Canada
| | - Marie-José Clermont
- Department of Pediatric Nephrology, CHU Sainte-Justine, Montreal, Quebec, Canada
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Penner R, Ionescu L, Mital S, Foster B, Birk P, Phan V, Blydt-Hansen T, Allen U, Hamiwka L, Morgan C, Urschel S. A Novel Tool to Quantify Immune Suppression after Pediatric Transplantation: Flow Cytometric Activation Assays. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Triolo TM, Fouts A, Pyle L, Yu L, Gottlieb PA, Steck AK, Greenbaum CJ, Atkinson M, Baidal D, Battaglia M, Becker D, Bingley P, Bosi E, Buckner J, Clements M, Colman P, DiMeglio L, Gitelman S, Goland R, Gottlieb P, Herold K, Knip M, Krischer J, Lernmark A, Moore W, Moran A, Muir A, Palmer J, Peakman M, Philipson L, Raskin P, Redondo M, Rodriguez H, Russell W, Spain L, Schatz D, Sosenko J, Wentworth J, Wherrett D, Wilson D, Winter W, Ziegler A, Anderson M, Antinozzi P, Benoist C, Blum J, Bourcier K, Chase P, Clare-Salzler M, Clynes R, Eisenbarth G, Fathman C, Grave G, Hering B, Insel R, Kaufman F, Kay T, Leschek E, Mahon J, Marks J, Nanto-Salonen K, Nepom G, Orban T, Parkman R, Pescovitz M, Peyman J, Pugliese A, Roep B, Roncarolo M, Savage P, Simell O, Sherwin R, Siegelman M, Skyler J, Steck A, Thomas J, Trucco M, Wagner J, Krischer JP, Leschek E, Rafkin L, Bourcier K, Cowie C, Foulkes M, Insel R, Krause-Steinrauf H, Lachin JM, Malozowski S, Peyman J, Ridge J, Savage P, Skyler JS, Zafonte SJ, Rafkin L, Sosenko JM, Kenyon NS, Santiago I, Krischer JP, Bundy B, Abbondondolo M, Dixit S, Pasha M, King K, Adcock H, Atterberry L, Fox K, Englert N, Mauras J, Permuy K, Sikes T, Adams T, Berhe B, Guendling L, McLennan L, Paganessi C, Murphy M, Draznin M, Kamboj S, Sheppard V, Lewis L, Coates W, Amado D, Moore G, Babar J, Bedard D, Brenson-Hughes J, Cernich M, Clements R, Duprau S, Goodman L, Hester L, Huerta-Saenz A, Asif I, Karmazin T, Letjen S, Raman D, Morin W, Bestermann E, Morawski J, White A, Brockmyer R, Bays S, Campbell A, Boonstra M, Stapleton N, Stone A, Donoho H, Everett H, Hensley M, Johnson C, Marshall N, Skirvin P, Taylor R, Williams L, Burroughs C, Ray C, Wolverton D, Nickels C, Dothard P, Speiser M, Pellizzari L, Bokor K, Izuora S, Abdelnour P, Cummings S, Cuthbertson D, Paynor M, Leahy M, Riedl S, Shockley R, Saad T, Briones S, Casella C, Herz K, Walsh J, Greening F, Deemer M, Hay S, Hunt N, Sikotra L, Simons D, Karounos R, Oremus L, Dye L, Myers D, Ballard W, Miers R, Eberhard C, Sparks K, Thraikill K, Edwards J, Fowlkes S, Kemp A, Morales L, Holland L, Johnson P, Paul A, Ghatak K, Fiske S, Phelen H, Leyland T, Henderson D, Brenner E, Oppenheimer I, Mamkin C, Moniz C, Clarson M, Lovell A, Peters V, Ford J, Ruelas D, Borut D, Burt M, Jordan S, Castilla P, Flores M, Ruiz L, Hanson J, Green-Blair R, Sheridan K, Garmeson J, Wintergerst G, Pierce A, Omoruyi M, Foster S, Kingery A, Lunsford I, Cervantes T, Parker P, Price J, Urben I, Guillette H, Doughty H, Haydock V, Parker P, Bergman S, Duncum C, Rodda A, Perelman R, Calendo C, Barrera E, Arce-Nunez Y, Geyer S, Martinez M, De la Portilla I, Cardenas L, Garrido M, Villar R, Lorini E, Calandra G, D’Annuzio K, Perri N, Minuto C, Hays B, Rebora R, Callegari O, Ali J, Kramer B, Auble S, Cabrera P, Donohoue R, Fiallo-Scharer M, Hessner P, Wolfgram A, Henderson C, Kansra N, Bettin R, McCuller A, Miller S, Accacha J, Corrigan E, Fiore R, Levine T, Mahoney C, Polychronakos V, Henry M, Gagne H, Starkman M, Fox D, Chin F, Melchionne L, Silverman I, Marshall L, Cerracchio J, Cruz A, Viswanathan J, Heyman K, Wilson S, Chalew S, Valley S, Layburn A, Lala P, Clesi M, Genet G, Uwaifo A, Charron T, Allerton W, Hsiao B, Cefalu L, Melendez-Ramirez R, Richards C, Alleyn E, Gustafson M, Lizanna J, Wahlen S, Aleiwe M, Hansen H, Wahlen C, Karges C, Levy A, Bonaccorso R, Rapaport Y, Tomer D, Chia M, Goldis L, Iazzetti M, Klein C, Levister L, Waldman E, Keaton N, Wallach M, Regelmann Z, Antal M, Aranda C, Reynholds A, Vinik P, Barlow M, Bourcier M, Nevoret J, Couper S, Kinderman A, Beresford N, Thalagne H, Roper J, Gibbons J, Hill S, Balleaut C, Brennan J, Ellis-Gage L, Fear T, Gray L, Law P, Jones C, McNerney L, Pointer N, Price K, Few D, Tomlinson N, Leech D, Wake C, Owens M, Burns J, Leinbach A, Wotherspoon A, Murray K, Short G, Curry S, Kelsey J, Lawson J, Porter S, Stevens E, Thomson S, Winship L, Liu S, Wynn E, Wiltshire J, Krebs P, Cresswell H, Faherty C, Ross L, Denvir J, Drew T, Randell P, Mansell S, Lloyd J, Bell S, Butler Y, Hooton H, Navarra A, Roper G, Babington L, Crate H, Cripps A, Ledlie C, Moulds R, Malloy J, Norton B, Petrova O, Silkstone C, Smith K, Ghai M, Murray V, Viswanathan M, Henegan O, Kawadry J, Olson L, Maddox K, Patterson T, Ahmad B, Flores D, Domek S, Domek K, Copeland M, George J, Less T, Davis M, Short A, Martin J, Dwarakanathan P, O’Donnell B, Boerner L, Larson M, Phillips M, Rendell K, Larson C, Smith K, Zebrowski L, Kuechenmeister M, Miller J, Thevarayapillai M, Daniels H, Speer N, Forghani R, Quintana C, Reh A, Bhangoo P, Desrosiers L, Ireland T, Misla C, Milliot E, Torres S, Wells J, Villar M, Yu D, Berry D, Cook J, Soder A, Powell M, Ng M, Morrison Z, Moore M, Haslam M, Lawson B, Bradley J, Courtney C, Richardson C, Watson E, Keely D, DeCurtis M, Vaccarcello-Cruz Z, Torres K, Muller S, Sandberg H, Hsiang B, Joy D, McCormick A, Powell H, Jones J, Bell S, Hargadon S, Hudson M, Kummer S, Nguyen T, Sauder E, Sutton K, Gensel R, 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Manning G, Hendry B, Taylor S, Jones W, Strader M, Bencomo T, Bailey L, Bedolla C, Roldan C, Moudiotis B, Vaidya C, Anning S, Bunce S, Estcourt E, Folland E, Gordon C, Harrill J, Ireland J, Piper L, Scaife K, Sutton S, Wilkins M, Costelloe J, Palmer L, Casas C, Miller M, Burgard C, Erickson J, Hallanger-Johnson P, Clark W, Taylor A, Lafferty S, Gillett C, Nolan M, Pathak L, Sondrol T, Hjelle S, Hafner J, Kotrba R, Hendrickson A, Cemeroglu T, Symington M, Daniel Y, Appiagyei-Dankah D, Postellon M, Racine L, Kleis K, Barnes S, Godwin H, McCullough K, Shaheen G, Buck L, Noel M, Warren S, Weber S, Parker I, Gillespie B, Nelson C, Frost J, Amrhein E, Moreland A, Hayes J, Peggram J, Aisenberg M, Riordan J, Zasa E, Cummings K, Scott T, Pinto A, Mokashi K, McAssey E, Helden P, Hammond L, Dinning S, Rahman S, Ray C, Dimicri S, Guppy H, Nielsen C, Vogel C, Ariza L, Morales Y, Chang R, Gabbay L, Ambrocio L, Manley R, Nemery W, Charlton P, Smith L, Kerr B, Steindel-Kopp M, Alamaguer D, Liljenquist G, Browning T, Coughenour M, Sulk E, Tsalikan M, Tansey J, Cabbage N. Identical and Nonidentical Twins: Risk and Factors Involved in Development of Islet Autoimmunity and Type 1 Diabetes. Diabetes Care 2019; 42:192-199. [PMID: 30061316 PMCID: PMC6341285 DOI: 10.2337/dc18-0288] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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] [Received: 02/07/2018] [Accepted: 06/28/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE There are variable reports of risk of concordance for progression to islet autoantibodies and type 1 diabetes in identical twins after one twin is diagnosed. We examined development of positive autoantibodies and type 1 diabetes and the effects of genetic factors and common environment on autoantibody positivity in identical twins, nonidentical twins, and full siblings. RESEARCH DESIGN AND METHODS Subjects from the TrialNet Pathway to Prevention Study (N = 48,026) were screened from 2004 to 2015 for islet autoantibodies (GAD antibody [GADA], insulinoma-associated antigen 2 [IA-2A], and autoantibodies against insulin [IAA]). Of these subjects, 17,226 (157 identical twins, 283 nonidentical twins, and 16,786 full siblings) were followed for autoantibody positivity or type 1 diabetes for a median of 2.1 years. RESULTS At screening, identical twins were more likely to have positive GADA, IA-2A, and IAA than nonidentical twins or full siblings (all P < 0.0001). Younger age, male sex, and genetic factors were significant factors for expression of IA-2A, IAA, one or more positive autoantibodies, and two or more positive autoantibodies (all P ≤ 0.03). Initially autoantibody-positive identical twins had a 69% risk of diabetes by 3 years compared with 1.5% for initially autoantibody-negative identical twins. In nonidentical twins, type 1 diabetes risk by 3 years was 72% for initially multiple autoantibody-positive, 13% for single autoantibody-positive, and 0% for initially autoantibody-negative nonidentical twins. Full siblings had a 3-year type 1 diabetes risk of 47% for multiple autoantibody-positive, 12% for single autoantibody-positive, and 0.5% for initially autoantibody-negative subjects. CONCLUSIONS Risk of type 1 diabetes at 3 years is high for initially multiple and single autoantibody-positive identical twins and multiple autoantibody-positive nonidentical twins. Genetic predisposition, age, and male sex are significant risk factors for development of positive autoantibodies in twins.
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Affiliation(s)
- Taylor M. Triolo
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Alexandra Fouts
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Laura Pyle
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Liping Yu
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Peter A. Gottlieb
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Andrea K. Steck
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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Hessey E, Morissette G, Lacroix J, Perreault S, Samuel S, Dorais M, Phan V, Jouvet P, Lafrance JP, LeLorier J, Palijan A, Pizzi M, Roy L, Zappitelli M. Healthcare Utilization after Acute Kidney Injury in the Pediatric Intensive Care Unit. Clin J Am Soc Nephrol 2018; 13:685-692. [PMID: 29678895 PMCID: PMC5969475 DOI: 10.2215/cjn.09350817] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [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: 08/26/2017] [Accepted: 01/26/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND OBJECTIVES Little is known about the long-term burden of AKI in the pediatric intensive care unit. We aim to evaluate if pediatric AKI is associated with higher health service use post-hospital discharge. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This is a retrospective cohort study of children (≤18 years old) admitted to two tertiary centers in Montreal, Canada. Only the first admission per patient was included. AKI was defined in two ways: serum creatinine alone or serum creatinine and/or urine output. The outcomes were 30-day, 1-year, and 5-year hospitalizations, emergency room visits, and physician visits per person-time using provincial administrative data. Univariable and multivariable Poisson regression were used to evaluate AKI associations with outcomes. RESULTS A total of 2041 children were included (56% male, mean admission age 6.5±5.8 years); 299 of 1575 (19%) developed AKI defined using serum creatinine alone, and when urine output was included in the AKI definition 355 of 1622 (22%) children developed AKI. AKI defined using serum creatinine alone and AKI defined using serum creatinine and urine output were both associated with higher 1- and 5-year hospitalization risk (AKI by serum creatinine alone adjusted relative risk, 1.42; 95% confidence interval, 1.12 to 1.82; and 1.80; 1.54 to 2.11, respectively [similar when urine output was included]) and higher 5-year physician visits (adjusted relative risk, 1.26; 95% confidence interval, 1.14 to 1.39). AKI was not associated with emergency room use after adjustments. CONCLUSIONS AKI is independently associated with higher hospitalizations and physician visits postdischarge.
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Affiliation(s)
- Erin Hessey
- Due to the number of contributing authors, the affiliations are provided in the Supplemental Material
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17
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O’Connor E, Phan V, Cairns G, Cordts I, Hettwer S, Roos A, Lochmuller H. Testing a novel therapy in a MYO9A-related Congenital Myasthenic Syndrome zebrafish model. Neuromuscul Disord 2018. [DOI: 10.1016/s0960-8966(18)30371-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Hessey E, Ali R, Dorais M, Morissette G, Pizzi M, Rink N, Jouvet P, Lacroix J, Phan V, Zappitelli M. Evaluation of height-dependent and height-independent methods of estimating baseline serum creatinine in critically ill children. Pediatr Nephrol 2017; 32:1953-1962. [PMID: 28523356 DOI: 10.1007/s00467-017-3670-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [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: 02/09/2017] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Baseline serum creatinine (bSCr) is required for diagnosing acute kidney injury (AKI). In children, bSCr is commonly defined as the lowest measurement within 3 months of admission. Measured values are often missing and estimating bSCr using height-based glomerular filtration rate (GFR) equations is problematic when height is unavailable. METHODS This is a retrospective cohort study including 538 children admitted to the intensive care unit (ICU) between 2003 and 2005 at two centers in Canada, with measured bSCr, height, and ICU-SCr values. We evaluated the bias, accuracy, and precision of back-calculating bSCr from height-dependent and height-independent GFR equations. Agreement of AKI defined using measured and estimated bSCr was calculated. Multivariate analyses were performed to assess the impact of bSCr estimation methods on the association between AKI and ICU mortality, length of stay, and duration of mechanical ventilation. RESULTS Both methods underestimated bSCr by 1-3%, showed good accuracy (∼30% of patients with estimated bSCr within 10% of measured bSCr), but poor precision (wide 95% limits of agreement). The agreement between AKI defined by estimated versus measured bSCr was >80% (κ >0.5). The height-independent method performed best in children >13 years old; however, overall, both methods performed similarly across age subgroups. AKI was associated with longer stay, prolonged mechanical ventilation, and ICU mortality using measured and estimated bSCr. CONCLUSIONS Height-dependent and height-independent bSCr estimation methods were comparable. This may have significant implications for performing pediatric AKI research using large databases, and in clinical care to define AKI when height is unknown.
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Affiliation(s)
- Erin Hessey
- Department of Pediatrics, Division of Nephrology, Montreal Children's Hospital, McGill University Health Centre, 1001 Blvd Decarie, Room BRC.6168, Montreal, QC, H4A 3J1, Canada
| | - Rami Ali
- Department of Family Medicine, GMF Centre Medical Hochelaga, Montreal, QC, Canada.,Department of Family-Emergency Medicine, Hôpital Général de Hawkesbury and District General Hospital Inc, Hawkesbury, ON, Canada
| | - Marc Dorais
- StatScience Inc, Notre-Dame-de-l'Île-Perrot, QC, Canada
| | - Geneviève Morissette
- Department of Pediatrics, Pediatric Intensive Care unit, Centre mère-enfant Soleil, Centre Hospitalier de l'Université Laval, Quebec, QC, Canada
| | - Michael Pizzi
- Department of Pediatrics, Division of Nephrology, Montreal Children's Hospital, McGill University Health Centre, 1001 Blvd Decarie, Room BRC.6168, Montreal, QC, H4A 3J1, Canada
| | - Nikki Rink
- Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada
| | - Philippe Jouvet
- Department of Pediatrics, Pediatric Intensive Care Unit, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC, Canada
| | - Jacques Lacroix
- Department of Pediatrics, Pediatric Intensive Care Unit, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC, Canada
| | - Véronique Phan
- Department of Pediatrics, Division of Nephrology, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC, Canada
| | - Michael Zappitelli
- Department of Pediatrics, Division of Nephrology, Montreal Children's Hospital, McGill University Health Centre, 1001 Blvd Decarie, Room BRC.6168, Montreal, QC, H4A 3J1, Canada.
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Roos A, Topf A, Phan V, Gonzalez Coraspe J, Hauessler M, Weis J, Lochmüller H, Kohlschmidt N. Insights into the genesis of a brain and muscle disorder caused by a novel mutation in MICU1. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Alvarez F, Atkinson S, Bouchard M, Brunel-Guitton C, Buhas D, Bussières JF, Dubois J, Fenyves D, Goodyer P, Gosselin M, Halac U, Labbé P, Laframboise R, Maranda B, Melançon S, Merouani A, Mitchell GA, Mitchell J, Parizeault G, Pelletier L, Phan V, Turcotte JF. The Québec NTBC Study. Adv Exp Med Biol 2017; 959:187-195. [PMID: 28755196 DOI: 10.1007/978-3-319-55780-9_17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this chapter we describe the current Quebec NTBC Study protocol. Quebec's unique characteristics have influenced the development of the protocol, including a high prevalence of hepatorenal tyrosinemia (HT1), universal newborn screening for HT1, availability of treatment with nitisinone (NTBC) and special diet, a large territory, where HT1 treatment is coordinated by a small number of centers. Screened newborns are seen within 3 weeks of birth. Patients with liver dysfunction (prolonged prothrombin time and/or international normalized ratio (INR) provide sensitive, rapidly available indicators) are treated by NTBC and special diet. The specific diagnosis is confirmed by diagnostic testing for succinylacetone (SA) in plasma and urine samples obtained before treatment. After an initial period of frequent surveillance, stable patients are followed every 3 months by assay of plasma amino acids and NTBC and plasma and urine SA. Abdominal ultrasound is done every 6 months. Patients have an annual visit to the coordinating center that includes multidisciplinary evaluations in metabolic genetics, hepatology, imaging (for abdominal ultrasound and magnetic resonance imaging) and other specialties as necessary. If hepatocellular carcinoma is suspected by imaging and/or because of progressive elevation of alphafetoprotein, liver transplantation is discussed. To date, no patient in whom treatment was started before 1 month of age has developed hepatocellular carcinoma, after surveillance for up to 20 years in some. This patient group is the largest in the world that has been treated rapidly following newborn screening. The protocol continues to evolve to adapt to the challenges of long term surveillance.
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Affiliation(s)
- Fernando Alvarez
- Service de gastroentérologie, hépatologie et nutrition, CHU Sainte-Justine, Université de Montréal, 3175 chemin Côte-Sainte-Catherine, Montréal, Québec, H3T 1C5, Canada
| | - Suzanne Atkinson
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Manon Bouchard
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Catherine Brunel-Guitton
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Daniela Buhas
- Department of Genetics (DB, SM) and Divisions of Endocrinology (JM) and Nephrology (PG), Department of Pediatrics, Montreal Children's Hospital, McGill University, Montreal, Canada
| | - Jean-François Bussières
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Josée Dubois
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Daphna Fenyves
- Division of Hepatology, Department of Internal Medicine, CHUM, Université de Montréal (DF), Montreal, Canada
| | - Paul Goodyer
- Department of Genetics (DB, SM) and Divisions of Endocrinology (JM) and Nephrology (PG), Department of Pediatrics, Montreal Children's Hospital, McGill University, Montreal, Canada
| | - Martyne Gosselin
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Ugur Halac
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, CHU Sainte-Justine and Research Center, Université de Montréal, Montreal, QC, Canada
| | - Patrick Labbé
- Departments of Pediatrics (GP) and Internal Medicine (PL), Hopital de Chicoutimi, Chicoutimi, Québec, Canada
| | - Rachel Laframboise
- Divisions of Medical Genetics (RL), Gastroenterology (LP) and General Pediatrics (JFT), Department of Pediatrics, Université Laval, Québec, Canada
| | - Bruno Maranda
- Department of Medical Genetics, Centre Hospitalier Universitaire de Sherbrooke and Université de Sherbrooke, Sherbrooke, Québec (BM), Canada
| | - Serge Melançon
- Department of Genetics (DB, SM) and Divisions of Endocrinology (JM) and Nephrology (PG), Department of Pediatrics, Montreal Children's Hospital, McGill University, Montreal, Canada
| | - Aicha Merouani
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Grant A Mitchell
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada.
| | - John Mitchell
- Department of Genetics (DB, SM) and Divisions of Endocrinology (JM) and Nephrology (PG), Department of Pediatrics, Montreal Children's Hospital, McGill University, Montreal, Canada
| | - Guy Parizeault
- Departments of Pediatrics (GP) and Internal Medicine (PL), Hopital de Chicoutimi, Chicoutimi, Québec, Canada
| | - Luc Pelletier
- Divisions of Medical Genetics (RL), Gastroenterology (LP) and General Pediatrics (JFT), Department of Pediatrics, Université Laval, Québec, Canada
| | - Véronique Phan
- Departments of Nutrition (MB) and Radiology (JD), Divisions of Gastroenterology, Hepatology and Nutrition (FA, UH), Medical Genetics (CBG, MG, GAM) and Nephrology (AM, VP), Department of Pediatrics and Department of Pharmacy (SA, JFB), CHU Sainte-Justine and Université de Montréal, Montreal, Canada
| | - Jean-François Turcotte
- Divisions of Medical Genetics (RL), Gastroenterology (LP) and General Pediatrics (JFT), Department of Pediatrics, Université Laval, Québec, Canada
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Raffa RB, Burdge G, Gambrah J, Kinecki HE, Lin F, Lu B, Nguyen JT, Phan V, Ruan A, Sesay MA, Watkins TN. Cebranopadol: novel dual opioid/NOP receptor agonist analgesic. J Clin Pharm Ther 2016; 42:8-17. [DOI: 10.1111/jcpt.12461] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 09/05/2016] [Indexed: 12/13/2022]
Affiliation(s)
- R. B. Raffa
- Temple University School of Pharmacy; Philadelphia PA USA
- University of Arizona College of Pharmacy; Tucson AZ USA
| | - G. Burdge
- Temple University School of Pharmacy; Philadelphia PA USA
| | - J. Gambrah
- Temple University School of Pharmacy; Philadelphia PA USA
| | - H. E. Kinecki
- Temple University School of Pharmacy; Philadelphia PA USA
| | - F. Lin
- Temple University School of Pharmacy; Philadelphia PA USA
| | - B. Lu
- Temple University School of Pharmacy; Philadelphia PA USA
| | - J. T. Nguyen
- Temple University School of Pharmacy; Philadelphia PA USA
| | - V. Phan
- Temple University School of Pharmacy; Philadelphia PA USA
| | - A. Ruan
- Temple University School of Pharmacy; Philadelphia PA USA
| | - M. A. Sesay
- Temple University School of Pharmacy; Philadelphia PA USA
| | - T. N. Watkins
- Temple University School of Pharmacy; Philadelphia PA USA
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22
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Ochs L, Cattabriga G, Tu C, Pagnucco M, Shah N, Bolinaga J, Endacot K, Kim J, Phan V. Prescribing Patterns and Use of Pain Medications in Women Following Orthopedic Surgical Procedures. Res Social Adm Pharm 2014. [DOI: 10.1016/j.sapharm.2014.07.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Littman E, Phan V, Harris D, Severino M, Barton A, La A. Can mean ovarian volume be a predictor for embryo aneuploidy rate? Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.1139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Phan V, Blydt-Hansen T, Feber J, Alos N, Arora S, Atkinson S, Bell L, Clarson C, Couch R, Cummings EA, Filler G, Grant RM, Grimmer J, Hebert D, Lentle B, Ma J, Matzinger M, Midgley J, Pinsk M, Rodd C, Shenouda N, Stein R, Stephure D, Taback S, Williams K, Rauch F, Siminoski K, Ward LM. Skeletal findings in the first 12 months following initiation of glucocorticoid therapy for pediatric nephrotic syndrome. Osteoporos Int 2014; 25:627-37. [PMID: 23948876 PMCID: PMC4100956 DOI: 10.1007/s00198-013-2466-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 05/01/2013] [Accepted: 07/16/2013] [Indexed: 02/08/2023]
Abstract
UNLABELLED Incident vertebral fractures and lumbar spine bone mineral density (BMD) were assessed in the 12 months following glucocorticoid initiation in 65 children with nephrotic syndrome. The incidence of vertebral fractures was low at 12 months (6 %) and most patients demonstrated recovery in BMD Z-scores by this time point. INTRODUCTION Vertebral fracture (VF) incidence following glucocorticoid (GC) initiation has not been previously reported in pediatric nephrotic syndrome. METHODS VF was assessed on radiographs (Genant method); lumbar spine bone mineral density (LS BMD) was evaluated by dual-energy X-ray absorptiometry. RESULTS Sixty-five children were followed to 12 months post-GC initiation (median age, 5.4 years; range, 2.3-17.9). Three of 54 children with radiographs (6 %; 95 % confidence interval (CI), 2-15 %) had incident VF at 1 year. The mean LS BMD Z-score was below the healthy average at baseline (mean ± standard deviation (SD), -0.5 ± 1.1; p = 0.001) and at 3 months (-0.6 ± 1.1; p < 0.001), but not at 6 months (-0.3 ± 1.3; p = 0.066) or 12 months (-0.3 ± 1.2; p = 0.066). Mixed effect modeling showed a significant increase in LS BMD Z-scores between 3 and 12 months (0.22 SD; 95 % CI, 0.08 to 0.36; p = 0.003). A subgroup (N = 16; 25 %) had LS BMD Z-scores that were ≤-1.0 at 12 months. In these children, each additional 1,000 mg/m(2) of GC received in the first 3 months was associated with a decrease in LS BMD Z-score by 0.39 at 12 months (95 % CI, -0.71 to -0.07; p = 0.017). CONCLUSIONS The incidence of VF at 1 year was low and LS BMD Z-scores improved by 12 months in the majority. Twenty-five percent of children had LS BMD Z-scores ≤-1.0 at 12 months. In these children, LS BMD Z-scores were inversely associated with early GC exposure, despite similar GC exposure compared to the rest of the cohort.
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Affiliation(s)
- V Phan
- Université de Montréal, Montréal, QC, Canada
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Lapeyraque AL, Kassir N, Théorêt Y, Krajinovic M, Clermont MJ, Litalien C, Phan V. Conversion from twice- to once-daily tacrolimus in pediatric kidney recipients: a pharmacokinetic and bioequivalence study. Pediatr Nephrol 2014; 29:1081-8. [PMID: 24435759 PMCID: PMC4000411 DOI: 10.1007/s00467-013-2724-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 08/14/2013] [Revised: 11/29/2013] [Accepted: 12/04/2013] [Indexed: 12/31/2022]
Abstract
BACKGROUND The objectives of this study were to investigate pharmacokinetic and pharmacogenetic parameters during the conversion on a 1:1 (mg:mg) basis from a twice-daily (Prograf) to once-daily (Advagraf) tacrolimus formulation in pediatric kidney transplant recipients. METHODS Twenty-four-hour pharmacokinetic profiles were analyzed before and after conversion in 19 stable renal transplant recipients (age 7-19 years). Tacrolimus pharmacokinetic parameters [area under the concentration-time curve (AUC0-24), minimum whole-blood concentration (Cmin), maximum whole-blood concentration (Cmax), and time to achieve maximum whole-blood concentration (tmax)] were compared between Tac formulations and between CYP3A5 and MDR1 genotypes after dose normalization. RESULTS Both AUC0-24 and Cmin decreased after conversion (223.3 to 197.5 ng.h/ml and 6.5 to 5.6 ng/ml; p = 0.03 and 0.01, respectively). However, the ratio of the least square means (LSM) for AUC0-24 was 90.8 %, with 90 % CI limits of 85.3 to 96.7 %, falling within bioequivalence limits. The CYP3A5 genotype influences the dose-normalized Cmin with the twice-daily formulation only. CONCLUSIONS Both tacrolimus formulations are bioequivalent in pediatric renal recipients. However, we observed a decrease in AUC0-24 and Cmin after the conversion, requiring close pharmacokinetic monitoring during the conversion period.
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Affiliation(s)
- Anne-Laure Lapeyraque
- Service de Néphrologie, Département de Pédiatrie, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada,
| | - Nastya Kassir
- Département de Pharmacie, Université de Montréal, Montréal, Canada
| | - Yves Théorêt
- Service de Néphrologie, Département de Pédiatrie, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada ,Unité de Pharmacologie Clinique, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada
| | - Maja Krajinovic
- Unité de Pharmacologie Clinique, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada
| | - Marie-José Clermont
- Service de Néphrologie, Département de Pédiatrie, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada
| | - Catherine Litalien
- Unité de Pharmacologie Clinique, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada
| | - Véronique Phan
- Service de Néphrologie, Département de Pédiatrie, CHU de Sainte-Justine, Université de Montréal, Montréal, Canada
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Popescu CR, Sutherland MR, Cloutier A, Benoît G, Bertagnolli M, Yzydorczyk C, Germain N, Phan V, Lelièvre-Pegorier M, Sartelet H, Nuyt AM. Hyperoxia exposure impairs nephrogenesis in the neonatal rat: role of HIF-1α. PLoS One 2013; 8:e82421. [PMID: 24358181 PMCID: PMC3866112 DOI: 10.1371/journal.pone.0082421] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [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] [Received: 12/12/2012] [Accepted: 11/01/2013] [Indexed: 01/09/2023] Open
Abstract
Preterm neonates are exposed at birth to high oxygen concentrations relative to the intrauterine environment. We have previously shown in a rat model that a hyperoxic insult results in a reduced nephron number in adulthood. Therefore, the aim of this study was to determine the effects of transient neonatal hyperoxia exposure on nephrogenesis. Sprague-Dawley rat pups were raised in 80% O2 or room air from P3 to P10. Pups (n = 12/group, 6 males and 6 females) were sacrificed at P5 (during active nephrogenesis) and at P10 (after the completion of nephrogenesis). Hyperoxia exposure resulted in a significant reduction in both nephrogenic zone width and glomerular diameter at P5, and a significantly increased apoptotic cell count; however, nephron number at P10 was not affected. HIF-1α expression in the developing kidney was significantly reduced following hyperoxia exposure. Systemic administration of the HIF-1α stabilizer dimethyloxalylglycine (DMOG) resulted in enhanced expression of HIF-1α and improved nephrogenesis: kidneys from hyperoxia-exposed pups treated with DMOG exhibited a nephrogenic zone width and glomerular diameter similar to room-air controls. These findings demonstrate that neonatal hyperoxia exposure results in impaired nephrogenesis, which may be at least in part HIF-1α-mediated. Although nephron number was not significantly reduced at the completion of nephrogenesis, early indicators of maldevelopment suggest the potential for accelerated nephron loss in adulthood. Overall, this study supports the premise that prematurely born neonates exposed to high oxygen levels after birth are vulnerable to impaired renal development.
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Affiliation(s)
- Constantin R. Popescu
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Megan R. Sutherland
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Anik Cloutier
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Geneviève Benoît
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Mariane Bertagnolli
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Catherine Yzydorczyk
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Nathalie Germain
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Véronique Phan
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Martine Lelièvre-Pegorier
- INSERM U872, Centre de Recherche des Cordeliers, Université Pierre et Marie Curie – Paris 6, and Université Paris Descartes UMR S 872, Paris, France
| | - Hervé Sartelet
- Sainte-Justine University Hospital and Research Center, and the Department of Pathology, Université de Montréal, Montreal, Quebec, Canada
| | - Anne Monique Nuyt
- Sainte-Justine University Hospital and Research Center, and the Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
- * E-mail:
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Phan V, Littman E, Harris D, Severino M, La A. Can day 3 serum follicle stimulating hormone be a predictor for embryo aneuploidy rate? Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Littman E, Phan V, Harris D, Severino M, La A. Blastocysts formed on day 5 have more chance to be euploid. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Leung M, Phan V, Leung DY. Diastolic reserve is an independent predictor of exercise capacity. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Leung M, Phan V, Leung DY. Impaired diastolic reserve as an early marker of diabetic cardiomyopathy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lugasi T, Achille M, Blydt-Hansen T, Clermont MJ, Geoffroy L, Legault L, Phan V, Bell LE. Assessment of identity and quality of life in diabetic and renal transplant adolescents in comparison to healthy adolescents. J Clin Psychol Med Settings 2013; 20:361-72. [PMID: 23645186 DOI: 10.1007/s10880-012-9344-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Identity development represents a central task of adolescence. Identity achievement is characterized by a coherent sense of who one is following a period of exploration and can help navigate the challenges of adulthood. This study examined identity within a quality of life (QOL) context in 85 adolescents with a renal transplant or with Type 1 diabetes in comparison to 90 healthy controls. Results revealed significant differences in ideological identity, with patients showing higher levels of diffusion and controls showing higher levels of foreclosure. No differences with respect to interpersonal identity, QOL, perceived control over the QOL domains, and perceived opportunities for growth and development were found. Future research should assess identity and QOL over a longer period of time to determine whether differences between chronically ill and healthy young adults can be detected.
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Affiliation(s)
- Tziona Lugasi
- Department of Psychology, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montreal, QC, H3C 3J7, Canada.
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Siminoski K, Lee KC, Abish S, Alos N, Bell L, Blydt-Hansen T, Couch R, Cummings EA, Ellsworth J, Feber J, Fernandez CV, Halton J, Huber AM, Israels S, Jurencak R, Lang B, Laverdière C, LeBlanc C, Lewis V, Midgley J, Miettunen PM, Oen K, Phan V, Pinsk M, Rauch F, Rodd C, Roth J, Saint-Cyr C, Scuccimarri R, Stephure D, Taback S, Wilson B, Ward LM. The development of bone mineral lateralization in the arms. Osteoporos Int 2013; 24:999-1006. [PMID: 22744715 PMCID: PMC4105250 DOI: 10.1007/s00198-012-2054-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 04/20/2012] [Accepted: 05/08/2012] [Indexed: 01/04/2023]
Abstract
UNLABELLED Bone mineral content (BMC) is known to be greater in the dominant arm after the age of 8 years. We studied a group of children and found that BMC sidedness gradually increased up to the age of 6 years and then remained stable into late adolescence. INTRODUCTION Bone mineral content (BMC) exhibits sidedness in the arms after the age of 8 years, but it is not known whether BMC is greater in the dominant arm from birth or whether lateralization develops in early childhood. To address this, we examined bone mineral status in relation to handedness and age. METHODS Subjects (N = 158) were children recently initiating glucocorticoids for underlying disease (leukemia 43 %, rheumatic conditions 39 %, nephrotic syndrome 18 %). Handedness was determined by questionnaire and BMC by dual-energy X-ray absorptiometry. RESULTS Median age was 7.2 years (range, 1.5 to 17.0 years), 49 % was male, and the spine BMD Z-score was -0.9 (SD, 1.3). By linear regression, BMC sidedness in the arms was significantly related to age (r = 0.294, p = 0.0005). Breakpoint analysis revealed two lines with a knot at 6.0 years (95 % CI, 4.5-7.5 years). The formula for the first line was: dominant:nondominant arm BMC ratio = 0.029 × age [in years] + 0.850 (r = 0.323, p = 0.017). The slope of the second line was not different from 0 (p = 0.332), while the slopes for the two lines were significantly different (p = 0.027). CONCLUSIONS These results show that arm BMC sidedness in this patient group develops up to age 6 years and then remains stable into late adolescence. This temporal profile is consistent with mechanical stimulation of the skeleton in response to asymmetrical muscle use as handedness becomes manifest.
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Affiliation(s)
- K Siminoski
- University of Alberta, 6628-123 Street, Edmonton, Alberta, Canada T6H 3T6.
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Nguyen C, Côté J, Lebel D, Caron E, Genest C, Mallet M, Phan V, Bussières JF. The AMÉLIE project: failure mode, effects and criticality analysis: a model to evaluate the nurse medication administration process on the floor. J Eval Clin Pract 2013; 19:192-9. [PMID: 22151584 DOI: 10.1111/j.1365-2753.2011.01799.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 11/30/2022]
Abstract
OBJECTIVE The objective of this article was to critically evaluate the causes of adverse drug events during the nurse medication administration process in paediatric care units in order to identify and prioritize interventions that need to be implemented. METHODOLOGY This is a failure mode, effects and criticality analysis (FMECA) study. A multidisciplinary committee composed of nurses, pharmacists, physicians and risk managers evaluated through consensus the process of administering medications at the Centre hospitalier universitaire de Sainte-Justine. By mapping the process, all the failure modes were identified and associated with at least one cause each. Using a summary grid, each failure mode was evaluated by rating frequency (from 1 to 9), likelihood of failure detection (from 0 to 100%) and severity (from 1 to 9) using adapted versions of already published scales. RESULTS A 10-member committee was set up, and it met eight times between January and April 2010. In the two specialized paediatric units selected (n = 38 beds), an average number of approximately 20 000 drug doses was administered monthly from about 400 non-proprietary names. Through consensus, the committee identified 16 processes and 53 failure modes. While frequency and severity were based on perceptions that could be objectivized with local data and scientific documentation, the likelihood of detection was mainly based on individual perception. CONCLUSION FMECA is a useful approach to improve the medication process.
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Robitaille P, Clermont MJ, Mérouani A, Phan V, Lapeyraque AL. Hemolytic uremic syndrome: late renal injury and changing incidence-a single centre experience in Canada. Scientifica (Cairo) 2012; 2012:341860. [PMID: 24278685 PMCID: PMC3820622 DOI: 10.6064/2012/341860] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Accepted: 12/18/2012] [Indexed: 06/02/2023]
Abstract
Aims. To assess trends in the incidence of pediatric diarrhea-associated hemolytic uremic syndrome (D(+) HUS) and document long-term renal sequelae. Methods. We conducted a retrospective cohort study of children with D(+) HUS admitted to a tertiary care pediatric hospital in Montreal, Canada, from 1976 to 2010. In 2010, we recontacted patients admitted before 2000. Results. Of 337 cases, median age at presentation was 3.01 years (range 0.4-14). Yearly incidence peaked in 1988 and 1994-95, returning to near-1977 levels since 2003. Twelve patients (3.6%) died and 19 (5.6%) experienced long-term renal failure. Almost half (47%) The patients required dialysis. Need for dialysis was the best predictor of renal sequelae, accounting for 100% of severe complications. Of children followed ≥1 year (n = 199, mean follow-up 8.20 ± 6.78 years), 19 had severe and 18 mild-to-moderate kidney injury, a total sequelae rate, of 18.6%. Ten years or more after-HUS (n = 85, mean follow-up 15.4 ± 5.32 years), 8 (9.4%) patients demonstrated serious complications and 22 (25.9%) mild-to-moderate, including 14 (16%) microalbuminuria: total sequelae, 35.3%. Conclusions. Patients with D(+) HUS should be monitored at least 5 years, including microalbuminuria testing, especially if dialysis was required. The cause of the declining incidence of D(+)HUS is elusive. However, conceivably, improved public health education may have played an important role in the prevention of food-borne disease.
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Affiliation(s)
- Pierre Robitaille
- Division of Nephrology, Department of Pediatrics and Sainte-Justine Hospital (CHU Sainte-Justine), University of Montreal, 3175 Côte Ste-Catherine, Montreal, QC, Canada H3T 1C5
| | - Marie-José Clermont
- Division of Nephrology, Department of Pediatrics and Sainte-Justine Hospital (CHU Sainte-Justine), University of Montreal, 3175 Côte Ste-Catherine, Montreal, QC, Canada H3T 1C5
| | - Aïcha Mérouani
- Division of Nephrology, Department of Pediatrics and Sainte-Justine Hospital (CHU Sainte-Justine), University of Montreal, 3175 Côte Ste-Catherine, Montreal, QC, Canada H3T 1C5
| | - Véronique Phan
- Division of Nephrology, Department of Pediatrics and Sainte-Justine Hospital (CHU Sainte-Justine), University of Montreal, 3175 Côte Ste-Catherine, Montreal, QC, Canada H3T 1C5
| | - Anne-Laure Lapeyraque
- Division of Nephrology, Department of Pediatrics and Sainte-Justine Hospital (CHU Sainte-Justine), University of Montreal, 3175 Côte Ste-Catherine, Montreal, QC, Canada H3T 1C5
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Larochelle J, Alvarez F, Bussières JF, Chevalier I, Dallaire L, Dubois J, Faucher F, Fenyves D, Goodyer P, Grenier A, Holme E, Laframboise R, Lambert M, Lindstedt S, Maranda B, Melançon S, Merouani A, Mitchell J, Parizeault G, Pelletier L, Phan V, Rinaldo P, Scott CR, Scriver C, Mitchell GA. Effect of nitisinone (NTBC) treatment on the clinical course of hepatorenal tyrosinemia in Québec. Mol Genet Metab 2012; 107:49-54. [PMID: 22885033 DOI: 10.1016/j.ymgme.2012.05.022] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [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: 05/27/2012] [Accepted: 05/28/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND Hepatorenal tyrosinemia (HT1, fumarylacetoacetate hydrolase deficiency, MIM 276700) can cause severe hepatic, renal and peripheral nerve damage. In Québec, HT1 is frequent and neonatal HT1 screening is practiced. Nitisinone (NTBC, Orfadin ®) inhibits tyrosine degradation prior to the formation of toxic metabolites like succinylacetone and has been offered to HT1 patients in Québec since 1994. METHODS We recorded the clinical course of 78 Québec HT1 patients born between 1984 and 2004. There were three groups: those who never received nitisinone (28 patients), those who were first treated after 1 month of age (26 patients) and those treated before 1 month (24 patients). Retrospective chart review was performed for events before 1994, when nitisinone treatment began, and prospective data collection thereafter. FINDINGS No hospitalizations for acute complications of HT1 occurred during 5731 months of nitisinone treatment, versus 184 during 1312 months without treatment (p<0.001). Liver transplantation was performed in 20 non-nitisinone-treated patients (71%) at a median age of 26 months, versus 7 late-treated patients (26%, p<0.001), and no early-treated patient (p<0.001). No early-treated patient has developed detectable liver disease after more than 5 years. Ten deaths occurred in non-nitisinone treated patients versus two in treated patients (p<0.01). Both of the latter deaths were from complications of transplantation unrelated to HT1. One probable nitisinone-related event occurred, transient corneal crystals with photophobia. INTERPRETATION Nitisinone treatment abolishes the acute complications of HT1. Some patients with established liver disease before nitisinone treatment eventually require hepatic transplantation. Patients who receive nitisinone treatment before 1 month had no detectable liver disease after more than 5 years.
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Affiliation(s)
- Jean Larochelle
- Centre de santé et de services sociaux de Chicoutimi, 305, rue Saint-Vallier, CP 5006, Chicoutimi, Québec, Canada G7H 5H6
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Abstract
OBJECTIVE To determine whether parental reporting of malodorous urine is associated with urinary tract infection (UTI) in children. METHODS We conducted a prospective consecutive cohort study in the emergency department of a pediatric hospital from July 31, 2009 to April 30, 2011. All children aged between 1 and 36 months for whom a urine culture was prescribed for suspected UTI (ie, unexplained fever, irritability, or vomiting) were assessed for eligibility. A standardized questionnaire was administered to the parents by a research assistant. The primary outcome measure was a UTI. RESULTS Three hundred ninety-six children were initially enrolled, but 65 were excluded a posteriori either because a urine culture, although prescribed, was not done (11), was collected by bag (39), and/or showed gross contamination (25). Therefore, 331 children were included in the final analysis. Their median age was 12 months (range, 1-36). Criteria for UTI were fulfilled in 51 (15%). A malodorous urine was reported by parents in 57% of children with UTI and in 32% of children without UTI. On logistic regression, malodorous urine was associated with UTI (odds ratio 2.83, 95% confidence interval: 1.54-5.20). This association remained statistically significant when adjusted for gender and the presence of vesicoureteral reflux (odds ratio 2.73, 95% confidence interval: 1.46-5.08). CONCLUSIONS Parental reporting of malodorous urine increases the probability of UTI among young children being evaluated for suspected UTI. However, this association is not strong enough to definitely rule in or out a diagnosis of UTI.
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Affiliation(s)
- Marie Gauthier
- Division of General Pediatrics, Department of Pediatrics, Sainte-Justine University Hospital Center, University of Montreal, Montreal, Canada.
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Ozanne B, Nelson J, Cousineau J, Lambert M, Phan V, Mitchell G, Alvarez F, Ducruet T, Jouvet P. Threshold for toxicity from hyperammonemia in critically ill children. J Hepatol 2012; 56:123-8. [PMID: 21703182 DOI: 10.1016/j.jhep.2011.03.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [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: 11/25/2010] [Revised: 03/22/2011] [Accepted: 03/24/2011] [Indexed: 01/29/2023]
Abstract
BACKGROUND & AIMS Hyperammonemia results from reduction of hepatocyte function or enzyme of urea cycle deficiency. Hyperammonemia contributes to cerebral edema that may lead to cerebral herniation. The threshold of toxicity of ammonemia is unknown. METHODS We conducted a retrospective observational study in our pediatric intensive care unit. All children who developed hyperammonemia from January 2000 to April 2009 were included. Clinical and laboratory data at admission, specific treatments implemented, and ammonemias the first 7 days after inclusion were collected. The outcome assessed was 28 day mortality. Risk of mortality was estimated by a logistic regression model. RESULTS Ninety patients with liver failure (63.3%) and primary or secondary urea cycle defect (23.3%) were included. Patients with urea cycle defects were more likely to receive ammonia scavengers than patients with liver failure (47.6% versus 3.5%). The 28 day mortality rate was 31.1%. Risk of mortality increased according to the ammonemia within 48 h: odds ratio 1.5, 1.9, 3.3, 2.4 for ammonemia above 100, 150, 200, and 300 μmol/L, respectively. Peak ammonemia ≥200 μmol/L within the first 48 h was an independent risk factor for mortality, with greater risk found in liver failure than in urea cycle defect. CONCLUSIONS Our study identifies a threshold of exposure to ammonia (≥200 μmol/L) above which mortality increases significantly, especially in liver failure. Specific treatments of hyperammonemia are rarely used in liver failure when compared with urea cycle defect even though use of ammonia scavengers may help to decrease ammonemia.
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Affiliation(s)
- Bruno Ozanne
- CHU Sainte-Justine, Soins Intensifs, 3175 Chemin de la Côte Sainte-Catherine, Montréal (QC), Canada H3T 1C5
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Rondeau G, Merouani A, Phan V, Deal C, Robitaille P. Serum prolactin levels in a uremic child: effects of bilateral nephrectomy and kidney transplantation. Clin Kidney J 2011; 4:303-6. [PMID: 25984175 PMCID: PMC4421727 DOI: 10.1093/ndtplus/sfr092] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Accepted: 06/22/2011] [Indexed: 11/12/2022] Open
Abstract
Elevated levels of serum prolactin (PRL) are common and well described in patients with chronic renal failure. We report the case of a 4-year-old girl who also presented with premature thelarche and transient galactorrhea. Neither peritoneal dialysis nor hemodialysis reduced her extremely elevated levels of PRL, which fluctuated from time to time, probably reflecting variations in lactotroph secretion rate. Bilateral nephrectomy (BN) was eventually followed by a progressive and significant rise in PRL levels, suggesting that even uremic kidneys can eliminate PRL through tubular breakdown. Kidney transplantation was responsible for a very abrupt normalization of PRL serum levels, much faster than that observed for creatinine. This confirms animal studies suggesting that elimination of PRL occurs both through glomerular filtration and tubular breakdown. We hypothesized that the seemingly precocious puberty may have resulted from a combination of growth hormone therapy, elevated PRL and a rise in estrogens through the aromatization of adrenal androgens. This case illustrates the impact of dialysis, BN and kidney transplantation on PRL, providing new knowledge on renal PRL metabolism.
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Affiliation(s)
- Geneviève Rondeau
- Adult Endocrinology Division, University of Montreal Hospital Centre (CHUM), Montreal, Canada
| | - Aïcha Merouani
- Department of Pediatrics, Division of Nephrology, Sainte-Justine Hospital, Montreal, Canada
| | - Véronique Phan
- Department of Pediatrics, Division of Nephrology, Sainte-Justine Hospital, Montreal, Canada
| | - Cheri Deal
- Department of Pediatrics, Division of Endocrinology, Sainte-Justine Hospital, Quebec, Canada
| | - Pierre Robitaille
- Department of Pediatrics, Division of Nephrology, Sainte-Justine Hospital, Montreal, Canada
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Alkandari O, Eddington KA, Hyder A, Gauvin F, Ducruet T, Gottesman R, Phan V, Zappitelli M. Acute kidney injury is an independent risk factor for pediatric intensive care unit mortality, longer length of stay and prolonged mechanical ventilation in critically ill children: a two-center retrospective cohort study. Crit Care 2011; 15:R146. [PMID: 21663616 PMCID: PMC3219018 DOI: 10.1186/cc10269] [Citation(s) in RCA: 240] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2011] [Revised: 05/02/2011] [Accepted: 06/10/2011] [Indexed: 12/18/2022]
Abstract
Introduction In adults, small (< 50%) serum creatinine (SCr) increases predict mortality. It is unclear whether different baseline serum creatinine (bSCr) estimation methods affect findings of acute kidney injury (AKI)-outcome associations. We characterized pediatric AKI, evaluated the effect of bSCr estimation approaches on AKI-outcome associations and evaluated the use of small SCr increases to predict AKI development. Methods We conducted a retrospective cohort database study of children (excluding postoperative cardiac or renal transplant patients) admitted to two pediatric intensive care units (PICUs) for at least one night in Montreal, QC, Canada. The AKI definition was based on the Acute Kidney Injury Network staging system, excluding the requirement of SCr increase within 48 hours, which was impossible to evaluate on the basis of our data set. We estimated bSCr two ways: (1) the lowest SCr level in the three months before admission or the average age- and gender-based norms (the standard method) or (2) by using average norms in all patients. Outcomes were PICU mortality and length of stay as well as required mechanical ventilation. We used multiple logistic regression analysis to evaluate AKI risk factors and the association between AKI and mortality. We used multiple linear regression analysis to evaluate the effect of AKI on other outcomes. We calculated diagnostic characteristics for early SCr increase (< 50%) to predict AKI development. Results Of 2,106 admissions (mean age ± SD = 5.0 ± 5.5 years; 47% female), 377 patients (17.9%) developed AKI (using the standard bSCr method) during PICU admission. Higher Pediatric Risk of Mortality score, required mechanical ventilation, documented infection and having a bSCr measurement were independent predictors of AKI development. AKI was associated with increased mortality (adjusted odds ratio (OR) = 3.7, 95% confidence interval (95% CI) = 2.1 to 6.4, using the standard bSCr method; OR = 4.5, 95% CI = 2.6 to 7.9, using normative bSCr values in all patients). AKI was independently associated with longer PICU stay and required mechanical ventilation. In children with no admission AKI, the initial percentage SCr increase predicted AKI development (area under the curve = 0.67, 95% CI = 0.60 to 0.74). Conclusions AKI is associated with increased mortality and morbidity in critically ill children, regardless of the bSCr used. Paying attention to small early SCr increases may contribute to early AKI diagnosis in conjunction with other new AKI biomarkers.
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Affiliation(s)
- Omar Alkandari
- Division of Nephrology, Department of Pediatrics, McGill University Health Centre, Montreal Children's Hospital, 2300 Tupper, Room E-213, Montreal, QC, H3H 1P3, Canada
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Abderrahmane M, Desmarais D, Robitaille P, Phan V, Clermont MJ, Lapeyraque AL, Mérouani A. [A specialized and integrated outpatient clinic for the care of children with chronic kidney disease: experience of CHU Sainte-Justine]. Nephrol Ther 2009; 5:631-6. [PMID: 19640821 DOI: 10.1016/j.nephro.2009.06.005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Revised: 06/18/2009] [Accepted: 06/18/2009] [Indexed: 10/20/2022]
Abstract
The management and optimal care for the pediatric patient with chronic kidney disease requires attention not only to medical management, but also special focus on the psychosocial and developmental factors of children which is complicated by the presence of other disease-related complications. In recent years, specialized chronic kidney disease and predialysis clinics have been set up to facilitate and improve the quality of care of these patients with a multidisciplinary organisation and coordinated management approaches of a renal team. We present our experience in establishing such a renal management clinic named "Prévoir" for children with chronic kidney disease at Sainte-Justine Hospital.
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Affiliation(s)
- Maroua Abderrahmane
- Service de néphrologie pédiatrique, département de pédiatrie, CHU-Sainte Justine, université de Montréal, Côte Sainte-Catherine, Québec, Canada
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Figura M, Chilton L, Liacini A, Viskovic MM, Phan V, Knight D, Millar TM, Patel K, Kubes P, Giles WR, Tibbles LA. Blockade of K(ATP) channels reduces endothelial hyperpolarization and leukocyte recruitment upon reperfusion after hypoxia. Am J Transplant 2009; 9:687-96. [PMID: 19292831 DOI: 10.1111/j.1600-6143.2009.02553.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Ischemia/reperfusion injury in renal transplantation leads to slow or initial nonfunction, and predisposes to acute and chronic rejection. In fact, severe ischemia reperfusion injury can significantly reduce graft survival, even with modern immunosuppressive agents. One of the mechanisms by which ischemia/reperfusion causes injury is activation of endothelial cells resulting in inflammation. Although several therapies can be used to prevent leukocyte recruitment to ischemic vessels (e.g. antiadhesion molecule antibodies), there have been no clinical treatments reported that can prevent initial immediate neutrophil recruitment upon reperfusion. Using intravital microscopy, we describe abrogation of immediate neutrophil recruitment to ischemic microvessels by the K(ATP) antagonist glibenclamide (Glyburide). Further, we show that glibenclamide can reduce leukocyte recruitment in vitro under physiologic flow conditions. ATP-regulated potassium channels (K(ATP)) are important in the control of cell membrane polarization. Here we describe profound hyperpolarization of endothelial cells during hypoxia, and the reduction of this hyperpolarization using glibenclamide. These findings suggest that control of endothelial membrane potential during ischemia may be an important therapeutic tool in avoiding ischemia/reperfusion injury, and therefore, enhancing transplant long-term function.
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Affiliation(s)
- M Figura
- Institute of Infection, Immunity and Inflammation, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
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Rougemont AL, Alfieri C, Fabre M, Gorska-Flipot I, Papp E, Champagne J, Phan V, Fournet JC, Sartelet H. Atypical Epstein-Barr virus (EBV) latent protein expression in EBV-associated smooth muscle tumours occurring in paediatric transplant recipients. Histopathology 2009; 53:363-7. [PMID: 18631193 DOI: 10.1111/j.1365-2559.2008.03086.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Abstract
AIMS To describe attitudes of paediatricians and paediatric nephrologists regarding antibiotic prophylaxis for urinary tract infection (UTI) and determine the factors associated with its use. METHOD A self-administered questionnaire was mailed to Canadian paediatricians (1136) and paediatric nephrologists (42). RESULTS The response rate was 58.1% (684 physicians); 436 who had made a decision about antibiotic prophylaxis for childhood UTI in the previous year were included in the analysis. Of these, 407 (93.3%) were certified in paediatrics and 29 (6.7%) were paediatric nephrologists. Most respondents prescribed prophylaxis for children with grade III-V vesicoureteral reflux (VUR) (96.5%-98%); 69.8 and 92.8% prescribed it for children with grades I and II VUR, respectively. Factors significantly associated with use of prophylaxis for children with grade I VUR were frequency of decision-making about prophylaxis, city size and province. Fifteen percent of physicians felt that their practice regarding antibiotic prophylaxis for children with VUR was evidence based. A hundred one respondents (24.3%) prescribed prophylaxis for infants with a first febrile UTI in the absence of VUR. Nineteen percent felt that their practice regarding antibiotic prophylaxis for these infants was evidence based. Prescription of prophylaxis for children >12 months with recurrent UTI in the absence of VUR was influenced by frequency of pyelonephritis (88.5% of respondents) and presence of voiding dysfunction (53.8%). Nine percent of physicians felt that their practice for these children was evidence based. CONCLUSION Opinions of Canadian paediatricians and paediatric nephrologists regarding antibiotic prophylaxis for UTI in children vary widely, probably because of the paucity of solid evidence about prophylaxis.
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Lapeyraque AL, Wagner E, Phan V, Clermont MJ, Merouani A, Frémeaux-Bacchi V, Goodship THJ, Robitaille P. Efficacy of plasma therapy in atypical hemolytic uremic syndrome with complement factor H mutations. Pediatr Nephrol 2008; 23:1363-6. [PMID: 18425537 DOI: 10.1007/s00467-008-0803-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [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: 08/15/2007] [Revised: 02/01/2008] [Accepted: 02/04/2008] [Indexed: 01/16/2023]
Abstract
Atypical hemolytic uremic syndrome (aHUS) frequently results in end-stage renal failure and can be lethal. Several studies have established an association between quantitative or qualitative abnormalities in complement factor H and aHUS. Although plasma infusion and exchange are often advocated, guidelines have yet to be established. Long-term outcome for patients under treatment is still unknown. We describe a patient who, at 7 months of age, presented with aHUS associated with combined de novo complement factor H mutations (S1191L and V1197A) on the same allele. Laboratory investigations showed normal levels of complements C4, C3 and factor H. Plasma exchanges and large-dose infusion therapy resulted in a resolution of hemolysis and recovery of renal function. Three recurrences were successfully treated by intensification of the plasma infusion treatment to intervals of 2 or 3 days. This patient showed good response to large doses of plasma infusions and her condition remained stable for 30 months with weekly plasma infusions (30 ml/kg). Long-term tolerance and efficacy of such intensive plasma therapy are still unknown. Reported secondary failure of plasma therapy in factor H deficiency warrants the search for alternative therapeutic approaches.
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Affiliation(s)
- Anne-Laure Lapeyraque
- Department of Pediatrics, Division of Nephrology, CHU Sainte-Justine, Montreal, QC, Canada.
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Renoult E, Clermont MJ, Phan V, Buteau C, Alfieri C, Tapiero B. Prevention of CMV disease in pediatric kidney transplant recipients: evaluation of pp67 NASBA-based pre-emptive ganciclovir therapy combined with CMV hyperimmune globulin prophylaxis in high-risk patients. Pediatr Transplant 2008; 12:420-5. [PMID: 18466427 DOI: 10.1111/j.1399-3046.2007.00799.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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: 10/22/2022]
Abstract
A new prevention strategy for CMV infection was evaluated in our pediatric kidney transplant unit. This approach comprises a pre-emptive therapy, based upon the monitoring of CMV pp67 mRNA in whole blood by the qualitative NASBA, combined with prophylactic CMV-IG in high risk (R-/D+) children. Thirty-one kidney transplant children were followed for six months with serial measurements of CMV pp67 mRNA in the blood. The R-/D+ patients were given prophylactic CMV-IG for the first 16 wk after transplantation. I.v. ganciclovir was administered upon CMV detection by NASBA and was discontinued after two consecutive negative results. CMV infection, detected by NASBA, developed in 11 (35%) recipients: one (33%) of the R+/D- patients and 10 (72%) of the R-/D+ patients. CMV disease developed in 9.6% of the patients (3/31), exclusively in the R-/D+ group. These three patients presented concurrently with CMV viremia and disease. It is noteworthy that two of the three patients could not receive a complete course of CMV-IG, and one of the latter two subjects had been treated for acute rejection 15 days before CMV infection. Ganciclovir was given for the 11 cases of primary infection, and for three cases of relapsed CMV infection. pp67 NASBA-based pre-emptive ganciclovir therapy, combined with prophylactic CMV-IG in high-risk patients leads to a lower rate of CMV disease, as long as a complete course of CMV-IG has been administered and ganciclovir is given during the period of treatment for acute rejection in high-risk populations.
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Affiliation(s)
- Edith Renoult
- Department of Pediatrics, Sainte-Justine Hospital, University of Montreal, QC, Canada.
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Spanholtz TA, Theodorou P, Phan V, Perbix W, Spilker G. [Reconstruction of the oral commissure in microstomia patients with deep dermal facial burns: a modified technique]. HANDCHIR MIKROCHIR P 2008; 39:350-5. [PMID: 17985280 DOI: 10.1055/s-2007-965796] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND Deep thermal dermal wounds of the oral region with subsequent microstomia are a rare and complex indication for surgical reconstruction of the oral commissure. Apart from functional and mimic aspects, aesthetic expectations are high. Based on converse technique, we performed a reconstruction of the oral commissure in 17 patients. 8 of these needed surgical re-operation due to recurrence and insufficient results. This high rate of complications led to a modification of the surgical procedure. PATIENTS We present a modified technique which gave good results in our clinic. Based on Fairbank's technique, we altered the technique by covering the soft tissue defect of the lateral lip with an additional rotation flap raised from the mucosa of the enoral lower lip. Resulting scars were thereby shifted to the enoral side of the lower lip which caused less contracture in the region of the oral commissure. RESULTS Using this modified technique, we were able to achieve a lasting displacement of the oral commissure to the lateral side. Long-term follow-up showed good functional results with no need for additional procedures.
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Affiliation(s)
- T A Spanholtz
- Plastische Chirurgie, Universität Witten/Herdecke, Köln, Germany.
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Benoit G, Phan V, Duval M, Champagne M, Litalien C, Merouani A. Fluid balance of pediatric hematopoietic stem cell transplant recipients and intensive care unit admission. Pediatr Nephrol 2007; 22:441-7. [PMID: 17123119 DOI: 10.1007/s00467-006-0331-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [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: 06/14/2006] [Revised: 09/13/2006] [Accepted: 09/14/2006] [Indexed: 10/23/2022]
Abstract
Fluid administration is essential in patients undergoing hematopoietic stem cell transplant (HSCT). Admission to pediatric intensive care unit (PICU) is required for 11-29% of pediatric HSCT recipients and is associated with high mortality. The objective of this study was to determine if a positive fluid balance acquired during the HSCT procedure is a risk factor for PICU admission. The medical records of 87 consecutive children who underwent a first HSCT were reviewed retrospectively for the following periods: from admission for HSCT to PICU admission for the first group (PICU group), and from admission for HSCT to hospital discharge for the second group (non-PICU group). Fluid balance was determined on the basis of weight gain (WG) and fluid overload (FO). PICU group consisted of 19 patients (21.8%). Among these, 13 (68.4%) developed>or=10% WG prior to PICU admission compared with 15 (22.1%) in the non-PICU group (p<0.001). Thirteen patients (68.4%) developed>or=10% FO prior to PICU admission compared with 31 (45.6%) in the non-PICU group (p=0.075). Following multivariate analysis, >or=10% WG (p=0.018) and cardiac dysfunction on admission for HSCT (p=0.036) remained independent risk factors for PICU admission. Smaller children (p=0.033) and patients with a twofold increase in serum creatinine (p=0.026) were at risk of developing>or=10% WG. This study shows that WG is a risk factor for PICU admission in pediatric HSCT recipients. Further research is needed to better understand the pathophysiology of WG in these patients and to determine the impact of WG prevention on PICU admission.
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Affiliation(s)
- Geneviève Benoit
- Division of Nephrology, Department of Pediatrics, Hôpital Sainte-Justine, Université de Montréal, 3175 Chemin de la Côte Sainte-Catherine, H3T 1C5, Montréal, QC, Canada
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Bailey D, Phan V, Litalien C, Ducruet T, Mérouani A, Lacroix J, Gauvin F. Risk factors of acute renal failure in critically ill children: A prospective descriptive epidemiological study. Pediatr Crit Care Med 2007; 8:29-35. [PMID: 17251879 DOI: 10.1097/01.pcc.0000256612.40265.67] [Citation(s) in RCA: 167] [Impact Index Per Article: 9.8] [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] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Acute renal failure is a serious condition in critically ill patients, but little literature is available on acute renal failure in critically ill children. The aim of the study was to determine incidence rate, identify risk factors, and describe the clinical outcome of acute renal failure in the pediatric intensive care unit (PICU). DESIGN Prospective, descriptive study. SETTING A tertiary PICU. PATIENTS Patients were 1,047 consecutively admitted children over a 1-yr period. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Acute renal failure was defined as doubling of baseline serum creatinine. A comparison between patients with acute renal failure and without acute renal failure was carried out, and the risk factors playing a significant role in the manifestation of acute renal failure were analyzed. There were 985 cases included in the study, with the incidence rate of acute renal failure in PICU being 4.5%. The most common PICU admission diagnoses in acute renal failure cases were hemolytic uremic syndrome (18.2%), oncologic pathologies (18.2%), and cardiac surgery (11.4%). Significant risk factors for acute renal failure following multivariate analysis were thrombocytopenia (odds ratio, 6.3; 95% confidence interval, 2.5, 16.2), age >12 yrs (odds ratio, 4.9; 95% confidence interval, 1.9, 13), hypoxemia (odds ratio, 3.2; 95% confidence interval, 1.3, 8.0), hypotension (odds ratio, 3.0; 95% confidence interval, 1.2, 7.5), and coagulopathy (odds ratio, 2.7; 95% confidence interval, 1.3, 5.6). The mortality rate was estimated to be higher in patients with acute renal failure compared with patients without acute renal failure (29.6% vs. 2.3%, p < .001). CONCLUSIONS Although not frequent in the PICU, acute renal failure is associated with a significant increase in mortality. The risk factors of acute renal failure are multiple and are often present before PICU admission. A multiple-center study is planned with the intention to confirm these results.
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Affiliation(s)
- Dennis Bailey
- Service of Pediatric Critical Care Medicine, Department of Pediatrics, Sainte-Justine Hospital, Université de Montréal, Montréal, Canada
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Affiliation(s)
- K Tousignant
- Department of Nephrology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada.
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Phan V, Clermont MJ, Merouani A, Litalien C, Tucci M, Lambert M, Mitchell G, Jouvet P. Duration of extracorporeal therapy in acute maple syrup urine disease: a kinetic model. Pediatr Nephrol 2006; 21:698-704. [PMID: 16518628 DOI: 10.1007/s00467-006-0044-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 06/16/2005] [Revised: 10/04/2005] [Accepted: 11/07/2005] [Indexed: 12/31/2022]
Abstract
Maple syrup urine disease (MSUD, MIM 248600) can be complicated by metabolic crises necessitating extracorporeal removal therapy (ECRT). Since leucine levels are usually not immediately available during therapy, an accurate kinetic model of leucine plasma levels during removal would be useful to establish the duration of ECRT. Such a kinetic model is available for neonates undergoing continuous ECRT (CECRT) with a leucine clearance>or=35 ml min-1 1.73 m-2. The current study tests the validity of this model in older children. Plasma leucine levels were obtained from eleven ECRT sessions [seven CECRT and four intermittent hemodialysis (HDi) sessions] in seven children aged 1-14 years. No hemodynamic instability or neurological complications were observed during treatment. HDi provided a higher leucine clearance and required shorter sessions than CECRT (5.4+/-0.6 vs. 17.1+/-6.0 h). All patients regained precrisis neurological status except for one patient who had severe neurological damage (severe cerebral edema) at the time of dialysis and subsequently died despite efficient leucine removal. A leucine clearance>or=50 ml min-1 1.73 m-2 is required to obtain a kinetic model similar to that reported in neonates, both with CECRT and HDi. This model should be helpful in predicting the duration of therapy needed to attain desired leucine levels.
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Affiliation(s)
- Véronique Phan
- Division of Nephrology, Centre Universitaire Mère-Enfant Sainte-Justine Hospital, Montreal, Quebec, Canada.
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