Open AccessContemporary risk factors for ureteral stricture following renal transplantation
Author(s) -
Anna Black,
David Harriman,
Christopher Nguan
Publication year - 2022
Publication title -
canadian urological association journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 38
eISSN - 1920-1214
pISSN - 1911-6470
DOI - 10.5489/cuaj.7648
Subject(s) - medicine , odds ratio , transplantation , surgery , retrospective cohort study , complication , renal function , logistic regression , kidney transplantation , confidence interval
Allograft ureteral strictures after renal transplantation impact graft function and increase patient morbidity. They can be challenging to treat and may require complex surgical repair. Therefore, the objective of this study was to identify contemporary risk factors for the development of post-renal transplant ureteral strictures.Methods: A retrospective analysis was performed on all renal transplant patients at Vancouver General Hospital from 2008–2019. Demographics, clinical parameters, and outcomes were compared between patients who did and did not develop ureteral strictures. Putative risk factors for ureteral stricture were analyzed using logistic regression.Results: A total of 1167 patients were included with a mean followup of 61.9±40.8 months. Ureteral strictures occurred in 25 patients (2.1%). Stricture patients had no demographic differences compared to non-stricture patients but had significantly higher rates of postoperative complications, longer hospital stays, and decreased renal function one-year post-transplant (all p 435 minutes (odds ratio [OR] 43.9, confidence interval [CI] 1.6–1238.8, p=0.027), acute rejection (OR 3.0, CI 1.1–7.4, p=0.027), and postoperative complications (OR 112.4, CI 2.4–5332.6, p=0.016) were risk factors for stricture.Conclusions: Renal transplant patients with ureteral stricture experience greater morbidity and reduced post-transplant renal function compared to non-stricture patients. Our findings support attempts to reduce cold ischemia time, acute rejection, and postoperative complications to mitigate this potential complication. Our study is limited by the low incidence of ureteral stricture resulting in a small sample of stricture patients. Future research in a larger, multicenter setting is warranted.