{"id":24217,"date":"2026-05-29T16:00:39","date_gmt":"2026-05-29T20:00:39","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&#038;p=24217"},"modified":"2026-06-26T16:04:57","modified_gmt":"2026-06-26T20:04:57","slug":"a-retrospective-population-based-cohort-study-to-assess-outcomes-time-to-complications-and-cost-of-follow-up-care-following-pediatric-pyeloplasty-in-ontario-canada-2002-2016","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/a-retrospective-population-based-cohort-study-to-assess-outcomes-time-to-complications-and-cost-of-follow-up-care-following-pediatric-pyeloplasty-in-ontario-canada-2002-2016\/","title":{"rendered":"A retrospective population-based cohort study to assess outcomes, time to complications and cost of follow-up care following pediatric pyeloplasty in Ontario, Canada (2002-2016)"},"content":{"rendered":"<p><strong>Purpose<\/strong> \u2014 Pediatric dismembered pyeloplasty (PP) is the gold standard surgery for uretero-pelvic junction obstruction (UPJO) in children. However, there is no consensus regarding the duration and methods of providing follow-up care after PP. This study aims to assess the rate of redo-interventions following PP and to define the ideal follow-up care following PP.<\/p>\n<p><strong>Materials and methods<\/strong> \u2014 This is a retrospective population-based cohort study including all PP patients in Ontario between April 2002 and March 2016 using routinely collected data, with a minimum 5-year follow-up. Baseline variables included demographics, surgical approach, laterality and surgeon experience. The primary outcome was time to secondary surgical intervention, including redo PP. Secondary outcomes included costs of follow-up care and rates of early ER visits. Regression analyses were preformed to predict need for secondary intervention 2-years post PP, including independent variables: age, sex, surgical approach and early complication.<\/p>\n<p>Results \u2014 The study included 1049 patients with a median age of 2 (IQR 0\u20137) years. Of the 13.6% of patients who had at least one secondary intervention following PP (including 3.8% who underwent a redo PP), 90.2% occurred within 3-years of PP. The median cost\/patient of follow up care was $1472 CAD (IQR $292-$31,133). Regression analysis did not reveal any predictors of delayed secondary intervention.<\/p>\n<p><strong>Conclusions<\/strong> \u2014 This study demonstrates that over 86% of PP are completed successfully, with a 3.8% rate of redo-PP. The majority of secondary interventions for post-PP complications occur within 3 years post-PP. Variability in duration and cost of follow-up care post- PP should be addressed to minimize costs, and a minimum 3-years follow-up after PP is recommended.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Purpose \u2014 Pediatric dismembered pyeloplasty (PP) is the gold standard surgery for uretero-pelvic junction obstruction (UPJO) in children. However, there is no consensus regarding the duration and methods of providing follow-up care after PP. This study aims to assess the rate of redo-interventions following PP and to define the ideal follow-up care following PP. Materials [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[16,61,49,60,25],"migration-helper-qa-sample-set":[],"class_list":["post-24217","journal_article","type-journal_article","status-publish","hentry","topic-children-and-young-people","topic-health-economics","topic-kidney-disease","topic-policy-and-program-evaluation","topic-surgery"],"acf":{"citation":"Bar Yaakov N, McClure A, Lam M, Welk B, Wang P, Dave S. <em>J Pediatr Urol<\/em>. 2026; May 29\u00a0 [Epub ahead of print].","source_url":"https:\/\/doi.org\/10.1016\/j.jpurol.2026.106052","ices_scientist":[1131],"site":[6739],"research_program":[6743],"news_release":"","journal_article":"","atlas":"","research_report":"","infographic":"","video":"","downloads":null,"links":null,"sitecore_item_id":"","sitecore_item_name":"","sitecore_field_values":"","previous_url":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | A retrospective population-based cohort study to assess outcomes, time to complications and cost of follow-up care following pediatric pyeloplasty in Ontario, Canada (2002-2016)<\/title>\n<meta name=\"description\" content=\"Purpose \u2014 Pediatric dismembered pyeloplasty (PP) is the gold standard surgery for uretero-pelvic junction obstruction (UPJO) in children. 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