{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,15]],"date-time":"2026-08-15T12:26:49Z","timestamp":1786796809854,"version":"build-2736575974"},"reference-count":22,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T00:00:00Z","timestamp":1786492800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Laparoendoscopic & Advanced Surgical Techniques"],"abstract":"\n Purpose:<\/jats:title>\n To evaluate the association between postoperative stent dwell time and stone-free status following retrograde intrarenal surgery (RIRS) in pediatric patients.<\/jats:p>\n <\/jats:sec>\n \n Methods:<\/jats:title>\n This retrospective study included pediatric patients who underwent RIRS for renal stones \u226420 mm. Residual stone fragments were assessed by low-dose computed tomography at 3 months postoperatively and defined as either a single fragment >2 mm or the presence of multiple residual fragments regardless of size. Logistic regression analyses were performed to identify factors associated with stone-free status, including postoperative stent dwell time.<\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n \n A total of 108 pediatric patients were included, with a mean age of 9.8 \u00b1 4.5 years, and 74 patients (68.5%) were male. Residual fragments were observed in 40 patients (37.0%). In univariable logistic regression analysis, stone burden (\n P<\/jats:italic>\n < .001), fragmentation time (\n P<\/jats:italic>\n < .001), and the presence of multiple stones (\n P<\/jats:italic>\n = .022) were associated with residual fragments. In multivariable analysis, stone burden (\n P<\/jats:italic>\n = .007) and fragmentation time (\n P<\/jats:italic>\n = .003) remained independent predictors of residual fragments, whereas postoperative stent dwell time was not independently associated with stone-free status (\n P<\/jats:italic>\n = .381).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n No evidence was found to support an association between postoperative stent dwell time and stone-free status following pediatric RIRS. Earlier stent removal may therefore be feasible in uncomplicated pediatric patients without compromising stone-free outcomes. Further large-scale prospective studies are needed to establish clinical recommendations regarding stent duration.<\/jats:p>\n <\/jats:sec>","DOI":"10.1177\/10926429261479448","type":"journal-article","created":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T02:12:55Z","timestamp":1786587175000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Association Between Postoperative Stent Dwell Time and Stone-Free Status Following Pediatric Retrograde Intrarenal Surgery: A Retrospective Cohort Study"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2005-9734","authenticated-orcid":false,"given":"Ismail","family":"Ulus","sequence":"first","affiliation":[{"name":"Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5216-2202","authenticated-orcid":false,"given":"Yusuf","family":"Sahin","sequence":"additional","affiliation":[{"name":"Department of Urology, Istanbul Training and Research Hospital, Istanbul, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2212-5504","authenticated-orcid":false,"given":"Ibrahim","family":"Hacibey","sequence":"additional","affiliation":[{"name":"Department of Urology, Cam and Sakura City Hospital, Istanbul, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8691-0886","authenticated-orcid":false,"given":"Ahmet Yaser","family":"Muslumanoglu","sequence":"additional","affiliation":[{"name":"Department of Urology, Bagcilar Training and Research Hospital, Istanbul, 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