{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T12:52:56Z","timestamp":1787662376118,"version":"build-2736575974"},"reference-count":30,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,10,26]],"date-time":"2024-10-26T00:00:00Z","timestamp":1729900800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100005595","name":"University of California","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100005595","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["bjui-journals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJU International"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To define the natural distensibility of the human ureter and evaluate the impact of other possibly favourable factors on ureteric distensibility.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Patients and Methods<\/jats:title>\n                    <jats:p>A total of 101 patients undergoing ureteroscopic stone removal or percutaneous nephrolithotomy underwent ureteric sizing using sequential passage of 37\u2010cm urethral dilators in 2\u2010F increments while attached to a unique force sensor. Insertion forces were limited to 6\u2009N. After 6\u2009N was attained, an appropriately sized ureteric access sheath was passed. At the conclusion of each procedure, Post\u2010Ureteroscopic Lesion Scale score was determined.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Urethral dilators were passed in 61% of patients at \u226414 F; 39% of patients accepted urethral dilators of \u226516 F. The mean dilator size was 14 F. Multivariate logistic regression analysis revealed that preprocedural ureteric stenting and antibiotic use favoured passage of 16\u2010F dilators (odds ratio [OR] 5.16, 95% confidence interval [CI] 1.70\u201315.62 [\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.004] and OR 5.15, 95% CI 1.743\u201315.243 [\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.003], respectively). Neither tamsulosin nor prior urinary tract infection had an impact on ureteric size (OR 0.765, 95% CI 0.281\u20132.084 [\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.601], OR 1.049, 95% CI 0.269\u20134.089 [\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.945], respectively).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Using continuous insertion force monitoring and a 6\u2010N threshold, the majority of unstented adult human ureters within our patient population safely accommodated a 14\u2010F dilator. Safe passage of a 16\u2010F dilator at the 6\u2010N threshold was more likely among patients with a preexisting indwelling ureteric stent or patients who were treated with antibiotics within a week of the procedure.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/bju.16564","type":"journal-article","created":{"date-parts":[[2024,10,26]],"date-time":"2024-10-26T04:48:09Z","timestamp":1729918089000},"page":"456-464","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Clinical determination of the natural distensibility of the human ureter: initial study"],"prefix":"10.1111","volume":"135","author":[{"given":"Sohrab N.","family":"Ali","sequence":"first","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-1261-1323","authenticated-orcid":false,"given":"Amanda","family":"McCormac","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrei D.","family":"Cumpanas","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaime","family":"Altamirano\u2010Villarroel","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Piedras","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minh\u2010Chau","family":"Vu","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew S.","family":"Afyouni","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zachary E.","family":"Tano","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn","family":"Osann","sequence":"additional","affiliation":[{"name":"Department of Medicine and Program in Public Health University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Klopfer","sequence":"additional","affiliation":[{"name":"Henry Samueli School of Engineering University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pengbo","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roshan M.","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaime","family":"Landman","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ralph V.","family":"Clayman","sequence":"additional","affiliation":[{"name":"Department of Urology University of California  Irvine, Orange CA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,10,26]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.juro.2016.05.090"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1089\/end.2022.0037"},{"key":"e_1_2_9_4_1","first-page":"229","article-title":"Retrograde intrarenal surgery versus percutaneous nephrolithotomy in larger kidney stones. 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