{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T21:28:48Z","timestamp":1788643728761,"version":"build-2803163510"},"reference-count":17,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T00:00:00Z","timestamp":1777852800000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["bjui-journals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJUI Compass"],"published-print":{"date-parts":[[2026,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Flexible and navigable suction access sheath (FANS) with flexible ureterorenoscopy (FURS) has demonstrated favourable 30\u2010day and 3\u2010month outcomes for renal stones in normal anatomy. We aimed to investigate the long\u2010term 1\u2010year safety and efficacy of FANS for renal and ureteric stones in normal or anomalous anatomy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This prospective multicentre study included adults undergoing FURS with FANS across 11 centres in 9 countries (April 2023 to August 2024), with follow\u2010up until August 2025. Anatomical outcomes were assessed by contrast CT (or ultrasound if CT not available) at 1 year; stone\u2010free rate (SFR) was assessed via noncontrast CT at 30 days. The primary aim was to report if altered anatomy, such as pelvicalyceal or pelviureteric or ureteric stricture, occurs at a later stage.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Among 288 patients, median age was 55\u2009years, and 4.5% had anomalous renal anatomy. About 49% were prestented. Stones were located only in the kidney (62%), ureter (18%) or both (20.1%). Median stone volume was 725\u00a0mm\n                      <jats:sup>3<\/jats:sup>\n                      ; median Hounsfield unit was 1100. Most procedures (84%) used a 7.5Fr scope with 10\/12 Fr FANS. Regarding exit strategies, 65% were stented, 14% had an overnight ureteric catheter and 21% were tubeless. Mild bleeding occurred in 17% with no postoperative sepsis, transfusions or persistent hematuria. One patient (0.35%) experienced a Grade 1 ureteric injury. On a 30\u2010day CT, 82% achieved zero residual fragments (Grade A SFR). On 1\u2010year CT, five patients (1.7%) were diagnosed with ureteric stricture, 9.7% had persistent residual fragments, and 5.6% developed new ipsilateral stones. Of the five patients with strictures, three had a history of ureteric re\u2010implantation and only one had been prestented. Serum creatinine showed no significant change from baseline.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study reports the longest 1\u2010year follow\u2010up data for patients undergoing FURS with FANS to date. The study did not identify a high rate of late anatomical complications after successful FANS deployment in the treatment of renal and ureteric stones. Caution is warranted in patients with a history of ureteral re\u2010implantation due to elevated risk of stricture formation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/bco2.70213","type":"journal-article","created":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T02:33:52Z","timestamp":1777948432000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Assessment of anatomical outcomes in the upper urinary tract following flexible ureteroscopy with flexible and navigable suction ureteral access sheath: 1\u2010year results from a multicentre study"],"prefix":"10.1002","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9956-1558","authenticated-orcid":false,"given":"Steffi Kar Kei","family":"Yuen","sequence":"first","affiliation":[{"name":"S.H. Ho Urology Centre, Department of Surgery The Chinese University of Hong Kong  Hong Kong China"},{"name":"European Association of Urology Section of Endourology (ESEUT)  Arnhem The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chi\u2010Fai","family":"Ng","sequence":"additional","affiliation":[{"name":"S.H. Ho Urology Centre, Department of Surgery The Chinese University of Hong Kong  Hong Kong China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8194-0800","authenticated-orcid":false,"given":"Khi Yung","family":"Fong","sequence":"additional","affiliation":[{"name":"Department of Urology Singapore General Hospital  Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6248-6478","authenticated-orcid":false,"given":"Bhaskar Kumar","family":"Somani","sequence":"additional","affiliation":[{"name":"Department of Urology University Hospital Southampton, NHS Trust  Southampton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boyke","family":"Soebhali","sequence":"additional","affiliation":[{"name":"Department of Urology, Abdul Wahab Sjahranie Hospital Medical Faculty Muliawarman University  Samarinda Indonesia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamed","family":"Elshazly","sequence":"additional","affiliation":[{"name":"Urology Department Menoufia University  Shibin el Kom Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vigen","family":"Malkhasyan","sequence":"additional","affiliation":[{"name":"Department of Urology, Moscow Urology Center Botkin Hospital  Moscow Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karl","family":"Tan","sequence":"additional","affiliation":[{"name":"Department of Urology Veterans Memorial Medical Center  Quezon City Philippines"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9354-3570","authenticated-orcid":false,"given":"Luis","family":"Rico","sequence":"additional","affiliation":[{"name":"Department of Urology Hospital Alem\u00e1n de Buenos Aires  Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehmet Ilker","family":"Gokce","sequence":"additional","affiliation":[{"name":"Department of Urology, Ankara University School of Medicine Department of Urology  Ankara Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han Jie","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Urology Singapore General Hospital  Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nariman","family":"Gadzhiev","sequence":"additional","affiliation":[{"name":"Department of Urology Saint Petersburg State University Hospital  St. Petersburg Russian Federation"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1398-8332","authenticated-orcid":false,"given":"Tzevat","family":"Tefik","sequence":"additional","affiliation":[{"name":"Department of Urology Istanbul University Istanbul Faculty of Medicine  Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianwei","family":"Cao","sequence":"additional","affiliation":[{"name":"Xinhua Hospital Shanghai Jiao Tong University School of Medicine  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0043-7195","authenticated-orcid":false,"given":"Albert","family":"El Hajj","sequence":"additional","affiliation":[{"name":"Department of Urology American University of Beirut Medical Center  Beirut Lebanon"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5484-9390","authenticated-orcid":false,"given":"Chi\u2010Ho","family":"Leung","sequence":"additional","affiliation":[{"name":"S.H. 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