{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,15]],"date-time":"2026-02-15T11:02:42Z","timestamp":1771153362532,"version":"3.50.1"},"reference-count":14,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2025,5,10]],"date-time":"2025-05-10T00:00:00Z","timestamp":1746835200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,5,10]],"date-time":"2025-05-10T00:00:00Z","timestamp":1746835200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J of Urology"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study was performed to evaluate the efficacy of using a percutaneous 4.5\u2010Fr semi\u2010rigid ureteroscope (4.5\u2010rURS) and preoperative clinical factors in the performance of the through\u2010and\u2010through guidewire technique (T&amp;TGW) under the guidance of retrograde flexible ureteroscope (fURS)\u2010assisted fluoroscopy during minimally invasive endoscopic combined intrarenal surgery (mini\u2010ECIRS).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In total, 123 patients who underwent mini\u2010ECIRS with percutaneous 4.5\u2010rURS assistance for large kidney stones in the flank\u2010free modified Valdivia position were retrospectively evaluated. The primary outcome was the achievement rate of T&amp;TGW, defined as percutaneous insertion of a guidewire that passed down the ureter and exited outside the external urethral meatus. The secondary outcome was the rate of percutaneous 4.5\u2010rURS assistance required to successfully perform T&amp;TGW.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The stone\u2010free rate was 81.2%, including no residual fragments in 72.3% of patients. T&amp;TGW was successful in 119 (96.6%) patients, which was necessary using retrograde fURS\u2010assisted fluoroscopic guidance in 61 (49.5%) patients, whereas 4.5\u2010rURS assistance was required in 58 (47.1%) patients. Guidewire migration under the renal pelvis mucosa was found in 10 (8.1%) patients. Preoperative factors associated with failed T&amp;TGW using retrograde fURS\u2010assisted fluoroscopic guidance were the puncture site in the lower calyx (odds ratio, 0.125; confidence interval, 0.043\u20130.364;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001) and the presence of preoperative hydronephrosis in the renal calyx of the puncture site (odds ratio, 0.261; confidence interval, 0.093\u20130.730;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.011).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Percutaneous 4.5\u2010rURS assistance facilitated successful T&amp;TGW in cases of failed access under retrograde fURS\u2010assisted fluoroscopic guidance in supine mini\u2010ECIRS and a useful option to find a migrated guidewire in the wrong direction.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/iju.70099","type":"journal-article","created":{"date-parts":[[2025,5,11]],"date-time":"2025-05-11T02:29:13Z","timestamp":1746930553000},"page":"1056-1063","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Role and Efficacy of Percutaneous 4.5\u2010Fr Semi\u2010Rigid Ureteroscope While Creating Through\u2010And\u2010Through Guidewire Passage During Minimally Invasive Endoscopic Combined Intrarenal Surgery in the Supine Position; Retrospective Study at a Single Institution"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8818-952X","authenticated-orcid":false,"given":"Takaaki","family":"Inoue","sequence":"first","affiliation":[{"name":"Department of Urology and Stone Center Hara Genitourinary Hospital  Hyogo Japan"},{"name":"Division of Urology, Department of Surgery Related Kobe University Graduate School of Medicine  Hyogo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9968-7468","authenticated-orcid":false,"given":"Shuzo","family":"Hamamoto","sequence":"additional","affiliation":[{"name":"Department of Urology, Medical School Nagoya City University Graduate School of Medical Sciences  Nagoya Aichi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0215-2617","authenticated-orcid":false,"given":"Shinsuke","family":"Okada","sequence":"additional","affiliation":[{"name":"Department of Urology Gyotoku General Hospital  Chiba Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2207-7119","authenticated-orcid":false,"given":"Naoto","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Department of Urology and Stone Center Hara Genitourinary Hospital  Hyogo 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