{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T16:07:58Z","timestamp":1780934878064,"version":"3.54.1"},"reference-count":11,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T00:00:00Z","timestamp":1772668800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Surg."],"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To evaluate the safety and clinical performance of an F21 multipurpose cystoscope equipped with a continuous irrigation system in routine urologic procedures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This single-center retrospective study consecutively enrolled 150 patients undergoing F21 multipurpose cystoscope\u2013assisted procedures (50 double-J stent removals, 50 retrograde 5-Fr ureteral catheterizations, and 50 BPH patients receiving PVP).BPH patients had bladder outlet obstruction (Qmax &amp;lt;10\u2005mL\/s), and major exclusions included prostate cancer and prostate volume &amp;gt;80\u2005mL.Outcomes included procedure-related complications; IPSS and Qmax were assessed preoperatively and at 3 and 6 months in the PVP cohort.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      All double-J stent removals and retrograde catheterizations were completed successfully under local anesthesia with a consistently clear operative field, and no postoperative complications were observed. All 50 PVP procedures were completed successfully; mean operative time was 65.1\u2009\u00b1\u200916.9\u2005min, blood loss was &amp;lt;60\u2005mL, postoperative irrigation averaged 17\u2005h, and catheter removal occurred on postoperative days 3\u20135. In the PVP group, Qmax increased from 6.314 preoperatively to 21.716 at 3 months and 21.006 at 6 months, while IPSS decreased from 23.540 to 4.700 and 4.420, respectively (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&amp;lt;\u20090.001). At the 3-month and 6-month postoperative follow-up time points, none of the patients developed complications such as urinary incontinence, urethral stricture, bladder neck contracture, or voiding dysfunction.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The F21 multipurpose cystoscope with continuous irrigation provides stable visualization and supports both routine cystoscopic interventions and PVP in a small-caliber platform, demonstrating favorable safety and functional outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fsurg.2026.1680966","type":"journal-article","created":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T06:56:15Z","timestamp":1772693775000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Clinical application of the F21 multipurpose cystoscope with continuous irrigation capability"],"prefix":"10.3389","volume":"13","author":[{"given":"Guihua","family":"Cao","sequence":"first","affiliation":[{"name":"Department of Urology, The People's Hospital of Leshan","place":["Leshan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Urology, The People's Hospital of Leshan","place":["Leshan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liangcheng","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Urology, The People's Hospital of Leshan","place":["Leshan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Urology, The People's Hospital of Leshan","place":["Leshan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiang","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Urology, The People's Hospital of Leshan","place":["Leshan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianping","family":"Du","sequence":"additional","affiliation":[{"name":"Department of Urology, The People's Hospital of Leshan","place":["Leshan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,3,5]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1313","DOI":"10.1016\/j.juro.2006.06.085","article-title":"Max nitze, the cystoscope and urology","volume":"176","author":"Herr","year":"2006","journal-title":"J Urol"},{"key":"B2","doi-asserted-by":"publisher","first-page":"371","DOI":"10.1111\/bju.13760","article-title":"Guideline of guidelines: non-muscle-invasive bladder 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