{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T09:35:54Z","timestamp":1785404154461,"version":"3.56.0"},"reference-count":33,"publisher":"Wiley","license":[{"start":{"date-parts":[[2019,7,4]],"date-time":"2019-07-04T00:00:00Z","timestamp":1562198400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Keimyung University Dongsan Medical Center"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2019,7,4]]},"abstract":"<jats:p><jats:italic>Objective.<\/jats:italic>We aimed to investigate the role of antegrade irrigation via percutaneous nephrostomy on surgical outcomes in retrograde ureteroscopy in patients with upper ureter stones.<jats:italic>Materials and Methods.<\/jats:italic>In this retrospective study, we analyzed 134 patients who underwent retrograde semirigid ureteroscopy for upper ureter stones between August 2012 and December 2017. Patients were divided into two groups: retrograde irrigation group (conventional URS) and antegrade irrigation group (using percutaneous nephrostomy). Operation time, postoperative hospital stay, complications, and stone-free rate were measured for each patient after ureteroscopy.<jats:italic>Results.<\/jats:italic>The mean age in the retrograde irrigation and antegrade irrigation groups was 53.3 and 60.7 years, respectively (p=0.007). The operation time was 60.8 min vs. 43.0 min (p=0.002), and stone-free rate was 82.0 % vs. 95.5 % (p=0.033). Stone size, laterality, the proportion of male patients, and urinary tract infection prevalence were comparable between the groups. In the subgroup analysis of stone size &gt;10 mm, the antegrade irrigation group had a shorter operation time and a higher stone-free rate. For stone size of 5\u201310 mm, operation time in the antegrade irrigation group was shorter and the stone-free rate between the two groups was comparable.<jats:italic>Conclusion.<\/jats:italic>Antegrade irrigation via percutaneous nephrostomy during ureteroscopy has a higher stone-free rate with a shorter operation time without an increased urinary tract infection risk. Therefore, if percutaneous nephrostomy is necessary before ureteroscopy, antegrade irrigation of external fluid via percutaneous nephrostomy is strongly recommended.<\/jats:p>","DOI":"10.1155\/2019\/8657609","type":"journal-article","created":{"date-parts":[[2019,7,4]],"date-time":"2019-07-04T23:32:08Z","timestamp":1562283128000},"page":"1-8","source":"Crossref","is-referenced-by-count":9,"title":["The Role of Antegrade Irrigation via Percutaneous Nephrostomy on Surgical Outcomes in Semirigid Ureteroscopy among Patients with Upper Ureteral Stones"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4954-3543","authenticated-orcid":true,"given":"Wonho","family":"Jung","sequence":"first","affiliation":[{"name":"Department of Urology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea"},{"name":"School of Medicine and Institute for Medical Science, Keimyung University, Dongsan Medical Center, Daegu, Republic of 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