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• W4249210366 abstract "You have accessJournal of UrologyTechnology & Instruments: Ureteroscopy1 Apr 20101275 URETEROSCOPIC EVALUATION AND TREATMENT OF CHRONIC UNILATERAL HEMATURIA: A 23-YEAR EXPERIENCE Motoo Araki, Shinya Uehara, Toyohiko Watanabe, Takashi Saika, Yasutomo Nasu, and Hiromi Kumon Motoo ArakiMotoo Araki More articles by this author , Shinya UeharaShinya Uehara More articles by this author , Toyohiko WatanabeToyohiko Watanabe More articles by this author , Takashi SaikaTakashi Saika More articles by this author , Yasutomo NasuYasutomo Nasu More articles by this author , and Hiromi KumonHiromi Kumon More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2010.02.846AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Chronic unilateral hematuria is characterized by grosshematuria that cannot be diagnosed by conventional radiology and hematologic tests. It is a difficult problem of diagnosis and treatment. The purpose of this study is to analyze the safety and efficacy of ureteropyeloscopy for treatment of chronic unilateral hematuria. METHODS We retrospectively reviewed 109 patients with chronic unilateral hematuria from 1987 to 2009. 22 years were divided into two periods (I: 1987-1997.10, II: 1997.11-2009) because larger scopes, which required ureteral dilation, were utilized in the I period. Since November/1997 (the II period), our technique has been established using a 6.9 Fr semi-rigid ureteroscope (Multi-scope, Wolf, Germany) and 6.9Fr flexible ureteroscope (URF-P3, Olympus, Japan). Distal to middle ureter is evaluated with a semi-rigid ureteroscope without a guidewire. Subsequently, the flexible ureteroscope is advanced into the upper ureter to renal pelvis, while a lowest flow pressure of irrigant is kept by using Uromat RESULTS One hundred and nine (59 male, 50 female) patients were identified, with a median age of 37 (range 14-80) years. The median preoperative duration of grosshematuria was 5 (range 1-144) months. The entire collecting system was completely inspected in all patients, including 62 (57%) minute venous rupture (MVR), 21 (19%) hemangioma, 5 (5%) papillary tumor, 3 (3%) varix, 1 (1%) calculus and 17 (16%) no lesions. The incidence of ″no lesions″ was less in the recent 12 years (9%) than the first 10 years (27%), while the incidence of MVR increased from 41 to 66%. All patients, except one patient who underwent nephroureterectomy for urothelial cancer following ureteropyeloscopy, were treated successfully endoscopically. Only 3/109 (3%) experienced recurrent bleeding. No recurrent bleeding was encountered in the recent 13 years. CONCLUSIONS Ureteropyeloscopy is highly useful for evaluation and treatment of chronic unilateral hematuria with minimum complications. The advent of miniaturized ureteroscopes with technical improvement has contributed to a more accurate etiology of chronic unilateral hematuria. Okayama, Japan© 2010 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 183Issue 4SApril 2010Page: e494 Advertisement Copyright & Permissions© 2010 by American Urological Association Education and Research, Inc.MetricsAuthor Information Motoo Araki More articles by this author Shinya Uehara More articles by this author Toyohiko Watanabe More articles by this author Takashi Saika More articles by this author Yasutomo Nasu More articles by this author Hiromi Kumon More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ..." @default.
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• W4249210366 title "1275 URETEROSCOPIC EVALUATION AND TREATMENT OF CHRONIC UNILATERAL HEMATURIA: A 23-YEAR EXPERIENCE" @default.
• W4249210366 doi "https://doi.org/10.1016/j.juro.2010.02.846" @default.
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