학술논문
Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones
Document Type
article
Source
Journal of Urological Surgery, Vol 6, Iss 3, Pp 201-206 (2019)
Subject
Language
English
ISSN
2148-9580
Abstract
Objective:To investigate the effect of preoperative non-contrast computed tomography (NCCT) findings and peroperative laser probe selection on total laser time, energy level and ureterorenoscopy (URS) time for distal ureteral stones.Materials and Methods:We prospectively evaluated 72 patients with single distal ureteral stone measuring 5-25 mm in diameter on NCCT, who were treated with ureteroscopic lithotripsy (URSL) between June 2015 and October 2016. The patients were divided into two groups according to probe selection as 365 μm and 550 μm groups. Stone diameters, stone volume and Hounsfield units (HU) measured on NCCT, and URSL findings were noted at the end of the treatment. These findings were compared between the groups. Also the possible predictive value of NCCT findings was evaluated for URSL data.Results:There were 17 patients in the 365 μm and 55 patients in the 550 μm groups. There was no significant difference in URSL success rate and other predictive data between the groups. However, among the peroperative data, laser time, laser energy level and laser energy/time ratio were significantly lower in the 365 μm group compared to the 550 μm group (p