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/Distal Ureter Taslarinda Lazer Probunun ve Bilgisayarli Tomografi Bulgularinin Ureterorenoskopik Lazer Litotripsi Basarisi, Lazer Suresi, Lazer Enerji Duzeyi ve Operasyon Suresi Uzerine Etkileri

• Published in: Journal of urological surgery 2019-09, Vol.6 (3), p.201
• Main Authors: Celik, Serdar, Bozkurt, Ozan, Basara, Isil, Gurboga, Ozgur, Demir, Omer, Secil, Mustafa, Esen, Adil
• Format: Article
• Language: English
• Subjects: Analysis; CAT scans; Investigations; Lithotripsy; Tomography
• ISSN: 2148-9580; 2148-9580
• DOI: 10.4274/jus.galenos.2018.2392

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 [micro]m and 550 [micro]m 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 [micro]m and 55 patients in the 550 [micro]m 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 [micro]m group compared to the 550 [micro]m group (p