Optimal Shock Wave Rate for Shock Wave Lithotripsy in Urolithiasis Treatment: A Prospective Randomized Study
문근배, 임고산, 황재승, 임채홍, 이제원, 손정환, 장석흔,
소속 상세정보
문근배 ( Moon Keun-Bai )
Bundang Jesaeng General Hospital Department of Urology
임고산 ( Lim Go-San )
Bundang Jesaeng General Hospital Department of Urology
황재승 ( Hwang Jae-Seung )
Bundang Jesaeng General Hospital Department of Urology
임채홍 ( Lim Chae-Hong )
Bundang Jesaeng General Hospital Department of Urology
이제원 ( Lee Jae-Won )
Bundang Jesaeng General Hospital Department of Urology
손정환 ( Son Jeong-Hwan )
Bundang Jesaeng General Hospital Department of Urology
장석흔 ( Jang Seok-Heun )
Bundang Jesaeng General Hospital Department of Urology
KMID : 0358320120530110790
Abstract
Purpose: We aimed to compare the effects of a fast shock wave rate (120 shocks per minute) and a slow shock wave rate (60 shocks per minute) on the shock wave lithotripsy (SWL) success rate, patient’s pain tolerance, and complications.
Materials and Methods: A total of 165 patients with radiopaque renal pelvis or upper ureter stones were included in the study. Patients were classified by use of a random numbers table. Group I (81 patients) received 60 shock waves per minute and group II (84 patients) received 120 shock waves per minute. For each session, the success rate, pain measurement, and complication rate were recorded.
Results: No statistically significant differences were observed in the patients according to age, sex, body mass index, stone size, side, location, total energy level, or number of shocks. The success rate of the first session was greater in group I than in group II (p=0.002). The visual analogue pain scale was lower in group I than in group II (p=0.001). The total number of sessions to success and the complication rate were significantly lower in group I than in group II (p=0.001).
Conclusions: The success rate of SWL is dependent on the interval between the shock waves. If the time between the shock waves is short, the rate of lithotripsy success decreases, and the pain measurement score and complications increase. We conclude slow SWL is the optimal shock wave rate.
키워드
Lithotripsy; Pain measurement; Urinary calculus
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