title: [The Efficacy of a Released Ultrasonic Lithotripsy in Percutaneous Nephrolithotomy : Randomized Trial Comparing Swiss LithoClast® Master Versus Swiss LithoClast®].
abstract: We prospectively randomized total 29 patients with renal stones into two groups between Aug 2014 and March 2016. The US group was treated using a ultrasonic lithotripter (Swiss LithoClast® Master) and the PN group was treated with a pneumatic lithotripter (Swiss LithoClast® ). We compared treatment outcomes in these groups. The US group consisted of 17 patients and the PN group 12 patients. There was no significant difference between the groups in baseline characteristics (age, sex, body mass index, side, stone size, and density). There was no significant difference in total operative time (p＝0.63), stone-free rate (p＝ 0.19), hemoglobin deficit (p＝0.49), or rate of postoperative sepsis (p＝0.99) between the two groups. However, intracorporal stone disintegration and removal time was significantly shorter in the US group than the PN group (p＝0.029). These results suggest that the ultrasonic lithotripter can be superior to the existing pneumatic lithotripter in saving intracorporal stone disintegration and removal time in percutaneous nephrolithotomy.
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.|The Department of Urology, Kyoto University Hospital.
authors.forename: Masashi
authors.initials: M
authors.lastname: Kubota
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.
authors.forename: Toru
authors.initials: T
authors.lastname: Kanno
authors.affiliation: The Department of Medical Engineering, Ijinkai Takeda General Hospital.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Murata
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Funada
authors.affiliation: The Department of Urology, Kansai Electric Power Hospital.
authors.forename: Hiromasa
authors.initials: H
authors.lastname: Sakamoto
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Nishiyama
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.
authors.forename: Takashi
authors.initials: T
authors.lastname: Okada
authors.affiliation: The Depatement of Urology, Rakuwakai Otowa Hospital.
authors.forename: Toshiya
authors.initials: T
authors.lastname: Akao
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Higashi
authors.affiliation: The Department of Urology, Ijinkai Takeda General Hospital.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Yamada
mesh_terms: D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery; D008096:Lithotripsy / Q000295:instrumentation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009403:Nephrostomy, Percutaneous / Q000295:instrumentation / Q000379:methods*; D061646:Operative Time; D016896:Treatment Outcome