Ces Urol 2024, 28(4):228-233 | DOI: 10.48095/cccu2024033

Percutaneous nephrolithotomy in modified supine position

Hana Dittrichová, Pavel Hanek

Urologické oddělení, Oblastní nemocnice Příbram, a. s.

Dittrichová H, Hanek P. Percutaneous nephrolithotomy in modified supine position.

Aim: To present our department's experience with percutaneous nephrolithotomy in a modified supine position.

Materials and Methods: During the observed period from January 1, 2020, to May 31, 2023, 93 percutaneous nephrolithotomies were performed in a modified supine position on 80 patients. A retrospective data analysis was conducted. The factors studied included stone size, Guy's stone score, operative time, stone-free rate, complications, fluoroscopy time, use of lithotripsy, and the need for blood transfusion after the procedure.

Result: The average size of the treated stone was 261 mm². In 31 cases, we dealt with multiple stones, partially cast stones (Guy's stone score 3) in 17 cases, and completely cast stones in 4 cases (Guy's stone score 4). The stone-free rate in our cohort was 78%. Lithotripsy of the stone was necessary in 59 cases (63%). Complications of grade II according to the Clavien-Dindo classification were recorded in 2 cases (2%), grade IIIa in 1 case (1%), and grade IIIb in 8 cases (9%). The average operative time was 44 minutes, and the average fluoroscopy time was 2 minutes and 33 seconds. Blood transfusion after the procedure was required in 2 cases (2%).

Conclusion: Percutaneous nephrolithotomy in a modified supine position is a safe and effective method for treating nephrolithiasis, with the advantage of reduced operative time due to the stationary position of the patient during the procedure.

Keywords: Modified supine position, nephrolithiasis, percutaneous nephrolithotomy.

Received: November 4, 2024; Revised: December 4, 2024; Accepted: December 5, 2024; Published: December 18, 2024