The value of constant drainage outside the ureteric access sheath in flexible ureteroscopy (report 55 cases)

Abstract

Objective To evaluate the validity of constant drainage outside the ureteric access sheath and preventing postoperative SIRS in flexible ureteroscopy and laser lithotripsy. Methods From May 2015 to March 2016, a total of 55 patients were treated by flxible ureteroscopy and laser lithotripsy in our hospital. Constant drainage outside the ureteric access sheath by a 4F ureteral catheter was performed during the operation to decrease the pressure of the renal pelvis. Holmium laser(10~12 Hz, 0.8~1.2 J )was used to perform laser lithotripsy. Calculi were comminuted to less than 2 mm, or removed with reticular basket. Double-J stent and a ureter catheter would be setup in the end of the procedure. Results The operation time was 52~108 min, mean (64±15) min, and the lithotripsy stay was 25~52 min, mean(40.3±8.5)min. All operations were performed successfully with less bleeding, no fever and no hematosepsis in the patients after the operations. No residual stones were detected by KUB one day before discharged. The average time in hospital after operation was(2.3±0.5)days. And the Double-J stents were removed in 3~4 weeks after operation. Conclusions Constant drainage outside the ureteric access sheath is a safe and effective procedure in flexible ureteroscopy for less infection complication. Key words: Ureteral Calculi; Ureteroscopes; Lithotripsy