Почечные рефлюксы при ретроградной интраренальной хирургии

Abstract

Objective: to study renal reflux and reverse suction of irrigation fluid during retrograde lithotripsy. Patients and methods. This study was conducted at the Clinic of Urology, European Medical Center between 2021 and 2022 and included 20 urolithiasis patients who underwent retrograde lithotripsy. The volume of renal reflux was assessed by precise measurement of the amount of injected and discharged irrigation fluid. In one out of 20 patients (41-year-old male with a coral stone in the left kidney), a nephrostoma was installed before hospitalization. It was used not only as an additional drainage, but also for measuring intrarenal pressure during retrograde lithotripsy. Results. The difference between the volumes of injected and discharged irrigation fluid during retrograde lithotripsy was 29.02%. Antegrade measurement during retrograde lithorpsy with an ureteral access sheath showed that the intrarenal pressure was 80 cm of water column. In case of additional nephrostomic drainage, the volume of reverse suction of irrigation fluid was 6.7%. Conclusion. Nearly 100% of patients developed renal reflux during retrograde lithotripsy; presence of nephrostomy drainage reduced the volume of reverse suction of irrigation fluid by 4-5 times.