Under Direct Vision vs Under Non Direct Vision of Insertion of UAS in RIRS

Launched by GUOHUA ZENG · Oct 22, 2018

Keywords

ClinConnect Summary

Retrograde intrarenal surgery (RIRS) has been considered as the first-line choice for the management of \<20mm kidney stones. Insertion of a ureteral access sheath (UAS) before RIRS surgery is currently accepted as an effective method to improve the effectiveness of surgery, but can be accompanied by serious complications. In long-term clinical practice， the investigators has found that many ureteral injuries occur during UAS insertion of the ureter from ureteral orifice. And if we use rigid ureteroscopy to insert the UAS under direct vision, we can provide the UAS insertion success rate an...

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. Patients must be a suitable operative candidate for RIRS
• • 2. Age 18 to 70 years
• • 3. Normal renal function 4 .ASA score Ⅰ and Ⅱ
• • 5. Single renal stone ≤20mm or multiple stones the conglomerate diameter (additive maximal diameter of all stones on axial imaging of computed tomography) up to 20 mm
• Exclusion Criteria:
• • 1. Patients with solitary kidney
• • 2. Uncorrected coagulopathy and active urinary tract infection (UTI)
• • 3. Prior ipsilateral endourological procedure history, such as RIRS, PCNL, URS and URL
• • 4. Patients who underwent transplant or urinary diversion.
• • 5. Congenital abnormalities.