Retrograde intrarenal surgery: Flexible optic devices and lasers fragment kidney stones during this operation. In this surgery, an ureteral access sheath is recommended to be used.
Study summary
This study aims to compare the efficacy and safety, the ratio of stone-free rates, and complications of two types of access sheaths used in retrograde intrarenal surgery to treat upper urothelial stones. The access sheath types are those with vacuum aspiration and the conventional ones.
Eligibility
Sex
ALL
Min age
18 Years
Max age
85 Years
Healthy volunteers
No
Inclusion Criteria:
* Patients over 18 years of age
* Patients below 85 years of age
* Patients with 11-13 FR conventional/vacuum-assisted ureteral access sheath (UAS) during retrograde intrarenal surgery
Exclusion Criteria:
* Patients with non-sterile preoperative urine culture
* Patients with renal anatomic anomalies
* Patients with a solitary (single) kidney
* Patients with insufficient data
* Patients under the age of 18, above the age of 85
* Patients without an UAS during RIRS
* Patients without 11-13Fr UAS during RIRS
Primary outcome measure(s)
Stone free rates — Stone-free status will be checked by performing a non-contrast abdominal CT scan 1 month after the operation. Presence/absence of residual fragments in postoperative imaging, if any, diameter of longest axis in mm.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
We use cookies to analyse site traffic and improve your experience. With your consent, we may also use cookies for advertising. You can change your choice at any time.