Optimal Passive Dilation Time in Retrograde Intrarenal Surgery

Completed

• Conditions: Stone, Kidney; Urolithiasis
• Interventions: Procedure: Retrograde intrarenal surgery after DJ stent placement

• Registration Number: NCT05340088
• Lead Sponsor: Ankara Training and Research Hospital

Brief Summary

Retrograde intrarenal surgery (RIRC) is used as standard treatment for stones less than 2 cm. In some cases, the ureteral access sheath cannot be placed due to ureteral stricture. In this case, a double j stent (DJ) is placed to passively dilate the ureter, and the RIRC is postponed for post-dilatation. The aim of the study is to determine the optimal time for RIRC operation in cases where a double j stent was placed for passive dilatation.

Detailed Description

Not available

Study Timeline

• Study Start: 2021-09-01
• Primary Completion: 2022-01-01
• Study Completion: 2022-02-01
• Study First Submitted: 2022-03-30
• Status Verified: 2022-04
• Study First Submitted QC: 2022-04-20
• Last Update Submitted: 2022-04-20
• Study First Posted: 2022-04-21
• Last Update Posted: 2022-04-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Patients with a DJ stent for passive dilatation and subsequent RIRC

Exclusion Criteria

• Urinary tract infection, patients with ureteral compression and a history of pelvic radiotherapy, urinary system tumor

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Patients who underwent RIRC for 2-4 weeks after DJ stent placement for passive dilatation	Retrograde intrarenal surgery after DJ stent placement	Patients who underwent RIRC for 2-4 weeks after DJ stent placement for passive dilatation
Patients who underwent RIRC for 4-6 weeks after DJ stent placement for passive dilatation	Retrograde intrarenal surgery after DJ stent placement	Patients who underwent RIRC for 4-6 weeks after DJ stent placement for passive dilatation

Primary Outcome Measures

Name	Time	Method
BMI in kg/m^2	3 Months	BMI in kg/m\^2the kidney, operation time(minute)
serum creatinine mg/dl	3 Months	serum creatinine mg/dl

Secondary Outcome Measures

Name	Time	Method
mm size of the stone	3 Months	mm size of the stone
localization of the stone in the kidney,	3 Months	localization of the stone in the kidney,

Trial Locations

Locations (1)

Ankara Training and Research Hospital; 🇹🇷 Ankara, Altindag, Turkey