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Measurement of Resistance During UAS Insertion Procedure in RIRS

NCT03919227 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 120

Last updated 2019-04-18

No results posted yet for this study

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 different Bladder Filling Degree was accompanied by different Resistance During UAS Insertion Procedure in RIRS, which leads to the difference in success rate of UAS insertion.The investigator aims to perform a prospective and randomized controlled trial comparing the success rate of UAS insertion procedure under different bladder filling degree,and discuss the relationship between insertion resistance and ureter injury.

Conditions

  • Urolithiasis

Interventions

PROCEDURE

empty bladder before inserting UAS

In group 1, investigator empty the bladder of urine with a catheter before inserting UAS, so that we can see if the empty bladder is easier for inserting UAS.

PROCEDURE

do not interfere with the filling degree of bladder

In group 2, investigator does not interfere with the filling degree of bladder before inserting UAS, so that we can see if the filling degree of bladder has impact on the insertion of UAS.

Sponsors & Collaborators

  • Guohua Zeng

    lead OTHER

Principal Investigators

  • Guohua Zeng, Ph.D and M.D · The First Affiliated Hospital of Guangzhou Medical University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-09-12
Primary Completion
2020-04-30
Completion
2020-06-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03919227 on ClinicalTrials.gov