Actively Recruiting
The Effect of Different Body Positions and Channel Sheaths on RIRS
Led by The First Affiliated Hospital of Guangzhou Medical University · Updated on 2024-09-24
120
Participants Needed
1
Research Sites
23 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Retrograde flexible ureteroscopy (RIRS) is currently the first-line treatment for renal stones \< 2cm. Lower pole renal stones(LPS) are a difficult problem for urologists. The flexible negative pressure suction ureteral sheath(f-UAS) can facilitate RIRS to flush out the fragments and dust in time, and provide a clear vision and reduce the renal pelvis pressure(RPP) during operation.Standard lithotomy position is the most commonly used position for RIRS. Besides, T-tilt position is also available for RIRS in special cases. Investigators were inspired by this and proposed the lateral position, which is available in cases of LPS.In long-term practice, investigators have found that the change of position and the use of f-UAS can improve stone-free rate(SFR). Investigators aimed to conduct a prospective randomized controlled trial to compare the SFR of different positions and different ureteral sheaths.
CONDITIONS
Official Title
The Effect of Different Body Positions and Channel Sheaths on RIRS
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Lower pole renal stones with a diameter of 10 to 20 mm
- American Society of Anesthesiologists (ASA) score I, II, or III
- Adult patients aged 18 to 70 years
You will not qualify if you...
- Ureteric stricture
- Urethral deformity
- Renal malformation, including horseshoe kidney, ectopic kidney, and transplanted kidney
- Pregnancy
- Multiple stones in different calyces, including upper and middle pole stones
AI-Screening
AI-Powered Screening
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Trial Site Locations
Total: 1 location
1
Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University
Guangzhou, Guangdong, China, 510230
Actively Recruiting
Research Team
G
Guohua Zeng, Ph.D and M.D
CONTACT
W
Wen Zhong, Ph.D and M.D
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
4
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