Condition: Urolithiasis · Sponsor: The First Affiliated Hospital of Guangzhou Medical University
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.
This description comes directly from the study's public registry record.
Guohua Zeng, Ph.D and M.D · +8613802916676 · gzgyzgh@vip.tom.com
Wen Zhong, Ph.D and M.D · +8613631320020 · gzgyzhongwen@163.com
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| Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University | Guangzhou, Guangdong, China | Recruiting |
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Source record: clinicaltrials.gov/study/NCT06438497