An interventional study of Renal stent and Flexible uretroscopy in Ureteric Stone, sponsored by Menoufia University. Completed at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2025-01-07.
Sponsored by Menoufia University · Not applicable, Interventional, and Treatment
The miniaturization of endourological instruments and improvements in laser lithotripsy have revolutionized the approach to renal stones . - Flexible URS has become popular with urologists, as it is easy to learn, is associated with high stone-free rates, and is acceptable to patients. Firstly described in 1964 by Marshall, the uretroscope was only passively deflectable and did not include working channel. - Although the first successful procedure in humans with a ureteroscope integrating active deflection has been reported by Takayasu, it was not until 1987 that Demetrius Bagley introduced flexible ureteroscopy as we know it today ).] - two types of flexible uretroscopy can be distinguished : fiberoptic and digital flexible URS. The difference between them is the image relay and light transmission. - Now either to use ureteral access sheath (AS) or not , but usage of AS decrease intrarenal pressure and clear vision by drainage of dust , so , for access of AS stent better to be inserted prior to the procedure ) So, there are little publications regarding the optimal timing of the stent In this study we will assess the feasibility of passage AS after two versus four weeks from stent insertion
The miniaturization of endourological instruments and improvements in laser lithotripsy have revolutionized the approach to renal stones . - Flexible URS has become popular with urologists, as it is easy to learn, is associated with high stone-free rates, and is acceptable to patients. Firstly described in 1964 by Marshall, the uretroscope was only passively deflectable and did not include working channel. - Although the first successful procedure in humans with a ureteroscope integrating active deflection has been reported by Takayasu, it was not until 1987 that Demetrius Bagley introduced flexible ureteroscopy as we know it today ).] - two types of flexible uretroscopy can be distinguished. The difference between them is the image relay and light transmission. - Now either to use ureteral access sheath (AS) or not , but usage of AS decrease intrarenal pressure and clear vision by drainage of dust , so , for access of AS stent better to be inserted prior to the procedure ) So, there are little publications regarding the optimal timing of the stent In this study we will assess the feasibility of passage AS after two versus four weeks from stent insertion
84 studies on the registry are indexed under Ureterolithiasis; 19 are open to participants now.
This study's enrollment of 60 is below the median of 101 across 66 interventional studies indexed under Ureterolithiasis.
Browse Ureterolithiasis studies →Menoufia University is the lead sponsor of 199 studies on the registry; 54 are open to participants now.
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Exclusion Criteria:
Renal stent for 2 weeks prior flexible uretroscopy
Procedure: Renal stent · Device: Flexible uretroscopy
Renal stent for 4 weeks prior flexible uretroscopy
Procedure: Renal stent · Device: Flexible uretroscopy
Renal stent before flexible uretroscopy
Renal stent for 2 weeks prior flexible uretroscopy
passage of access sheath after dilation of the ureter by DJ 2 vs 4 weeks
Patients will classified in two groups, one will insert DJ for two weeks and the other insert DJ for four weeks then remove it and trial to insert access sheath for flexible uretroscopy duriing passage of the sheath the ureteric dilitation will be assessed if the sheath pass or not measure so , the ability of the ureteric dilitation to obtain the sheath is it dilated enough after 2 or 4 weeks
Time frame: 6 months
Ran from Jan 2024 to primary completion in Dec 2024, 11 months.
Of 36 non-industry interventional studies with no phase under Ureterolithiasis, half reached primary completion within 19 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 30. This study's 11 months is below that.
Counting every sponsor, half of 38 studies reached it within 20 months; a quarter within 11 and three quarters within 30.
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This study is completed, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.
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