NCT06761378

Ideal Time of Stenting Prior to Ureteral Access Sheath for Stone Disease

Ideal Time of Stenting Prior to Ureteral Access Sheath for Stone Disease , Two vs Four Weeks Prospective Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 60 (actual)
• Sponsor: Menoufia University · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

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

Detailed description

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

Conditions

• Ureteric Stone

Interventions

Type	Name	Description
PROCEDURE	Renal stent	Renal stent before flexible uretroscopy
DEVICE	Flexible uretroscopy	Renal stent for 2 weeks prior flexible uretroscopy

Timeline

• Start date: 2024-01-01
• Primary completion: 2024-12-01
• Completion: 2024-12-04
• First posted: 2025-01-07
• Last updated: 2025-01-07

Locations

1 site across 1 country: Egypt