Evaluation of Retrograde Intra Renal Surgery in the T-tilted Position

Recruiting now · Not applicable

Conditions studied: Stone, Kidney

In brief

To evaluate the effect of the T-tilted position on the stone-free rate compared to the standard lithotomy position in retrograde intrarenal surgeries. Common positions include the Trendelenburg position, where the patient is tilted head-down to help gravity move stones from the upper calyces to the renal pelvis, and the modified lateral decubitus position, which improves access to the lower renal poles. A more recent approach, the modified T-tilt position, combines a slight Trendelenburg tilt with lateral positioning, offering optimal access to both the upper and lower calyces while maintaining patient comfort

Key facts

Study ID

NCT06860113

Run by

Ain Shams University

People needed

160

Starts

2025-03-01

Expected to finish

2025-12-31

Last updated by the study team

2025-07-17

Who can join

Age: 16 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• All patients above the age of 16 years of either sex who did not have a pre-existing ureteral stent presented to the Urology clinic in our university hospitals with kidney stones with size up to 2.5cm (estimated by CTUT as the greatest dimension or the summation of the greatest dimensions).

You may not qualify if…

• Previous open renal surgery or renal trauma.
• Patients with renal anomalies.
• Patients with untreated or active UTI.
• Patients who suffer from medical conditions that preclude the application of Trendelenburg position (lung disease, congestive heart failure).

Where it is running

• AinShams university hospitals — Cairo, Abbassia, Cairo, Egypt (enrolling)

Full record on ClinicalTrials.gov

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