A comparative study between the Usage of Flexible and Navigable Suction Ureteral Access Sheath (FANS) versus Traditional Access sheath in RIRS : Randomized controlled trial .
Age ≥14 years old in patients not known to have stone forming medical conditions.
Renal stones diameter of ≤2 cm confirmed by CT with all types of configurations (branching & non-branching).
Non - recurrent cases with no history of previous open renal surgeries or PCNL with normal renal anatomy.
Patients with non - infected urine analysis.
Patients with abnormal urinary tract anatomy (such as horseshoe kidney or ileal conduit).
Patients with medical conditions promoting stone formation (hyperparathyroidism - gout).
Patients with history of stones on the same side with previous open surgical intervention or PCNL .
Patients with e-GFR < 60 ml / min.
Yosseif elhousseiny ammar ahmed
Lead sponsor
Cairo University
Sponsor institution