Retrograde Intrarenal Surgery (RIRS) With Suction

Retrograde Intrarenal Surgery (RIRS) With Suction Using Direct in Scope Suction (DISS) Versus Flexible and Navigable Access Sheath (FANS): Randomized Controlled Study

Suction has been initially used in endoscopic stone management for more than 25 years during PCNL, but the emergence of new devices applying suction through patented ureteroscopes, ureteral access sheaths (UAS) and ureteral catheters led to application of suction in URS/RIRS. The application of ureteral access sheath (UAS) in RIRS can improve surgical vision , reduce intrarenal pressure (IRP) ,and decrease postoperative infectious complications .

Inclusion Criteria:

• Single stone
• Medium sized stone ≤ 3 cm
• Renal stone
• age group > 18

Exclusion Criteria:

• multiple renal stones
• stone size > 3 cm
• age group < 18
• solitary kidney
• Obstruction distal to the stone.
• urinary tract infection