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Dr. Mohamed Abdel_rahman Alhefnawy :: Publications: |
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| Title: | Comparative evaluation of flexible and navigable suction sheath
(FANS), percutaneous nephrostomy (PCN), and conventional
ureteral access sheath (UAS) during retrograde intrarenal surgery: a
randomized controlled trial |
| Authors: | M A Alhefnawy; · T. M. El-Karamany; ;M Farag; ;M Mobarak; · I S A Mohamed · H Shaher |
| Year: | 2026 |
| Keywords: | Retrograde intrarenal surgery ;Flexible and navigable suction · Percutaneous nephrostomy; Ureteral access sheath ;Stone-free rate ;Renal stones |
| Journal: | World Journal of Urology |
| Volume: | Not Available |
| Issue: | Not Available |
| Pages: | 44:322 |
| Publisher: | Springer nature |
| Local/International: | International |
| Paper Link: | |
| Full paper | Mohamed Abdel_rahman Alhefnawy_903f843c-5f2b-469c-89f2-74dbe89a9bf4.pdf |
| Supplementary materials | Not Available |
| Abstract: |
Purpose Optimizing drainage during retrograde intrarenal surgery (RIRS) is crucial for procedural efficacy and safety. Flexible and navigable suction ureteral access sheath (FANS) offers active intrarenal suction without external access, while percutaneous nephrostomy (PCN) provides reliable but invasive drainage. This study compared the efficacy and safety of FANS versus PCN tube drainage during RIRS as compared to conventional ureteral access sheath (UAS). Methods This randomized controlled trial included 217 adult patients with renal stones (14–27 mm) undergoing RIRS. Patients were randomized into three groups: (UAS, n=72), PCN (n=72), and FANS (n=73). Outcomes assessed included operative time, stone-free rate (SFR), complications, and postoperative recovery. Results SFR was significantly higher with PCN (97.2%) and FANS (98.6%) versus UAS (81.9%; p |
