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Single-session bilateral supine percutaneous nephrolithotomy: Safety and efficacy
Mahmoud F Rohiem1, Ahmed H Gabr2,3, Mostafa Magdi Ali2
1Department of Urology, Port-Said University Hospitals, Port-Said, Egypt.
Urologia
|December 4, 2025
Summary
Single-session supine bilateral percutaneous nephrolithotomy (BPCNL) is a safe and effective treatment for bilateral renal stones. This complex procedure requires expert surgeons in tertiary centers for optimal outcomes.
Area of Science:
- Urology
- Nephrology
- Surgical Innovation
Background:
- Bilateral renal stones pose a significant treatment challenge.
- Percutaneous nephrolithotomy (PCNL) is a standard treatment for large kidney stones.
- Supine positioning for PCNL offers potential advantages in specific patient populations.
Purpose of the Study:
- To evaluate the safety and efficacy of single-session supine bilateral percutaneous nephrolithotomy (BPCNL).
- To assess outcomes in patients with bilateral renal stones treated with this technique.
Main Methods:
- Retrospective identification of 52 patients with bilateral renal stones (>2cm, <5cm) treated with single-session supine BPCNL.
- Inclusion criteria focused on stones mainly located in the renal pelvis.
- Stone-free status defined as remaining fragments ≤2mm on CT scan.
Main Results:
- A primary stone-free rate of 75% was achieved.
- Temporary postoperative changes in serum creatinine and glomerular filtration rate normalized within one month.
- Mean operative time was 126.5 minutes, with a mean hemoglobin drop of 1.9 g/dL. 13.4% required ancillary procedures.
Conclusions:
- Single-session supine bilateral PCNL demonstrates safety and efficacy for treating bilateral renal stones.
- The procedure is complex and necessitates performance by experienced surgeons in specialized centers.
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