Carbon dioxide based nephroscopy: a trick for laparoscopic pyelolithotomy
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Updated: Jun 27, 2026

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis
Published on: July 8, 2025
Barry Michael Mason1, David Hoenig
1Department of Urology, Montefiore Medical Center, Bronx, New York 10467, USA.
Abstract:
For certain selected cases, laparoscopic pyelolithotomy is a practical and effective method to manage renal stone disease. One such case is that of an ectopically located pelvic kidney with a large stone burden. Here, we describe our technique and provide what we feel is a trick to performing a key part of this procedure--flexible nephroscopy while using carbon dioxide gas to "inflate" the collecting system.
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