Gastric calibration bougie
A calibrated semi-rigid tube (commonly silicone, 32-40 Fr) passed transorally along the lesser curvature to size the residual gastric tube before stapling.
How it is used
Calibration of the gastric sleeve during laparoscopic or open sleeve gastrectomy, and in pouch creation for gastric bypass.
Clinical tip
A network meta-analysis (15 studies, 2,848 patients) found most centers use <40 Fr (often 36 Fr) to limit long-term weight regain, while ≥40 Fr is associated with fewer leaks without harming 3-year weight loss.
Sources
This entry is part of the Instriq catalog, researched and written per specialty from real web research -- never generated or invented without verification -- and reviewed skeptically and independently before publication. How this catalog is written.
Image: Snowden5589, Wikimedia Commons. License CC BY-SA 4.0. View original source.
History
Added to the catalog on 2026-10-16.
Dates derived from the project's public version-control history on GitHub, not a live collaborative edit log.