mesocolic window
Surgical opening created in the mesocolon to allow passage of bowel segments during reconstruction procedures.
Full Definition
A mesocolic window is a carefully created opening through the mesocolon, typically the transverse mesocolon, to facilitate passage of bowel segments during complex reconstructive procedures. This technique is commonly employed in gastric bypass operations, pancreaticoduodenectomy reconstructions, and other procedures requiring retrocolic positioning of anastomoses. The window must be sized appropriately to prevent herniation while avoiding excessive tension on mesenteric vessels. Proper creation and closure of mesocolic windows is critical to preventing internal hernias and maintaining adequate blood supply.
Usage
Usage note: Specify location (transverse, sigmoid) when documenting creation.
In Context
- "A mesocolic window was created to allow retrocolic passage of the gastrojejunostomy." — operative report
- "The mesocolic window was closed with non-absorbable sutures to prevent internal herniation." — surgical procedure note