Intermediate
Technical
IVT
internal hernia
Abnormal protrusion of bowel through surgically created or natural openings within the abdomen, a serious complication of gastric bypass.
Full Definition
Internal hernia represents one of the most serious late complications following gastric bypass surgery, occurring when bowel segments herniate through surgical defects such as Peterson's space, the jejunojejunostomy mesenteric defect, or the transverse mesocolic opening. These hernias can cause bowel obstruction, ischemia, and require emergency surgery. Prevention involves careful closure of all potential hernia sites during the initial procedure.
Usage
Usage note: Distinguish from external hernias such as incisional or port site hernias in documentation.
In Context
- "CT imaging revealed an internal hernia through Peterson's space requiring urgent surgical intervention." — emergency department note
- "Meticulous closure of mesenteric defects helps prevent internal hernia formation." — surgical technique guide
Also known as
intra-abdominal hernia
Don't confuse with
incisional hernia
ventral hernia