# Seat Belt Injury and Efferent Loop Laceration Following a Single Anastomosis Duodenal Switch: A Case Report

## TL;DR

A patient with a modified bariatric surgery suffered a serious abdominal injury from a car accident and required urgent surgery.

## Contribution

This case highlights the rare but critical complication of efferent loop laceration after SADI-S following blunt trauma.

## Key findings

- The patient sustained a seat belt injury causing efferent loop laceration after a SADI-S procedure.
- Prompt surgical intervention with resection and anastomosis was necessary for treatment.
- Early recognition and intraoperative decision-making were crucial for successful management.

## Abstract

Blunt abdominal trauma patients who have had prior bariatric procedures may present a diagnostic and therapeutic challenge. The single anastomosis duodenal-ileal bypass with sleeve (SADI-S) is a modified duodenal switch procedure that is relatively uncommon. This case report describes a patient who previously underwent a SADI-S for the management of obesity and subsequently sustained a seat belt injury in a motor vehicle collision resulting in a laceration of the efferent loop. The patient presented with symptoms of acute abdominal pain and was diagnosed through imaging studies. Prompt surgical intervention was performed with resection and primary anastomosis of the damaged section of the jejunum, and repair of a large mesenteric laceration. We discuss the importance of early recognition and intraoperative decision-making in the case of this patient concerning her SADI-S.