Related Experiment Video
Updated: Jul 27, 2026

Targeting the Rat's Small Bowel: Long-Term Infusion into the Superior Mesenteric Artery
Published on: April 8, 2021
[Superior mesenteric artery syndrome]
1Département d'anesthésie-réanimation chirurgicale, hôpital Raymond-Poincaré, Garches, France.
Superior mesenteric artery syndrome (SMAS) is a rare surgical complication. Early diagnosis and conservative treatment, including nutritional support, are crucial for managing this duodenal obstruction, with surgery reserved for treatment failures.
Area of Science:
- Medicine
- Surgery
- Gastroenterology
Background:
- Superior mesenteric artery syndrome (SMAS) is a rare but serious complication following spinal surgery.
- It involves the compression of the third duodenal portion between the superior mesenteric artery and the aorta/vertebral column.
- Weight loss, trauma, and body casting are contributing factors.
Observation:
- This report details four cases of SMAS occurring after spine surgery for conditions like quadriplegia, paraplegia, and scoliosis.
- Delayed diagnosis of SMAS can lead to fatal outcomes.
- Diagnostic tools include CT scans with contrast and upper gastrointestinal X-ray studies.
Findings:
- Upper gastrointestinal X-ray studies facilitate the passage of a feeding tube past the obstruction.
- Conservative management involves correcting dehydration and electrolyte imbalances.
- Nasojejunal feeding is a key component of conservative treatment.
Implications:
- Prompt diagnosis and management of SMAS are vital to prevent mortality.
- Conservative treatment, including nutritional support, is the primary approach.
- Surgical intervention is reserved for cases unresponsive to conservative measures.
Related Concept Videos
Abdominal Aorta
The celiac trunk, a singular artery, divides into the left gastric artery, which...
Blood Supply to the Digestive System
Blood Supply to the Digestive System: The splanchnic circulation involves three main arteries: the celiac artery (also known as the celiac trunk) and the superior and inferior mesenteric...
Acute Coronary Syndrome I: Introduction
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Esophageal Achalasia

