Related Experiment Video
Updated: Feb 5, 2026

Targeting the Rat's Small Bowel: Long-Term Infusion into the Superior Mesenteric Artery
Published on: April 8, 2021
Intermittent superior mesenteric artery syndrome in a patient with multiple sclerosis
Alistair Young1, Ned Kinnear1,2, Derek Hennessey3
1Department of Surgery, Port Augusta Hospital, 71 Hospital Rd, Port Augusta, SA 5700 Australia.
Abstract:
A 42-year-old man with multiple sclerosis presented with recurrent vomiting, in the context of recent weight loss. Computed tomography scan of the abdomen and pelvis revealed duodenal compression by the superior mesenteric artery (SMA), consistent with intermittent SMA syndrome. Subsequent gastroscopy and barium meal follow-through showed resolution of the obstruction. SMA syndrome is rare and has not previously been reported in a patient with multiple sclerosis. We hypothesize that loss of the aortomesenteric fat pad on the background of contorted body habitus from multiple sclerosis placed the patient at risk for intermittent positional compression of his duodenum.
Related Concept Videos
Drug Accumulation During Multiple Dosing: Intermittent IV Infusions
Multiple Allele Traits
Cranial Bones: Superior and Posterior View
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Multiple Regression
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Nephrotic Syndrome I : Introduction
Acute Coronary Syndrome I: Introduction

