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Targeting the Rat's Small Bowel: Long-Term Infusion into the Superior Mesenteric Artery
Published on: April 8, 2021
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Recurrent Superior Mesenteric Artery Stent Fracture.
J Eli Robins1, Zane Young1, Roan J Glocker1
1Department of Surgery, Division of Vascular Surgery, University of Rochester Medical Center, Rochester, NY.
Annals of Vascular Surgery
|May 11, 2019
Summary
Superior mesenteric artery (SMA) stenosis can lead to mesenteric ischemia. This case highlights recurrent SMA stent fracture caused by diaphragmatic compression, emphasizing the need for careful intervention strategies.
Area of Science:
- Vascular surgery
- Interventional radiology
- Gastroenterology
Background:
- Ostial stenosis of the superior mesenteric artery (SMA) is typically benign due to collateral circulation.
- Significant atherosclerosis can cause SMA thrombosis and mesenteric ischemia, necessitating intervention.
- Management has shifted towards endovascular approaches like angioplasty and stenting.
Observation:
- A unique case of recurrent SMA stent fracture is presented.
- Imaging revealed diaphragmatic compression of the SMA during respiration as the cause.
- This mechanical stress led to stent failure.
Findings:
- Stent fracture in the SMA can occur due to external compression.
- Diaphragmatic compression during the respiratory cycle is a potential cause of SMA stent failure.
- Recurrent fractures indicate a need for reassessment of stent placement and type.
Implications:
- This finding suggests considering respiratory mechanics in SMA interventions.
- Alternative stent designs or fixation methods may be needed for patients with diaphragmatic compression.
- Further research into biomechanical factors affecting SMA stents is warranted.
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