Abstract
Isolated spontaneous superior mesenteric artery (SMA) dissection is a rare and sporadically reported condition. Therapeutic options include medical treatment, surgery, and endovascular treatment. However, the optimal treatment strategy has still not been established. We herein present two patients with acute abdomen due to isolated spontaneous SMA dissection, in whom symptoms remained despite initial anticoagulation therapy. Percutaneous endovascular treatment with stenting of the dissected main trunk to achieve complete coverage of the entry site and balloon angioplasty for the distally involved side branches were performed successfully and resulted in complete resolution of the symptoms. According to our experience and previous case reports, early (within 1 week) elective percutaneous endovascular intervention with background anticoagulation therapy is a feasible and effective treatment strategy for symptomatic patients with isolated SMA dissection.
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