Efficacy of the Conservative Treatment for Isolated Dissection of the Superior Mesenteric Artery

Abstract

We report herein a retrospective study which included 21 consecutive patients who were diagnosed with isolated superior mesenteric artery (SMA) dissection at our hospital between 2006 and 2014. False lumen was thrombosed in 15 patients (71%). One patient underwent endovascular treatment because of persistent abdominal angina at 4 months after the onset. The other patients including three, whose true lumen of SMA were completely occluded by thrombosed false lumen, were successfully treated with conservative therapy. If occlusion of true lumen of the SMA is located closely to the ostium and is only short segment, collateral flow to distal SMA and early spontaneous recanalization of occluded segment will attribute to a successful conservative treatment.