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  • Title: Value of endovascular stent placement for symptomatic spontaneous isolated superior mesenteric artery dissection.
    Author: Pang P, Jiang Z, Huang M, Zhou B, Zhu K, Shan H.
    Journal: Eur J Radiol; 2013 Mar; 82(3):490-6. PubMed ID: 23092539.
    Abstract:
    OBJECTIVE: To evaluate the feasibility and efficacy of endovascular stent placement for the treatment of symptomatic spontaneous isolated superior mesenteric artery dissection. MATERIALS AND METHODS: This retrospective study was undertaken in 12 consecutive patients who suffered from symptomatic spontaneous isolated superior mesenteric artery dissection. Seven patients with severe clinical symptoms underwent endovascular stent placement as a primary treatment and the other 5 patients received conservative treatment. The technical results, complications and clinical outcomes were analyzed. Follow-up was performed with computed tomographic angiography. RESULTS: Primary endovascular stent placement was successfully performed in 7 patients with severe clinical symptoms. Successful conservative treatment was achieved in 3 patients. Endovascular stent placement was additionally performed in 2 patients with unsuccessful conservative treatment. A stent was misplaced in the false lumen in one of those two patients due to a severely stenotic true lumen. The fasting time and length of stay were significantly shorter in patients with successful endovascular therapy (median: 3 days and 5.5 days) than in those conducted conservatively (median: 9 days and 14 days) (p<0.05). During the follow-up period (median, 21 months; range, 10-36 months), 1 patient with endovascular stent placement had recurrent abdominal pain because of the wall adherent thrombus in the proximal segment of the superior mesenteric artery during the first follow-up month. No thrombosis or stenosis was found in the lumina of the stents. CONCLUSION: Endovascular stent placement is a safe and feasible therapeutic approach for symptomatic spontaneous isolated superior mesenteric artery dissection with immediate success and satisfactory outcomes.
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