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Comparative study of two endovascular treatment strategies for isolated superior mesenteric artery dissection

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Author:
No author available
Journal Title:
Chinese Journal of Radiology
Issue:
12
DOI:
10.3760/cma.j.cn112149-20220305-00203
Key Word:
肠系膜上动脉;夹层;腔内治疗;Mesenteric artery, superior;Dissection;Endovascular treatment

Abstract: Objective:To investigate the efficacy of bare stent implantation alone and stent assisted coiling in the repair of isolated superior mesenteric artery dissection (ISMAD) false lumen.Methods:Clinical data of 50 patients with ISMAD who underwent endovascular treatment between December 2012 and March 2021 were analyzed retrospectively. Depending on the endoluminal treatment methods, they were divided into the bare stent implantation alone group (29 cases) and the stent assisted coiling group (21 cases), and the rates of complete postoperative dissection remodeling, stent restenosis, and symptom recurrence were compared between the two groups.Results:The rates of complete remodeling of the dissection in the immediate postoperative period, 3 months and 6 months in the bare stent placement alone group were 13.8% (4/29), 51.7% (15/29) and 75.9% (22/29), respectively, which were lower than that of the stent assisted coiling group 71.4% (15/21), 85.7% (18/21), and 100% (21/21), and the difference was statistically significant (χ 2=17.17, 6.27, 4.06 respectively, and P=0.001, 0.012, 0.044 respectively). While the rates of complete remodeling of the dissection were 82.8%(24/29), 100%(21/21) in the two groups at 12 months after surgery, respectively, and the difference was not statistically significant (χ 2=2.34, P=0.126). There was no significant difference in stent patency rate and symptom recurrence rate between the two groups ( P>0.05). Conclusions:The efficacy of bare stent implantation alone and stent assisted coiling in the treatment of ISMAD is definite. Although the rate of complete remodeling of the dissection with bare stent placement alone is low in the short term, the rate of complete remodeling of the dissection with bare stent implantation alone gradually increases with the extension of time, which is worthy of clinical application and promotion.

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