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This study aims to evaluate the prognosis in patients with spontaneous isolated dissection of the superior mesenteric artery (SIDSMA) who have been treated with stents.
Condition or disease
Dissection of the Superior Mesenteric Artery
This study is a prospective, observational study. Patients who have been diagnosed as spontaneous isolated dissection of the superior mesenteric artery (SIDSMA) and treated with stents are enrolled in the study. We will evaluate the patency of stent, remodeling of the dissection and the relief of the symptoms in the next 2 years after patients have received stents.
Patency of stents deployed in the superior mesenteric artery [ Time Frame: 24 months post-procedure ]
The patency of stents deployed in the superior mesenteric artery shall be evaluated via computed tomographic angiography
Remodeling of the superior mesenteric artery [ Time Frame: 24 months post-procedure ]
Complete remodeling was defined as the absence of residual arterial dissection and stenosis via follow-up computed tomographic angiography. Incomplete remodeling was defined as improved luminal patency of the superior mesenteric artery but worse than complete remodeling.
Secondary Outcome Measures :
Relief of symptoms [ Time Frame: 24 months post-procedure ]
Most of patients with SIDSMA are symptomatic. The symptoms mainly include abdominal pain, hematochezia, nausea and vomiting.After the procedure, the time delay between the stent implantation and disappearance of these symptoms are documented.
Recurrence [ Time Frame: 24 months post-procedure ]
New dissection or aneurysm formation in the superior mesenteric artery
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Layout table for eligibility information
Ages Eligible for Study:
18 Years and older (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Patients who have been diagnosed as spontaneous isolated dissection of the superior mesenteric artery (SIDSMA) and treated with stents are potential candidates for the study. All participants must meet all inclusion criteria and none of the exclusion criteria.
Male or non-pregnant female over 18 years of age
Diagnosed as spontaneous isolated dissection of the superior mesenteric artery
Patients have been successfully treated with stents
Patients are willing to participate in this study
Life expectancy of < 5 years;
Other surgeries or endovascular treatments have been taken concurrently.