Comparison of Conservative and Endovascular Treatment for Spontaneously Isolated Superior Mesenteric Artery Dissection

Comparison of Conservative and Endovascular Treatment for Spontaneously Isolated Superior Mesenteric Artery Dissection: A Real-world, Multicenter, Observational Study

Spontaneous isolated superior mesenteric artery dissection(SISMAD) is an increasingly diagnosed disease. However, prospective, multicenter studies that can provide evidence to support clinical decisions are very limited. This study aims to compare the therapeutic efficacy of conservative and endovascular treatment for SISMAD.

Inclusion Criteria:

1. Aged 18 and above;
2. Isolated superior mesenteric artery dissection with clear symptoms or history and confirmed by CTA
3. Signed informed consent forms, willing to receive treatments

Exclusion Criteria:

1. Symptoms are severe and patients need exploratory laparotomy;
2. Patients with aortic dissection, iliac artery dissection, or autoimmune vasculitis;
3. Patients with mental illness cannot cooperate subjectively;
4. Patients who are allergic to contrast agents, or contraindicated to conservative treatment drugs, and cannot be treated with drugs;
5. Pregnancy and breastfeeding women, or patients who have recent birth plans;
6. Patients who are participating in other clinical projects;
7. Patients are not suitable to participate in this study.