Comparing treatments for isolated superior mesenteric artery dissection

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

Observational Xiangya Hospital of Central South University · NCT05342233

This study is testing whether treating isolated superior mesenteric artery dissection with a watch-and-wait approach or a minimally invasive procedure works better for patients.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorXiangya Hospital of Central South University Academic / other
Locations1 site (Changsha, Hunan)
Trial IDNCT05342233 on ClinicalTrials.gov

What this trial studies

This observational study aims to compare the effectiveness of conservative versus endovascular treatment options for patients diagnosed with spontaneous isolated superior mesenteric artery dissection (SISMAD). It seeks to gather evidence from multiple centers to inform clinical decisions regarding the best therapeutic approach for this increasingly recognized condition. Participants will be monitored to assess treatment outcomes and efficacy based on their individual responses to the interventions. The study will include patients who meet specific eligibility criteria and provide informed consent.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older with a confirmed diagnosis of isolated superior mesenteric artery dissection and clear symptoms.

Not a fit: Patients with severe symptoms requiring exploratory laparotomy or those with other significant vascular conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help determine the most effective treatment strategy for patients with SISMAD, potentially improving patient outcomes.

How similar studies have performed: While there is limited evidence from prospective multicenter studies on this specific condition, the approach of comparing treatment modalities has shown promise in other vascular conditions.

Eligibility criteria

Show full inclusion / exclusion criteria
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.

Where this trial is running

Changsha, Hunan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Spontaneous Isolated Superior Mesenteric Artery Dissection
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.