Outcomes after endarterectomy for chronic mesenteric ischemia

Area of Science:

• Vascular Surgery
• Gastroenterology
• Surgical Outcomes

Background:

• Chronic mesenteric ischemia (CMI) is a condition caused by reduced blood flow to the intestines.
• Open surgical revascularization is a treatment option for CMI.
• Identifying optimal surgical factors is crucial for improving patient outcomes.

Purpose of the Study:

• To identify factors influencing outcomes in patients undergoing open revascularization for CMI.
• To compare the effectiveness of different revascularization techniques.

Main Methods:

• Retrospective review of 80 patients who underwent open surgery for CMI between 1987 and 2006.
• Exclusion of patients with acute mesenteric ischemia or median arcuate ligament syndrome.
• Analysis of mortality, recurrent stenosis, and symptomatic recurrence using logistic regression and univariate/multivariate analysis.

Main Results:

• Endarterectomy was associated with significantly better freedom from recurrent symptoms (5.2% vs. 27.6% for other methods; HR 0.20; P = .02).
• Hospital mortality was 3.8%, associated with older age and renal insufficiency.
• One- and 5-year survival rates were 92.2% and 64.5%, respectively.
• One- and 5-year symptom-free survival rates were 89.7% and 82.1%.

Conclusions:

• Endarterectomy provides the most durable long-term symptom relief for open surgical candidates with CMI.
• Patient age and renal function are significant factors affecting mortality.
• Multivessel disease was common, with 50% of patients requiring multivessel reconstruction.