Populations with the Leriche syndrome

Area of Science:

• Vascular Surgery
• Atherosclerosis Research
• Patient Stratification

Background:

• Leriche syndrome, characterized by aortic bifurcation occlusion, presents a surgical challenge.
• Distal arterial health significantly impacts outcomes for patients undergoing aortic bypass procedures.

Purpose of the Study:

• To differentiate patient populations within Leriche syndrome based on distal arterial status.
• To evaluate the efficacy of aortic bypass in patients with and without distal arterial disease.

Main Methods:

• Retrospective analysis of 325 patients undergoing bypass for distal aortic atherosclerosis.
• Arteriographic assessment of distal arteries to categorize patients into two groups: normal or diseased.
• Comparison of clinical outcomes, including symptom relief and graft patency, between the two groups.

Main Results:

• Patients with normal distal arteries experienced successful symptom relief and restored flow post-bypass.
• Patients with multilevel stenosis/occlusion below the inguinal ligament had a higher incidence of acute graft failure (4/11), including two deaths.
• Only 2 of 9 patients with diseased distal vessels showed symptomatic improvement.

Conclusions:

• Leriche syndrome comprises at least two distinct patient populations based on distal arterial anatomy.
• Distal arterial disease is a critical factor predicting poor outcomes after aortic bypass in Leriche syndrome patients.
• Aortic bifurcation anatomy may influence clinical presentation and treatment response.