Peripheral leukocytes activation in aortic aneurysmal disease.

Area of Science:

• Immunology
• Vascular Biology
• Pathogenesis of Aneurysmal Disease

Background:

• Aneurysmal disease pathogenesis involves chronic inflammation.
• Inflammatory processes are implicated in aneurysm initiation, growth, and rupture.

Purpose of the Study:

• To investigate the pathogenic role of inflammatory cells in aneurysmal disease outcomes.
• To assess the activation state of peripheral lymphocytes and neutrophils in patients with aneurysms.

Main Methods:

• Sequential follow-up of patients with aneurysmal disease.
• Analysis of peripheral blood to determine lymphocyte and neutrophil activation states.

Main Results:

• Circulating activated lymphocytes are associated with aneurysmal disease.
• Repeated peaks of neutrophil activation correlate with larger aneurysms, mural thrombosis, and aneurysm extension or rupture.

Conclusions:

• Peripheral lymphocyte and neutrophil activation are significant indicators in aneurysmal disease.
• Immune cell activation patterns may predict aneurysm progression and rupture risk.