NCT04325373

Abdominal Aortic Aneurysm Surgery and Thrombosis

Study of Thrombotic Complications After Abdominal Aortic Aneurysm Surgery With or Without Infection: AAA-IT

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 40 (actual)
• Sponsor: University Hospital, Bordeaux · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: —

Summary

The aim of our study is to evaluate the incidence of post-operative thrombotic complications after abdominal aortic aneurysm surgery in the context of atherosclerosis or infectious aneurysm and its links with preoperative inflammation and hemostasis.

Detailed description

Abdominal aortic aneurysm (AAA) develops in the context of atherosclerosis or infection (aortitis or mycotic aneurysm). AAA and its surgery are associated with pro-thrombotic modifications of hemostasis, which persists in the post-operative period. Pro-thrombotic reactions occur in the intraluminal thrombus. Inflammatory cells recruitment is mediated by adhesion molecules from the activated endothelium, such as "vascular cell adhesion molecule-1" (VCAM-1), "intercellular adhesion molecule-1" (ICAM-1), P-selectin and E-selectin. In the setting of infection, neutrophil death process occurs, the NETosis, with the liberation of Neutrophil Extracellular Traps (NETs), containing DNA and histones. NETs are associated with thrombosis and various studies have already quantified NETosis biomarkers in plasma from patients with thrombotic disease, such as MPO-DNA (DNA coupled myeloperoxidase). In the clinical perioperative setting, patients with aortitis scheduled for AAA surgery shwoed exhibit thrombotic events. The hypothesize was that patients with aortitis have an inflammatory and hemostatic activation different from patients who develop AAA in atherosclerotic condition, and that inflammation is a risk factor of postoperative thrombotic events.

Conditions

• Abdominal Aortic Aneurysm

Timeline

• Start date: 2019-11-21
• Primary completion: 2021-01-27
• Completion: 2021-01-27
• First posted: 2020-03-27
• Last updated: 2022-04-12

Locations

1 site across 1 country: France