Clinical Study of Patients Treated With PuraBond Haemostatic Agent During Abdominal Aorta Open Repair

Inclusion Criteria: * Patients with ≥ 18 years of age, presenting with an abdominal aortic aneurysm (pararenal, juxtarenal, infrarenal, aorto-iliac mono/bilateral) * Use of the Purabond hemostatic agent in patients who, in the opinion of the Physician, don't have a satisfactory surgical haemostasis * Patients ≥ 18 years of age with steno-occlusive abdominal aortic or iliac disease * Patients that will treated by open repair , encompassing elective, urgent and emergency presentation, hospitalized and enrolled in Vascular Surgery Unit, San Raffaele Hospital (Milan, Italy) * Patients able to sign specific informed consent for the study Exclusion Criteria: * Patients whom exhibited preoperative derangements in haematological and coagulation profiles, and baseline derangements in liver function * Patients with abdominal aortic and/or iliac arteries disease candidate for endovascular treatment * Pregnant, breastfeeding, or planning on becoming pregnant within 24 months * Systemic infection (for example: sepsis) * Impossibility or refusal to give informed consent