title: Perioperative changes in coagulative and fibrinolytic function during surgical treatment of abdominal aortic aneurysm and arteriosclerosis obliterans.
abstract: To determine the factors which influence perioperative coagulative and fibrinolytic function, we studied 41 patients who underwent surgical repair of unruptured abdominal aortic aneurysm (AAA) and 30 patients who underwent arterial reconstruction for arteriosclerosis obliterans (ASO). In patients with AAA, the levels of fibrin/fibrinogen degradation products (FDP) (11.4 +/- 20.1 micrograms/ml), thrombin-antithrombin III complex (TAT) (22.0 +/- 21.8 micrograms/l), plasmin-alpha 2 plasmin inhibitor complex (PIC) (2.6 +/- 2.9 micrograms/ml) and d-dimer of cross-linked fibrin degradation products (D-D) (8.4 +/- 10.8 micrograms/ml) were elevated, particularly when the AAAs had a large mural thrombus surface area or were accompanied by aneurysm of the iliac or femoral artery. In arterial aneurysms, blood coagulability and secondary fibrinolytic activity were believed to be enhanced. In patients with ASO, the level of TAT (17.2 +/- 24.8 micrograms/l) was so elevated that they were considered to show chronic hypercoagulability. Among the ASO patients with aorto-iliac lesions, those with concomitant graft occlusion or anastomotic aneurysm had significantly elevated levels of TAT. Proximal arterial occlusion or accompanying aneurysm in the ASO patients was associated with increased levels of PIC and D-D. Postoperative fluctuations in conventional hematological variables did not differ significantly among the surgical procedures. Conventional markers showed a transient decrease due to consumption during surgery, and a subsequent recovery or an actual increase within several days after surgery.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: First Department of Surgery, Faculty of Medicine, University of Tokyo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Aramoto
authors.forename: H
authors.initials: H
authors.lastname: Shigematsu
authors.forename: T
authors.initials: T
authors.lastname: Muto
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000097:blood / Q000601:surgery*; D001162:Arteriosclerosis Obliterans / Q000097:blood / Q000601:surgery*; D001780:Blood Coagulation Tests; D001807:Blood Vessel Prosthesis; D005260:Female; D005342:Fibrinolysis / Q000502:physiology*; D006083:Graft Occlusion, Vascular / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000097:blood*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013927:Thrombosis / Q000097:blood / Q000601:surgery*