Myocardial injury in major aortic surgery

Autor: H. M. Hafez, CS Berwanger, A. McColl, Gerard Stansby, John H.N. Wolfe, A. O. Mansfield, William Richmond
Rok vydání: 2000
Předmět:
Zdroj: Journal of Vascular Surgery. 31(4):742-750
ISSN: 0741-5214
DOI: 10.1067/mva.2000.102325
Popis: Purpose: The purpose of this study was to examine the effects of major aortic surgery and its associated oxidative stress and injury on the myocardium. Methods: Plasma from 27 patients who underwent thoracoabdominal aortic aneurysm (TAAA) repair and 17 patients who underwent infrarenal aortic aneurysm (AAA) repair was collected at incision, aortic crossclamping, and reperfusion and 1, 8, and 24 hours thereafter. Samples were assayed for the myocardial specific protein troponin-T, total antioxidant status, and lipid hydroperoxides. Results: Ten patients experienced cardiac dysfunction in the first 24 hours after surgery (eight patients in the TAAA group and two patients in the AAA group). Immediately after reperfusion, total antioxidant status levels dropped in all patients with TAAA and with AAA; this was more marked in patients with TAAA, leading to a significant difference between the two groups at this time point and for up to 1 hour thereafter (P
Databáze: OpenAIRE