BACKGROUND: This study of reperfusion injury after coronary artery bypass grafting focuses on its contribution to fatal outcome, on its connection with myocardial infarction (MI) and on risk factors. METHODS: A consecutive series of 190 patients (mean age 61.7+/-8.9 years) dying within 30 days following coronary artery bypass grafting was autopsied with concomitant postmortem angiography during 1980 to 1993. RESULTS: Reperfusion injury was revealed in 49 (25.8%) patients, with concomitant MI in almost all (46 of 49) (p < 0.01). Reperfusion injury occurred in association with preoperative New York Heart Association (NYHA) III classification (p < 0.05), coronary endarterectomy (p < 0.01), long aortic clamping time (p < 0.01), and short postoperative survival (p < 0.05). CONCLUSIONS: Reperfusion injury was observed in one fourth of the deaths in association with MI. It occurred more often in patients with preoperative NYHA III symptoms and in those in whom endarterectomy was carried out and the anoxic time of the myocardium was longer. The shorter postoperative survival time indicates the lethal nature of this complication.
BACKGROUND: This study of reperfusion injury after coronary artery bypass grafting focuses on its contribution to fatal outcome, on its connection with myocardial infarction (MI) and on risk factors. METHODS: A consecutive series of 190 patients (mean age 61.7+/-8.9 years) dying within 30 days following coronary artery bypass grafting was autopsied with concomitant postmortem angiography during 1980 to 1993. RESULTS:Reperfusion injury was revealed in 49 (25.8%) patients, with concomitant MI in almost all (46 of 49) (p < 0.01). Reperfusion injury occurred in association with preoperative New York Heart Association (NYHA) III classification (p < 0.05), coronary endarterectomy (p < 0.01), long aortic clamping time (p < 0.01), and short postoperative survival (p < 0.05). CONCLUSIONS:Reperfusion injury was observed in one fourth of the deaths in association with MI. It occurred more often in patients with preoperative NYHA III symptoms and in those in whom endarterectomy was carried out and the anoxic time of the myocardium was longer. The shorter postoperative survival time indicates the lethal nature of this complication.
Authors: Michael Walsh; Richard Whitlock; Amit X Garg; Jean-François Légaré; Andra E Duncan; Robert Zimmerman; Scott Miller; Stephen Fremes; Teresa Kieser; Ganesan Karthikeyan; Matthew Chan; Anthony Ho; Vivian Nasr; Jessica Vincent; Imtiaz Ali; Ronit Lavi; Daniel I Sessler; Robert Kramer; Jeff Gardner; Summer Syed; Tomas VanHelder; Gordon Guyatt; Purnima Rao-Melacini; Lehana Thabane; P J Devereaux Journal: CMAJ Date: 2015-12-14 Impact factor: 8.262
Authors: Robert Wagner; Pavel Piler; Zufar Gabbasov; Junko Maruyama; Kazuo Maruyama; Jiri Nicovsky; Peter Kruzliak Journal: Biomed Res Int Date: 2014-08-19 Impact factor: 3.411