The diagnostic criteria of perioperative myocardial infarction in patients undergoing coronary artery bypass grafting and analysis of related factors
10.3760/cma.j.issn.1008-6706.2017.15.030
- VernacularTitle:冠状动脉旁路移植术后围术期心肌梗死的诊断及病因分析
- Author:
Ruibing LI
;
Yu GUO
;
Yizhong HUO
;
Changjiang FU
;
Yan HE
;
Lixin GUO
- Keywords:
Coronary artery bypass graft;
Cardiac troponin-I;
Coronary artery disease;
Myocardic infarction
- From:
Chinese Journal of Primary Medicine and Pharmacy
2017;24(15):2363-2366
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the related factors and diagnostic criteria of perioperative myocardial infarction (PMI) after on-pump coronary artery bypass grafting(CABG).Methods 258 CABG patients were selected.The cardiac troponin-I in immediately,6,12,24,and 48 hours after surgery were measured.95 percentile (P95) was used as the boundary,any measured value greater than P95 was identified PMI,as group I(13 cases),the rest as group II(245 cases).The age,sex,cardiopulmonary bypass time,aortic corss-clamp time,LV ejection fraction,left ventricular end diastolic diameter,grafted vessels,left anterior descending coronary artery occlusion,recent myocardial infarction (<3 months),severe complex coronary artery disease and other risk factors that may lead to PMI were analyzed.The data were analyzed using Student's test for continuous variables and the χ2 test for discontinuous variables.Results P95 value was 3.47,the cardiopulmonary bypass time(t=3.268,P<0.05),aortic corss-clamp time(t=2.047,P<0.05),severe complex coronary artery disease between the two groups had statistically significant difference (χ2=19.846,P<0.05).Conclusion cTnI>P95 (3.47) indicates that the myocardium injury is serious,cardiopulmonary bypass time,aortic corss-clamp time and severe complex coronary artery disease are associated with PMI in patients undergoing CABG.
