Clinical characteristics of myocardial infarction related with left circumflex artery occlusion
10.3969/j.issn.1008-0074.2013.05
- VernacularTitle:左回旋支动脉阻塞相关的心肌梗死的临床特征
- Author:
Zhiping ZHANG
;
Jingfei WEI
;
Xintian LIU
;
Hua YAN
;
Xi SU
- Publication Type:Journal Article
- Keywords:
Myocardial infarction;
Heart failure, congestive;
Angioplasty, transluminal, percutaneous coronary LCX infarct-related
- From:
Chinese Journal of cardiovascular Rehabilitation Medicine
2013;22(5):443-446
- CountryChina
- Language:English
-
Abstract:
Objective: To explore the clinical characteristics of ST elevation and non-ST elevation acute myocardial infarction (AMI) related with left circumflex artery (LCX) occlusion. Methods: Clinical data of 86 consecutively enrolled patients with LCX occlusion -related AMI undergoing percutaneous coronary intervention (PCI) were retrospectively analyzed. According to manifestations of electrocardiography, the patients were divided into ST elevation myocardial infarction (STEMI) group (n=32) and non STEMI (NSTEMI) group (n=54). Clinical features and prognosis were compared between two groups. Results: Compared with NSTEMI group, there were significant increase in serum level of creatinine [(80±23) μmmol/L vs. (100±30) μmmol/L], in rates of intra-aortic balloon counterpulsation （IABP）support (3.7% vs. 18.8%), usage of invasive respiratory machine (1.9% vs. 15.6%), ischemic mitral reflux (13.0% vs. 40.6%), complete atrioventricular block (0 vs. 9.4%), proportion of left coronary artery dominant type (7.4% vs. 28.1%) and left ventricular end-diastolic diameter [LVEDd,（46±4）mm vs.（48±5）mm?]; And significant decrease in percentage of triple-vessel coronary disease (72.2% vs. 46.9%) in STEMI group, P<0.05 or <0.01. There was no significant difference in mortality rate during admission (3.1% vs. 0, P>0.05) between STEMI group and NSTEMI group. Conclusions: Compared with patients with NSTEMI, patients with STEMI have poorer heart function in patients with left circumflex artery occlusion, which may be related to more left coronary dominance.
- Full text:P020131108348513273436.doc
