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| Correlation between aVR Lead T Wave and Coronary Artery Lesions in Patients with Myocardial Infarction |
| LI Hai-sha |
| Depatrment of Heart Function Examination Room,The First Hospital of Changsha City,Changsha 410005,China |
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Abstract 【Objective】To clarify the correlation between the T wave in lead aVR and the severity of coronary artery lesions in patient with ASTEMI. 【Methods】Clinical data of 218 patients with acute ST segment elevation myocardial infarction (ASTEMI)were divided into positive group (n=90) and non positive group (n=128) according to the aVR lead T wave direction before the coronary angiography.Comparison between two groups of infarction related artery vessel disease, Gensini score and other indicators were conducted. According to the recovery of T wave after percutaneous coronary intervention, the patients of aVR lead T wave positive group were divided into the recovery group and the non-recovery group.The effect of percutaneous coronary intervention on the recovery of T wave in aVR lead was observed.【Results】 The incident of IRA descending of the positive T wave group was higher than that of T non positive group, the proportion of multivessel lesions was higher than that of the non T positive group , the collateral circulation proportion was lower than that of the non T positive group,there was significant difference between the two groups (P<0.05); the Slight proportion of Gensini integral of the positive T wave group was less than that of non-positive T wave group,the Severe proportion was higher than that of non-positive T wave group, there was significant difference between the two groups (P<0.05); aVR lead T wave positive [OR=1.67,95% CI (1.029~3.077),P=0.049<0.05], aged [OR=1.023,95% CI (1.009~1.042),P=0.045<0.05] were all risk factors for coronary artery disease;The ratio of anterior descending branch of coronary artery (IRA) of single coronary artery lesion in the T wave recovery group was significantly higher than that of the T wave group; the proportion of patients with severe preoperative Gensini score of PCI was significantly lower than that of T wave group, the difference was statistically significant (P<0.05). 【Conclusion】The direction of T wave in aVR lead is correlated with the severity of coronary artery lesions in patients with acute ST segment elevation myocardial infarction.
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2017, Vol. 34 
