Electrocardiographic criteria for predicting the culprit artery in inferior wall acute myocardial infarction

Am J Cardiol. 1999 Jul 1;84(1):87-9, A8. doi: 10.1016/s0002-9149(99)00197-6.

Abstract

Two patterns of the QRS complex in the lateral lead aVL on the admission electrocardiograms of patients with inferior wall acute myocardial infarction (AMI) were correlated with the culprit artery. S/R wave ratio < or =1/3 with ST depression < or =1 mm was found to be a sensitive and specific marker for left circumflex artery AMI, whereas S/R-wave ratio >1/3 with ST-segment depression >1 mm was suggestive of right coronary artery AMI.

MeSH terms

  • Cineangiography
  • Coronary Disease / diagnosis*
  • Electrocardiography* / statistics & numerical data
  • Female
  • Humans
  • Male
  • Middle Aged
  • Myocardial Infarction / diagnosis*
  • Predictive Value of Tests
  • Sensitivity and Specificity