Decreases in Electrocardiographic R-Wave Amplitude and QT Interval Predict Myocardial Ischemic Infarction in Rhesus Monkeys with Left Anterior Descending Artery Ligation
Figure 3
R wave amplitude progressively increases from lead V1 to V4 monkeys before LAD ligation surgery (Control). This tendency disappeared; poor R wave progression was detected at 2 hrs (2 H) or 8 wks (8 W) after LAD ligation.