EXPERIMENTAL STUDY OF RELATION BETWEEN SPECTRAL ANALYSIS OF HIGH FREQUENCY ELECTROCARDIOGRAM AND MYOCARDIAL INFARCTION SIZE

摘要

Thirty rabbits were divided at random into three groups (ten for each).GroupⅠ: The left ventricular branch (LVB) of the coronary artery was ligated at the lowersection near the apex.Group Ⅱ: LVB was ligated at the junction of the middle 1/3and the lower 1/3.Group Ⅲ: LVB was ligated at the junction of the upper 1/3 andthe middle 1/3.The infarctional sizes were less than or equal to 25%,26%～40%,and more than 40% respectively.All animals were killed six hours after ligation,