Kerr F, Haywood L J
Br Heart J. 1976 Oct;38(10):1098-100. doi: 10.1136/hrt.38.10.1098.
The electrocardiogram was recorded during spontaneous rupture of the interventricular septum in a patient after myocardial infarction. The electrocardiographic abnormalities included an increase in the sinus rate, elevation of the ST segment, decrease in Q wave size, and increase in the height and width of the P wave.