Two independent rhythms on an electrocardiographic recording noted in: "piggy back" transplant, maternal and fetal ECGs, re-recording on same Holter tape.
Differentiation of late diastolic ventricular ectopic from intermittent pre-excitation: PJ interval constant in WPW syndrome, can vary in late diastolic VPC
ST Elevation in Prinzmetal’s Angina ST elevation in Prinzmetal’s angina occurs during pain and disappears when pain subsides. Prinzmetal’s angina is due to coronary vasospasm producing transmural or
Post ectopic mitral regurgitation Long pause following an ectopic beat can produce a diastolic mitral regurgitation during left ventricular angiography. Abnormal sequence of activation can cause systolic mitral