An "Osborne wave" characterized by a notch in the downward portion of the R wave in the QRS complex. Low voltage. Bradycardia: This can be sinus bradycardia, junctional bradycardia, atrial ...
Chapman’s sign is used to diagnose an acute myocardial infarction in the setting of a left bundle branch block and consists of a notch in the upslope of the R wave ... This has a low sensitivity ...