Atrial premature contractions (APCs), however, usually progress to A-fib. (iwfoundation.org)
Dr. Gina Pasieka and Dr. Kacie Schmitt, colleagues of Dr. Tyrrell, have been conducting a study, sponsored by the IWF, using a subset of the LCS participants that were diagnosed with ventricular premature contractions (VPCs) to try and determine if this rhythm disturbance is actually an indicator of underlying heart disease such as dilated cardiomyopathy (DCM) or may be representative of an underlying life threatening arrhythmia. (iwfoundation.org)
Heart rate is faster than normal in the tracing and premature contractions of the ventricles give the tracing an abnormal rhythm. (2ndchance.info)