<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>An abnormal R wave that is part of the QRS complex in an electrocardiographic recording, which occurs due to a disturbance in the depolarization mechanism of the ventricular myocardium. (NCI)</n0:def-definition><n0:def-source>CDISC</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>An electrocardiographic finding of an atypical R wave within the QRS complex; it is due to a disturbance in the depolarization mechanism of the ventricular myocardium.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>