Cardiac Conduction: Bundle Branch Block

Description:,The ability to identify a bundle branch block pattern on the ECG, and to assess its clinical relevance, is a key skill in general medicine. In this course, we will teach you how to distinguish between a complete right bundle branch block and a complete left bundle branch block on the ECG. We will show you the abnormal events in the heart which are thought to produce the predictable ECG changes associated with both of these entities. We teach you how to identify right- and left-incomplete bundle branch blocks on the ECG. You will also learn how to identify ECG patterns believed to reflect damage to multiple components of the cardiac conducting system; bifascicular and trifascicular block. We will teach you how to identify the likely site of origin, within the ventricles, of a premature ventricular contraction.,Course Content:,• Introduction,• The Transverse Schematic,• Complete Right Bundle Branch Block,• Complete Left Bundle Branch Block,• The Diagnosis of Bundle Branch Block,• Incomplete Bundle Branch Block,• Episodic Aberrancy,• Combined Conduction Abnormalities,• Site of Origin of PVCs,• Quiz,• Essential Reading,Objectives Topics:,Upon successful completion of this activity, you will be able to:,• Explain the qrs morphological changes of the complete left bundle branch block and complete right bundle branch block,• Identify the anatomical site of origin of premature ventricular contractions based on analysis of qrs morphology,• Explain aberrant conduction occurring in response to changes in heart rate,• Distinguish between complete left and complete right bundle branch block on the ECG ,• Identify the incomplete left and incomplete right bundle branch blocks on the ECG,• Identify bifascicular and trifascicular block on the ECG,• Identify rate-dependent aberrancy on the ECG