A type of pre-excitationDepolarization of the ventricle(s) is begun via an accessory pathway (other than the AV junction) resulting in an early initiation of a QRS and possibly a Delta wave; meanwhile, the junction and the His-Purkinje network is responsible for depolarizing the... syndrome similar to Woolf-Parkinson-WhitePre-excitation syndrome characterized by the early depolarization of the ventricle(s) via an accessory pathway (other than the AV junction) resulting in an early initiation of a QRS and possibly a Delta wave; due to the presence of the accessory pathway,... with the accessory pathwayAlternative connecting pathway between the atria and the ventricles (beside the bundle of His); resulting syndrome is called Woolf-Parkinson-White syndrome. 1. Six Second ECG Guidebook (2012), T Barill,p. 189 connecting the atriaRight and left atria (1/3 volume and muscle mass of the ventricles) pump blood to the ventricles. Chambers and Layers of the Heart 1. Six Second ECG Guidebook (2012), T Barill, p. 190 to the distal portion of the bundle of HisPart of the AV junction, the bundle of His conducts the impulse through the fibrous plate that separates the atria and the ventricle; the bundle of His is also a pacemaker, firing at 40-60/minute. The bundle of His serves as..., thus bypassing much of the junctionConnects the atria to the ventricle and slows the impulse conduction speed sufficiently to allow for atrial kick; the junction consists of the AV node and the bundle of His; the junction is a supraventricular structure. 1. Six Second ECG...; note that a Delta waveA slurring of the upstroke of the QRS produced by early depolarization (pre-excitation) of a ventricle via an accessory pathway (see Woolf-Parkinson-White Syndrome). Woolf-Parkinson-White Syndrome (WPW): Pre-excitation syndrome characterized by the early depolarization of the ventricle(s) via an accessory pathway... is not present; characteristic signs include a shortened PR intervalThe time and interval measured from the beginning of the P wave to the beginning of the QRS; should be called the PQ interval; normal PR interval is 0.12-0.20 seconds. The PR interval is measured from the start of the... and a normal QRS complexThe electrical representation of ventricular depolarization; the atrial repolarization is also a part of the QRS. ECG interpretation relies heavily on the QRS complex. The QRS complex represents the depolarization of the ventricles. The repolarization of the atria is also....
1. Six Second ECG GuidebookA Practice Guide to Basic and 12 Lead ECG Interpretation, written by Tracy Barill, 2012 Introduction The ability to correctly interpret an electrocardiogram (ECG), be it a simple six second strip or a 12 lead ECG, is a vital skill... (2012), T Barill, p. 199