Health Education Assets Library (HEAL)
 
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TitleDescriptionSubjectCollection
226 Ventricular asystole - marquetteVentricular asystole - marquetteKnowledge Weavers ECG
227 Ventricular bigeminy - marquetteVentricular bigeminy - marquetteKnowledge Weavers ECG
228 Ventricular escape beat - marquetteVentricular escape beat - marquetteKnowledge Weavers ECG
229 Ventricular fibrillation - marquetteVentricular fibrillation - marquetteKnowledge Weavers ECG
230 Ventricular fusion beat - marquetteVentricular fusion beat - marquetteKnowledge Weavers ECG
231 Ventricular fusion beatsFusion beats occur when two or more activation fronts contribute to the electrical event. These may occur in the atria or in the ventricles. In this example the ventricular fusions are the result of simultaneous activation of the ventricles from two foci, the sinus node and a ventricular ectopic...Knowledge Weavers ECG
232 Ventricular paced rhythm with retrograde wenckebachRetrograde atrial captures from a ventricular paced rhythm are occurring with increasing R-P intervals; i.e., retrograde Wenckebach. The ladder diagram indicates that after the blocked retrograde event, a single sinus P wave is seen dissociated from the ventricular rhythm.Wenckebach AV BlockKnowledge Weavers ECG
233 Ventricular pacemaker rhythmNote the small pacemaker spikes before the QRS complexes in many of the leads. In addition, the QRS complex in V1 exhibits ventricular ectopic morphology; i.e., there is a slur or notch at the beginning of the S wave, and>60ms delay from onset to QRS to nadir of S wave. This rules against a suprav...Knowledge Weavers ECG
234 Ventricular Pacemaker Rhythm: V1-3Note the small pacemaker spikes before the QRS complexes. In addition, the QRS complex in V1-3 exhibits ventricular ectopic morphology; i.e., there is a slur or notch at the beginning of the S wave, and >60ms delay from onset to QRS to nadir of S wave. This rules against a supraventricular rhythm wi...Knowledge Weavers ECG
235 Ventricular pacemaker: demand mode functioningVentricular pacemaker: demand mode functioningKnowledge Weavers ECG
236 Ventricular pacing in atrial fibrillation - marquetteVentricular pacing in atrial fibrillation - marquetteKnowledge Weavers ECG
237 Ventricular parasystoleIn ventricular parasystole, non-fixed coupled PVC's occur at a common inter-ectopic interval. Fusion beats, indicated by arrows, are often seen. Fusions occur when the sinus impulse entering the ventricles find the ventricles already partially depolarized by the parasystolic focus.Knowledge Weavers ECG
238 Ventricular tachycardia - marquetteVentricular tachycardia - marquetteKnowledge Weavers ECG
239 Ventricular tachycardia with AV dissociation, captures, and fusionsApproximately 50 percent of ventricular tachycardias are associated with AV dissociation. In these cases atrial impulses can enter the ventricles and either fuse with a ventricular ectopic beat or completely capture the ventricles. This ladder diagram illustrates these events.Knowledge Weavers ECG
240 Ventricular tachycardia with retrograde wenckebachApproximately 50 percent of ventricular tachycardias are associated with AV dissociation. The other 50 percent have retrograde atrial capture. This example shows ventricular tachycardia with retrograde Wenckebach. The retrograde P waves are hard to find, but the arrows are of some help.Wenckebach AV BlockKnowledge Weavers ECG
241 Voltage criteria for LVHVoltage criteria for LVHKnowledge Weavers ECG
242 Wandering atrial pacemakerWandering atrial pacemaker is a benign rhythm change where the pacemaker site shifts from the sinus node into the atrial tissues. P-wave morphology varies with the pacemaker site.Knowledge Weavers ECG
243 Wandering baseline artifact - marquetteWandering baseline artifact - marquetteKnowledge Weavers ECG
244 What are those funny looking beats????The differential diagnosis of funny-looking-beats, or FLB's, primarily considers beats of supraventricular origin with aberrant conduction and ventricular ectopic beats. In this example the two FLB's have an easily seen ectopic P wave before them; therefore these are PAC's with RBBB aberration.Knowledge Weavers ECG
245 WPW diagramThe short PR interval is due to a bypass track, also known as the Kent pathway. By bypassing the AV node the PR shortens. The delta wave represents early activation of the ventricles from the bypass tract. The fusion QRS is the result of two activation sequences, one from the bypass tract and one...Knowledge Weavers ECG
246 WPW Type Pre-excitation: Precordial LeadsWPW Type Pre-excitation: Precordial LeadsKnowledge Weavers ECG
247 WPW type preexcitationNote the short PR and the subtle delta wave at the beginning of the QRS complexes. The delta wave represents early activation of the ventricles in the region where the AV bypass tract inserts. The rest of the QRS is derived from the normal activation sequence using the bundle branches.Knowledge Weavers ECG
248 WPW type preexcitation - marquetteWPW type preexcitation - marquetteKnowledge Weavers ECG
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