The strip below shows a junctional rhythm with retrograde P waves seen just before the QRS complex. The second rhythm strip shows retrograde P waves just after the QRS complex.

ECG Challenge: What's Causing This Long Pause? An older woman visits the hospital after fainting, and telemetry shows long pauses in her heart's rhythms. What does the ECG show?

All other characteristics of VT apply; this includes the presence of atrioventricular dissociation, as seen in the ECG and strip below, and the Brugada Criteria. An idioventricular rhythm is ...

The human heart beats 80,000-120,000 times a day. Long-term ECGs record every heartbeat, and the recording is then ...

Figure 2: An ECG obtained from a beagle dog 21 days later, showing six rhythm strips simultaneously (leads I, II, III, aVR, aVL and aVF). VPCs are the most frequent type of abnormal rhythm in dogs ...