The correct diagnosis is sinus bradycardia, AV dissociation, and accelerated junctional rhythm and occasional capture (Figure 2). The other QRS complexes occur at a regular interval and a rate of 42 ...

This ECG shows P waves that are not always associated with a QRS complex. This is called "AV dissociation" and occurs in complete heart block (a.k.a. 3rd degree heart block). In this situation, the P ...

Third-degree atrioventricular nodal block, also known as third-degree heart block or complete heart block, occurs when no action potentials conduct through the AV node. This results in the P waves ...

The diagnosis is NSR, isorhythmic dissociation, acute ST-segment elevation MI (STEMI) of the lateral wall, and poor R-wave progression across the precordium (clockwise rotation). The rhythm is regular ...

A young woman in her 20s who was 8 months into her first pregnancy presented with periodic heart palpitations at rest. The patient had been experiencing palpitations that lasted for a few minutes and ...