This ECG shows sinus bradycardia at 55 beats per minute with a prolonged PR interval, about 0.24 sec, consistent with first-degree atrioventricular block. The QRS duration is top normal at 0.12 sec ...

Atrial tachycardia occurs when a focus in the atrium outside the AV node fires rapidly causing increased ventricular heart rates. When conducting in a 2:1 ratio like on this ECG, digoxin toxicity ...

The Galaxy Watch 8 Classic has dual-band GNSS, and it's also equipped with Samsung’s BioActive Sensor. The latter has a ...