Sinus bradycardia, or a slow heart rate, can be a sign of cardiovascular health in healthy young adults and endurance athletes. It can also be a sign of an underlying condition requiring medical ...

Sinus bradycardia occurs on an ECG when there is a normal upright P wave in lead II ― sinus P wave ― preceding every QRS complex with a ventricular rate of less than 60 beats per minute.

sinus bradycardia, sinoatrial block, and alternating episodes of tachycardia and bradycardia. [1] A large proportion of SND patients also have atrial fibrillation (AF) and prolonged sinus pauses ...

If you have bradycardia but are not having severe symptoms ... An electrical impulse is sent from the sinus node in the ...

Sinus bradycardia occurs on an ECG when there is a normal upright P wave in lead II (sinus P wave) preceding every QRS complex with a ventricular rate of less than 60 beats per minute. Frequently ...