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 ...

Specifically, the two patients who received AAD (amiodarone and propafenone, respectively) after ablation did not develop any AAD-related bradycardia after the procedure. Sinus rhythm was ...

With sick sinus syndrome, the SA node may make your heart beat too slowly (bradycardia), too quickly ... or fatigue. Treatment depends on the severity of your symptoms and the underlying cause ...

A scientific statement regarding COVID-19-associated cardiac arrhythmias and autonomic dysfunction has been published by the AHA.