Sinus arrhythmia refers to a changing sinus node rate with the respiratory cycle, on inspiration and expiration. This is quite common in young, healthy individuals and has no clinical significance.

Sinus tachycardia is rarely a primary cardiac arrhythmia and almost always caused ... and is a form of autonomic dysfunction. Sinus node modification or ablation procedures can be done; however ...

including sinus arrhythmia. Continue reading to learn more about sinus bradycardia and how it’s diagnosed and treated. Sinus bradycardia happens when the sinus node generates a heartbeat fewer ...

Both promptly reverted to normal sinus rhythm. One patient was digitalized several hours after diphenylhydantoin was given (Fig. 1). In the other patient the arrhythmia did not recur after the ...

Importantly, transcription factors in the sinus node lost rhythmicity following the sustained β-adrenergic blockade ... “Frequently in cardiovascular disease arrhythmias, people are prescribed beta ...