A 46-year-old member asked:
what exactly does it mean if an ecg result is that you have "normal sinus rhythm with marked sinus arrhythmia"?
1 doctor answer
Dr. ARMAN Askari answered
23 years experience Cardiology
It's normal: This is a normal variant. Sinus arrhythmia is a normal phenomenon. It involves cyclic changes in heart rate during breathing. It suggests a healthy parasympathetic nervous system.
Answered on Mar 8, 2018
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