It is notable that the ECG obtained at presentation showed the presumed sinus rhythm with first-degree atrioventricular block (PR interval, 230 milliseconds), along with right bundle-branch block and ...

How often should I take an ECG reading? Provided your heart gets a normal sinus rhythm, you’re likely to only need to periodically take an ECG test, just to check everything is in order.

Sinus arrhythmia is a variation in the heart's sinus rhythm, usually caused by changes in a person's breathing cycle. It's a ...