
What is sinus bradycardia and where does it start from. Sinus bradycardia starts from the sinus node; it is a heart rhythm and has a rate of fewer than 60 beats per minute (bps). Simple words on what is sinus bradycardia they are the sinus beat when a resting heart strikes 60 bps or even less. The sinus rhythms cause a P-wave on the ECG which means it is normal in terms of...