The heart's normal sinus rhythm is created by electrical signals that spread throughout the heart in an organized manner along a certain route at a particular speed. This article explores sinus ...

"I got into an episode today. Doctors checked me out and it got back into sinus rhythm, normal rhythm." Harbaugh said he had two other similar episodes, one in 1999 and one during a 2012 Monday ...

then the term “ectopic atrial rhythm” is used. Because the origination of this electrical activity is not from the sinus node, the P wave would not have its normal sinus appearance ― that is ...

1 Department of Family ... I second-degree AV block. Sinus bradycardia is defined as a heart rate of <60 beats/min and is present in up to 80% of highly trained athletes.6,11 Heart rates ≥30 beats/min ...