Our easy-to-read patient fact sheet compares and contrasts sinus arrhythmia vs AFib (atrial fibrillation) symptoms.

A “sinus pause” ensues afterward and would ... the rhythm may be confused with a junctional rhythm. If no junctional escape rhythm is present, a long pause resulting in asystole and cardiac ...

With a sustained block of the SNS, the researchers observed loss of the day-night rhythm in sinus node pacemaking and in pacemaking ion channels. Surprisingly, the heart’s local circadian clock ...

Sinus bradycardia Sick sinus syndrome Sinus pause or arrest Tachy-brady syndrome Heart block Normal heart rhythm originates in the sinoatrial (SA) node, the heart's natural pacemaker, which ...

A junctional rhythm occurs when the electrical activation ... The morphology of the P wave will not be similar to the sinus P wave, which is normally upright in lead II and biphasic in lead ...

Prematurity of an ectopy is determined by the intrinsic escape rhythm of the ectopic focus ... it must precede the next sinus complex; otherwise, sinus depolarization would suppress it 2,3.