Sinus arrhythmia is an abnormal heart rhythm that starts at the sinus node. Find out about the symptoms, types, and outlook for sinus arrhythmia.

Sinus arrhythmia requires some background information on the heartbeat rhythm. The heartbeat is regulated by a natural pacemaker known as the Sinoatrial (SA) node, situated in the right atrium.

Tachycardia describes when the heart beats faster than normal. Sinus rhythm with tachycardia occurs when the sinus node fires electrical impulses abnormally quickly. Inappropriate sinus ...

In this new analysis, we wanted to assess which biomarkers can be used to predict sinus rhythm at 12 months in patients with atrial fibrillation with and without early rhythm control therapy." ...

Sinus tachycardia, in the forms of four distinct rhythm disturbances, is frequently encountered in clinical practice but is often overlooked. The most common rhythm, normal sinus tachycardia ...

Having an idioventricular rhythm when the sinus node has failed means your heart's backup pacemaker is working properly.

In participants with sinus rhythm, but not AF, achieving a lower heart rate, irrespective of treatment, was associated with better prognosis (HR = 1.16 per 10 beats per minute; 95% CI, 1.11-1.22).

Sick sinus syndrome (SSS) is a group of heart rhythm problems that occur when the heart's natural pacemaker—the sinoatrial (SA) node, also known as the sinus node—doesn't function properly.

Atrial fibrillation is a common type of heart rhythm disorder where the heart doesn't beat efficiently. This makes the heart unable to pump enough blood out to the body with each heartbeat. It's ...