Abnormally slow heart rates result from breakdowns in two principal areas of the heart. First, the sinoatrial, or SA, node sets your "resting" heart rate, usually somewhere between 60 and 100 beats ...

This occurs when the activity of the heart’s pacemaker, the sinoatrial node, is impaired. Up to now, no-one has been able to work out why this happens. But groundbreaking research by Professor Henggui ...

Subsequent data analysis found that a ‘subsidiary atrial pacemaker’ (SAP) takes over from the nearby sinoatrial, or SA Node, the primary way the heart generates electrical signals that make it beat, ...

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mononuclear cell infiltration and thrombosis of the sinoatrial node artery. However, for the histopathologist, the significance of these findings, together with the lack of normal controls, make a ...

An arrhythmia is a disturbance in the heart's electrical function, causing the sinoatrial node, the body's natural pacemaker, to malfunction and fire abnormally, leading to the irregular heart rhythm.

The atrioventricular node (AVN) has mystified generations of investigators over the last century and continues today to be at the epicenter of debates among anatomists, experimentalists, and ...

MacDonald EA, Stoyek, MR, Rose RA, Quinn TA. Intrinsic regulation of sinoatrial node function and the zebrafish as a model of stretch effects on pacemaking. Prog Biophys Mol Biol. 2017; 130:198-211.

First, the sinoatrial, or SA, node sets your "resting" heart rate, usually somewhere between 60 and 100 beats per minute.