In order to cause SA node dysfunction, the occlusion in the RCA must be very proximal, as the SA nodal artery is one of the first branches of the RCA. The AV nodal artery, ...

The right coronary artery supplies the inferior myocardial segments as well as the right ventricle. In a majority of cases, the right coronary artery also supplies the SA node and the AV node ...

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.