Disease of the Sinoatrial Node Associated with Bradycardia, Asystole, Syncope, and Paroxysmal Atrial Fibrillation

Abstract
Disease of the sinoatrial node due to coronary arteriosclerosis is rare. An unusual combination of arrhythmias attributed to disease of the sinus node and the effects of various pharmacologic agents, especially atropine, are described and discussed.