arrhythmia AE sinus arrest AE sinoatrial arrest AE 窦性停博 sinus pause AE 窦性停搏 Sinus arrest AE is an arrhythmia AE that is a medical condition wherein the sinoatrial node of the heart transiently ceases to generate the electrical impulses that normally stimulate the myocardial tissues to contract and thus the heart to beat. It is defined as lasting from 2.0 seconds to several minutes. MedDRA: 10040738 WEB: http://en.wikipedia.org/wiki/Sinoatrial_arrest JX, LW, YH