Atrial Standstill, also known as cardiomyopathy, familial, with conduction disturbance, is related to atrial standstill 1 and syncope. An important gene associated with Atrial Standstill is SCN5A (Sodium Voltage-Gated Channel Alpha Subunit 5), and among its related pathways/superpathways is Antiarrhythmic Pathway, Pharmacodynamics. Affiliated tissues include heart and skeletal muscle, and related phenotypes are ventricular escape rhythm and palpitations