Cardiac causes include—sinus bradycardia, conduction system abnormalities, congenital heart disease and channelopathies. Diagnostic investigations typically include a standard 12-lead ECG, 24-hour ...

While this can be normal for athletes and during sleep, symptomatic bradycardia requires medical attention. Common types and causes Sinus bradycardia represents the most common form, occurring ...

Eleven studies describing sinoatrial (SA) nodal, atrioventricular (AV) nodal or infra-Hisian conduction parameters in the setting of cocaine use were found. Fourteen studies and two case series ...

Syncope is a transient loss of consciousness and postural tone followed by spontaneous recovery without therapeutic intervention. It is a common clinical problem, the origins of which are often ...