See Also: Complete Heart Block (heart block)(health)
heart block(medicine)
Heart block(health)
congenital heart block(medicine)
partial heart block(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
Heart Failure (congestive heart failure, CHF)(health)
Congestive Heart Failure (CHF or heart failure)(health)

heart block (medicine)


heart block
<cardiology, physiology> A conduction disturbance that results in the inappropriate delay (or complete inability) of a electrical impulse, generated in the atria, to reach the ventricles (via the atrioventricular node).

Clinical types are divided into first (nonserious), second and third degree (most serious) AV blocks. Some drugs may precipitate an AV block (for example clonidine, methyldopa, verapamil). A permanent pacemaker may be required for a third degree (complete) heart block.