Nikolas
Created page with "The cardiac conduction system goes from the SA node -> atria -> AV node -> His bundle -> Purkinje fibres -> ventricles. Block at the area of the SA node is called SA block while block at the area of the AV node is called AV block. == Etiology == * Ischaemic heart disease ** AMI * Cardiomyopathy * Myocarditis * High vagal tone * Drugs ** Digitalis ** Beta blockers * Electrolyte abnormalities == Sinoatrial block == SA block refers to the impaired impulse conduction from..."
