Complete AV dissociation, impulses from atria cannot be conducted to ventricles
Drug therapy e.g. beta blockade, fibrosis of conductive tissue, Lyme disease, acute rheumatic fever, aortic valve disease, sarcoidosis, myocarditis, MI, idiopathic
Bradycardia, hypotension
Can be asymptomatic, SOB, chest pain, pre-syncope/syncope
ECG: No association between p-waves and ventricular conduction
Echo: To assess for any structural abnormalities
Stop offending drugs
A temporary pacing wire may be required
Long-term PPM
Untreated at high risk of sudden cardiac death, once treated prognosis is good
Death, injuries from syncope