Bradycardia - Differential Diagnosis • Cardiac disease: Myocardial ischemia / infarction, Myocarditis, Congenital disorders, Cardiomyopathies, His-Purkinje fibre degeneration • Hypoxia • Electrolyte disturbance (e.g. hyperkalemia) • Medications, poisonings and toxic exposures (e.g. digoxin, beta blockers, calcium channel blockers, amiodarone, clonidine, organophosphates) • Hypothermia • Hypothyroidism • Raised intracranial pressure (Cushing response) • Infections (e.g. Lyme disease, diphtheria, typhoid fever) • Autoimmune (e.g. systemic lupus erythematosis) • Infiltrative disorders (e.g. sarcoidosis, amyloidosis) • Physiological causes (e.g. athletes, vagal stimuli) Sinai Hospital of Baltimore IM Residency @SinaiBmoreIMRes #Bradycardia #Differential #Diagnosis #cardiology
