First degree AV block causes
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Raviteja Guddeti, M.B.B.S. [3] Synonyms and keywords:
Overview
Causes
Life Threatening Causes
Life-threatening conditions can result in death or permanent disability within 24 hours if left untreated.
Common Causes
Causes by Organ System
Cardiovascular | AV nodal disease, Myocarditis, Acute myocardial infarction (especially acute inferior MI), Hypertension, Acute rheumatic fever, Dilated cardiomyopathy, HCM, Myocarditis, Valvular heart disease, Transposition of the great vessels, ASDs, Ebstein's anomaly, VSD, Tetralogy of Fallot, Endocardial cushion defect, Lev's disease |
Chemical / poisoning | No underlying causes |
Dermatologic | No underlying causes |
Drug Side Effect | Calcium channel blockers, Beta-blockers, Digitalis, Cardiac glycosides, Cholinesterase inhibitors, Quinidine, Procainamide, Disopyramide, Flecainide, Encainide, Propafenone, Amiodarone, Sotalol, Dofetilide, Ibutilide, Magnesium |
Ear Nose Throat | No underlying causes |
Endocrine | No underlying causes |
Environmental | No underlying causes |
Gastroenterologic | Hemochromatosis |
Genetic | No underlying causes |
Hematologic | No underlying causes |
Iatrogenic | No underlying causes |
Infectious Disease | Acute rheumatic fever, Chagas disease, Diphtheria, Lyme disease, Myocarditis, Tuberculosis |
Musculoskeletal / Ortho | Ankylosing spondylitis, Muscular dystrophy |
Neurologic | No underlying causes |
Nutritional / Metabolic | No underlying causes |
Obstetric/Gynecologic | No underlying causes |
Oncologic | No underlying causes |
Opthalmologic | No underlying causes |
Overdose / Toxicity | No underlying causes |
Psychiatric | No underlying causes |
Pulmonary | Sarcoidosis |
Renal / Electrolyte | No underlying causes |
Rheum / Immune / Allergy | Ankylosing spondylitis, Dermatomyositis, Scleroderma, SLE, Rheumatoid arthritis |
Sexual | No underlying causes |
Trauma | No underlying causes |
Urologic | No underlying causes |
Dental | No underlying causes |
Miscellaneous | Amyloidosis, Enhanced vagal tone (for example in athletes), Normal variants |
Causes in Alphabetical Order
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