Bradycardia resident survival guide
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]: Associate Editor(s)-in-Chief: Ogheneochuko Ajari, MB.BS, MS [2]
Definition
Sinus bradycardia is defined as a sinus rhythm with a rate below 60 beats per minute.
Causes
Life Threatening Causes
Life-threatening conditions which may result in death or permanent disability within 24 hours if left untreated.
Common Causes
- Amiodarone
- Amitriptyline
- Beta-blockers
- Cardiac glycosides
- Cardiomyopathy
- Carotid sinus hypersensitivity
- Clonidine
- Diltiazem
- Dronedarone
- Flecainide
- Friedreich ataxia
- Heart transplant
- Hypertensive heart disease
- Hypothermia
- Hypothyroidism
- Ischemic heart disease
- Lithium
- Lyme disease
- Methyldopa
- Obstructive sleep apnea
- Pericarditis
- Phenothiazines
- Procainamide
- Propafenone
- Quinidine
- Reserpine
- Rheumatic fever
- Sepsis
- Trauma
- Vasovagal syncope
- Verapamil
- Viral myocarditis