Complications of untreated bradycardia vary depending on how slow the heart rate is, where the electrical conduction problem occurs and what kind of damage may be present in heart tissue.
If bradycardia is significant enough to cause symptoms, possible complications of the slow heart rate may include:
- Frequent fainting spells
- Inability of the heart to pump enough blood (heart failure)
- Sudden cardiac arrest or sudden death
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- What is an electrocardiogram? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/ekg/. Accessed Jan. 13, 2013.
- Hayes DL. Indications for permanent cardiac pacing. http://www.uptodate.com/home. Accessed Jan. 13, 2014.
- Prevention & treatment of arrhythmia. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/Prevention-Treatment-of-Arrhythmia_UCM_002026_Article.jsp. Accessed Jan. 8, 2014.
- Riggin EA. Decision Support System. Mayo Clinic, Rochester, Minn. Dec. 5, 2013.