Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Sinus bradycardia pathophysiology
Introduction
Overview
Overview
Pathophysiology
Pathophysiology
This rhythm may be caused by one of the following:
- Increased vagal tone
- Intrinsic disease of the SA node
- An effect of drugs, such as the use of digitalis or beta-blockers
- Sleep
- Sinus bradycardia is a normal finding in a healthy, well-conditioned athlete
The HCN4 genetic variant is associated with sinus bradycardia. Certain sodium channelopathies are associated with sinus bradycardia.[1]
References
References
- ↑ Milanesi R, Baruscotti M, Gnecchi-Ruscone T, DiFrancesco D (2006). “Familial sinus bradycardia associated with a mutation in the cardiac pacemaker channel”. The New England Journal of Medicine. 354 (2): 151–7. doi:10.1056/NEJMoa052475. PMID 16407510. Retrieved 2011-02-23. Unknown parameter
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Cafer Zorkun, M.D., Ph.D. [2]