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Sick sinus syndrome cured by ... vitamin D?
1State Veterans Hospital, Rocky Hills, CT.
Geriatrics
|August 1, 1990
Summary
Vitamin D supplementation may help restore normal heart rhythm in patients with sick sinus syndrome (SSS) and atrial fibrillation. This case study suggests a potential new therapeutic avenue for managing these complex cardiac conditions.
Area of Science:
- Cardiology
- Electrophysiology
- Nutritional Science
Background:
- Sick sinus syndrome (SSS) is a common cause of bradycardia and can lead to atrial fibrillation.
- Antiarrhythmic drugs are often used to manage SSS and atrial fibrillation, but can have limited efficacy.
- Chronic atrial fibrillation poses significant risks, including stroke and heart failure.
Observation:
- A 77-year-old woman with SSS experienced persistent symptoms despite 5 years of antiarrhythmic drug treatment.
- She developed chronic atrial fibrillation during the fifth year of treatment.
- Two years after starting vitamin D for unrelated reasons, she spontaneously regained sinus rhythm and her atrial fibrillation resolved.
Findings:
- The patient's sinus rhythm was restored after initiating vitamin D supplementation.
- Episodes of atrial fibrillation ceased following vitamin D intake.
- The patient remained asymptomatic for over two years after the intervention.
Implications:
- Vitamin D may play a role in regulating cardiac rhythm and managing arrhythmias.
- This case suggests a potential adjunctive or alternative therapy for SSS and atrial fibrillation.
- Further research is warranted to explore the mechanisms and efficacy of vitamin D in cardiac rhythm disorders.