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The anti-arrhythmic effects of prednisone in patients with sarcoidosis
1Department of Medicine, The George Washington University, Medical Center, Washington, DC 20037, USA. amr.mohsen@va.gov
Insights
Atrial fibrillation (AF) is a common heart rhythm disorder. A case study shows prednisone successfully treated AF caused by cardiac sarcoidosis, refractory to standard treatments.
Area of Science:
- Cardiology
- Immunology
Background:
- Atrial fibrillation (AF) is the most common cardiac arrhythmia, with increasing prevalence due to an aging population.
- Classical risk factors include hypertension, valvular disease, and thyroid disease, but etiology is often unknown.
- Current treatments like medications and radiofrequency ablation (RFA) carry risks and may not always be effective.
Observation:
- A patient presented with symptomatic AF refractory to multiple antiarrhythmic drugs and an RFA procedure.
- The underlying cause of AF was identified as cardiac sarcoidosis, characterized by myocardial granulomatous involvement and systemic inflammation.
Findings:
- Treatment with prednisone, a corticosteroid, led to the resolution of symptomatic AF.
- This suggests a potential therapeutic role for anti-inflammatory agents in specific cases of AF.
Implications:
- Cardiac sarcoidosis should be considered in patients with refractory AF of unknown etiology.
- Corticosteroid therapy may be a viable option for AF associated with inflammatory conditions like sarcoidosis.
- Further research is warranted to explore the link between systemic inflammation and cardiac arrhythmias.
Abstract:
Atrial fibrillation (AF) affects 2.3 million people in the United States and is currently the most common cardiac arrhythmia. Its overall prevalence is only increasing as the population ages. The classical risk factors for developing AF include hypertension, valvular disease, ischemic cardiomyopathy, and thyroid disease. In some patients with AF, an underlying cardiovascular pathology is not identified and the etiology remains unknown. Treatment modalities for AF typically include rate control medications, antiarrhythmics and radio frequency ablation (RFA), each of which is accompanied by its own risk of complications. We report a case of symptomatic AF that was refractory to multiple antiarrhythmics and an RFA procedure which resolved with prednisone. In this case, AF was associated with cardiac sarcoidosis, a disorder that is thought to be due to granulomatous involvement of the myocardium and increased systemic inflammation.
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