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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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Cardioversion-Induced Takotsubo Cardiomyopathy.

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Summary

Takotsubo cardiomyopathy (TCM) is a reversible heart condition. A 77-year-old woman developed TCM after atrial fibrillation cardioversion, showing temporary heart dysfunction that resolved with treatment.

Keywords:
atrial fibrillationcardiac imagingcardioversionstress cardiomyopathytakotsubo cardiomyopathy

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Area of Science:

  • Cardiology
  • Cardiovascular Medicine

Background:

  • Takotsubo cardiomyopathy (TCM), or stress-induced cardiomyopathy, is a transient left ventricular dysfunction.
  • It is typically triggered by significant emotional or physical stressors.

Observation:

  • A 77-year-old woman experienced chest pain, shortness of breath, and edema four days post-cardioversion for atrial fibrillation.
  • Initial imaging post-cardioversion showed intact global systolic function.

Findings:

  • A repeat echocardiogram revealed a significant decrease in cardiac function, with an ejection fraction of 20-25%.
  • The patient's symptoms resolved within three days of management with IV diuretics.

Implications:

  • This case highlights cardioversion as a potential, albeit rare, trigger for Takotsubo cardiomyopathy.
  • Prompt diagnosis and management led to symptom resolution and improved cardiac function, underscoring TCM's reversible nature.