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04:09
Minimal Invasive Resection of Large Retrosternal Thyroid Goiter
Published on: September 20, 2024
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A Refractory Case of Amiodarone Thyrotoxicosis
Marta Fonseca1, Mário Ferreira1, Joana Paulo1
1Internal Medicine, Hospital Professor Doutor Fernando Fonseca, Lisbon, PRT.
Cureus
|October 3, 2022
Summary
Amiodarone, used for atrial fibrillation, can cause thyroid issues. A patient developed refractory arrhythmia due to amiodarone-induced thyrotoxicosis, requiring plasmapheresis and thyroidectomy.
Area of Science:
- Cardiology
- Endocrinology
- Pharmacology
Background:
- Amiodarone is a key antiarrhythmic drug for managing cardiac arrhythmias, notably atrial fibrillation.
- Thyroid dysfunction is a recognized adverse effect of amiodarone therapy.
Observation:
- A patient presented with refractory rapid ventricular response atrial fibrillation.
- The refractory arrhythmia was attributed to Type II thyrotoxicosis, a consequence of amiodarone treatment.
Findings:
- The patient's condition was unresponsive to standard pharmacological and electrical therapies.
- Aggressive treatment including plasmapheresis and total thyroidectomy was necessary for hormonal and cardiac rhythm control.
Implications:
- This case highlights the critical need for vigilant monitoring of amiodarone-induced thyrotoxicosis.
- Understanding amiodarone's potential for both therapeutic benefit and severe adverse effects is crucial for patient management.
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