Short-Term effects of amiodarone on thyroid function on Aegean region population of Turkey: A prospective regional and observational study
Halit Acet 1 * , Faruk Ertaş
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1 Dicle Üniversitesi Tıp Fakültesi, Kardiyoloji, Diyarbakır, Turkey* Corresponding Author

Abstract

Objective: We aimed to investigate short term effects of oral and infusion dosages of amiodarone on thyroid function.
Methods: A hundred and fifty-five prospectively consecutive patients with a diagnosis of atrial or ventricular arrhythmias admitted to our clinic whom amiodarone were applied enrolled to our study. 134 patients received 16 mg/kg amiodarone iv infusion for 24 hours and oral 500±100 mg/day amiodarone as the maintenance dose for one month. 21 patients received only oral 500±100 mg/day amiodarone dose for one month. Follow up visit was performed in the first month of amiodarone therapy.
Results: In this study 68% of patients were male and the average age of the patients was 62.8±13.5. The indications for amiodarone treatment were atrial fibrillation (41%), ventricular tachycardia (41%), and preoperative (5%), supraventricular tachycardia (5%), atrial flutter (5%), and ventricular fibrillation (3%). At the first month of follow up 83% of patients were in euthyroid state, 17% of the patients had amiodarone induced thyroid dysfunction (TD), 5% of patients had subclinical hyperthyroidism, 5% of patients had manifest hypothyroidism, 7% of patients had subclinical hyperthyroidism, and 1% of the patients developed overt hyperthyroidism.
Conclusion: In this study we showed that amiodarone can cause adverse effects on thyroid function in a short time of period. For this reason patients should be followed in the first, third, sixth and twelfth months of amiodarone therapy and thyroid function should be evaluated.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Research Article

J Clin Exp Invest, 2014, Volume 5, Issue 2, 280-285

https://doi.org/10.5799/ahinjs.01.2014.02.0403

Publication date: 11 Jun 2014

Article Views: 1935

Article Downloads: 981

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