Cited by 31Thyroid Disorders and TreatmentsCardiac electrophysiology and arrhythmiasPharmacovigilance and Adverse Drug Reactions

Continuation of Amiodarone Therapy Despite Type II Amiodarone-Induced Thyrotoxicosis

Uzan, Laurent, Guignat, Laurence, Meune, Christophe, Mouly, St??phane, Weber, Simon, Bertagna, Xavier, Bertherat, J??r??me, Thomopoulos, Pierre +1 more·2006·Drug Safety

Abstract

Background Amiodarone is a powerful antiarrhythmic drug; however, its use may be complicated by thyrotoxicosis. When this occurs, clinicians must balance the continuation of amiodarone for antiarrhythmic purposes, and the discontinuation of treatment in order to prevent aggravation of the thyrotoxicosis. We studied the consequences of continuation or cessation of amiodarone in patients with type II amiodarone-induced thyrotoxicosis.Methods Consecutive patients who developed type II amiodarone-induced thyrotoxicosis between September 1997 and September 2000 were studied. Amiodarone was continued in patients with previous ventricular arrhythmia or supraventricular arrhythmia associated with severe haemodynamic changes and was withdrawn in the other patients. In patients with persistent, severe symptomatic thyrotoxicosis, corticosteroids were added to therapy.Results Thirteen patients were studied (nine with previous atrial fibrillation/flutter and four with ventricular tachycardia). Amiodarone treatment was continued in ten patients, including eight patients who received corticosteroids, and was temporarily halted in three patients. All patients recovered, with no difference in the duration of thyrotoxicosis between the two groups. Corticosteroid treatment was well tolerated and seemed to hasten the return to a euthyroid state (mean of 3.7 +/- 0.7 months vs 6.3 +/- 1.7 months). No recurrence of hyperthyroidism occurred during long-term follow-up.Conclusion In patients who require amiodarone, treatment may be safely continued despite the development of type II amiodarone-induced thyrotoxicosis.

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Crossref · 10.2165/00002018-200629030-00006

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Authors
Uzan, L., Guignat, L., Meune, C., Mouly, S., Weber, S., Bertagna, X., Bertherat, J., Thomopoulos, P., & Duboc, D.
Affiliations
  • Hôpital Cochin (FR)
  • Hôpital Lariboisière (FR)
Corresponding author
Meune, Christophe
Venue
Drug Safety
Published
2006
Volume
29
Issue
3
Pages
231-236
ISSN
0114-5916 (ISSN-L)
OpenAlex
W2022208755
Cited by
31
References
24
Citations by year
2024: 1 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 1 · 2018: 4 · 2016: 1 · 2015: 1 · 2014: 3 · 2013: 1
FWCI
1.55
Type
journal article
Language
en
Open access
closed
Locations
  • Drug Safety (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Pharmacovigilance and Adverse Drug Reactions
Keywords
amiodarone, corticosteroid therapy, atrial fibrillation, atrial flutter, ventricular tachycardia, hyperthyroidism, drug-induced thyroid dysfunction, antiarrhythmic drug withdrawal
MeSH terms
Adolescent, Adult, Aged, Aged, 80 and over, Amiodarone, Anti-Arrhythmia Agents, Female, Humans, Male, Middle Aged, Prospective Studies, Tachycardia, Supraventricular, Thyrotoxicosis, Ventricular Fibrillation, Databases, Factual, Treatment Outcome, Practice Guidelines as Topic

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