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Use of ivabradine in tachycardia due to hyperthyroidism in a child: a case report and literature review

Published online by Cambridge University Press:  24 February 2025

Mehtap Küçük Open the ORCID record for Mehtap Küçük [Opens in a new window] ,
İlkay Erdoğan Open the ORCID record for İlkay Erdoğan [Opens in a new window] ,
Birgül Varan  and
N. Kürşad Tokel
Mehtap Küçük*
Affiliation:
Division of Cardiology, Department of Pediatrics, Başkent University Ankara Hospital, Ankara, Turkey
İlkay Erdoğan
Affiliation:
Division of Cardiology, Department of Pediatrics, Başkent University Ankara Hospital, Ankara, Turkey
Birgül Varan
Affiliation:
Division of Cardiology, Department of Pediatrics, Başkent University Ankara Hospital, Ankara, Turkey
N. Kürşad Tokel
Affiliation:
Division of Cardiology, Department of Pediatrics, Başkent University Ankara Hospital, Ankara, Turkey
*
Corresponding author: Mehtap Küçük; Email: mehtaph@gmail.com
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Abstract

Sinus tachycardia due to hyperthyroidism is generally treated with beta-blockers. But some patients do not respond to beta-blockers or may have non-tolerable side effects or have contraindications. We presented a case with persistent sinus tachycardia secondary to hyperthyroidism refractory to maximal doses of propranolol. After ivabradine treatment, her heart rate was < 100 bpm within 24 hours. There were no electrocardiogram changes or side effects. The use of ivabradine is promising and can be considered in cases where tachycardia cannot be controlled in children with hyperthyroidism.

Keywords

ChildGraves’ diseasehyperthyroidismivabradinetachycardiathyrotoxicosis
Type
Original Article
Information
Cardiology in the Young , First View , pp. 1 - 4
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Copyright
© The Author(s), 2025. Published by Cambridge University Press

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References

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