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Atrioventricular block in patients with hyperthyroidism: a narrative review
1Department of Endocrinology, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar.
The Journal of International Medical Research
|January 11, 2024
Summary
Atrioventricular block (AVB) is a rare cardiac issue in hyperthyroidism (HTH). Recognizing AVB as a reversible HTH complication may prevent unnecessary pacemaker treatments.
Area of Science:
- Cardiology
- Endocrinology
Background:
- Atrioventricular block (AVB) is an uncommon cardiac manifestation of hyperthyroidism (HTH).
- Existing literature documents AVB across the spectrum of HTH severity, from subclinical to thyroid storm.
- Key aspects like prevalence, clinical course, management, and outcomes of AVB in HTH remain under-researched.
Approach:
- This narrative review synthesizes current evidence on AVB in hyperthyroid patients.
- It explores the underlying pathophysiology connecting HTH and AVB.
- The review aims to clarify the relationship and inform clinical practice.
Key Points:
- Hyperthyroidism can lead to atrioventricular block.
- AVB in HTH may be reversible with thyroid hormone level normalization.
- Patients with HTH and AVB might be overtreated with pacemakers due to a lack of awareness of this association.
Conclusions:
- Further research is needed to establish the true prevalence and optimal management strategies for AVB in HTH.
- Understanding the potential reversibility of AVB in HTH is crucial for appropriate patient care.
- This review highlights the importance of considering HTH in patients presenting with AVB.
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