Key result
Atrioventricular block is a rare but potentially reversible cardiac manifestation of hyperthyroidism, highlighting the need to recognize this association to avoid unnecessary pacemaker implantation.
Why the study?
Much remains unknown regarding the prevalence, clinical course, optimal management, and outcomes of AVB in patients with HTH, leading to possible pacemaker overtreatment for potentially reversible conduction disease.
Highlights that atrioventricular block in hyperthyroidism may be reversible, cautioning against unnecessary pacemaker implantation.
AVB in hyperthyroidism may resolve with thyroid treatment; leaves open prevalence, reversibility, and pacing decisions.
Atrioventricular block (AVB) is a rare cardiac manifestation of hyperthyroidism (HTH). The scientific literature contains multiple reports of AVB in patients with HTH, ranging from subclinical to overt HTH and even thyroid storm. However, much remains unknown about the true prevalence, clinical course, optimal management, and outcomes of AVB in patients with HTH. Such patients are possibly overtreated with pacemakers because of a lack of understanding that AVB might be secondary to the hyperthyroid state and thus reversible. This narrative review discusses the pathophysiology of AVB in patients with HTH in the context of the available evidence.
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Fateen Ata (2024) conducted a review in Atrioventricular block in patients with hyperthyroidism. Hyperthyroidism was evaluated. Atrioventricular block is a rare but potentially reversible cardiac manifestation of hyperthyroidism, highlighting the need to recognize this association to avoid unnecessary pacemaker implantation.