Reversible bradycardia secondary to myxedema coma: Case-report

Omar Kousa, Mohamed Mansour, Dana Awad, Amr Essa, Abdallah Qasim, Arindam Sharma, Mark Holmberg

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Myxedema coma occurs mostly in patients with longstanding untreated or undertreated hypothyroidism. Bradycardia is a well-known cardiac manifestation for myxedema coma; however, not all bradycardia with hypothyroidism are sinus bradycardia. Sick sinus syndrome is a group of arrhythmias caused by the malfunction of the natural pacemaker of the heart. Tachy-Brady syndrome is considered to be a type of sick sinus syndrome, where the heart alternates between tachycardia and bradycardia, and it is usually treated with pacemaker implantation along with rate slowing medical therapy. Here we report a case of an 83-year-old female who presented with myxedema coma and atrial fibrillation with tachycardia and intermittent slow ventricular response. We attempt to review the relationship between these two diseases and conclude that appropriate diagnosis of myxedema coma, may be beneficial in reducing the need for pacemaker implantation.

Original languageEnglish (US)
Pages (from-to)297-301
Number of pages5
JournalReviews in Cardiovascular Medicine
Issue number2
StatePublished - Jun 2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine


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