An examination of myth: a favorable cardiovascular risk-benefit analysis of high-dose thyroid for affective disorders

Journal of Affective Disorders
Tammas Kelly

Abstract

High dose thyroid (HDT) is included in major treatment guidelines for the treatment of bipolar disorders. Yet it is seldom used partly based on perceived cardiovascular risks. The cardiovascular risks of HDT are examined. A literature search was conducted for the cardiovascular risks of HDT and for comparisons sake psychiatric medications. Case reports of atrial fibrillation (afib) associated with HDT are reported. While hyperthyroidism is a significant cardiovascular risk factor causing a 20% premature death rate, HDT treatment does not appear to be of significant cardiovascular risk. HDT differs from hyperthyroidism in significant ways. The sequela of hyperthyroidism are increasingly tied to autoimmune complications which are absent with HDT. Equating hyperthyroidism with HDT is incorrect. The five case reports of HDT treatment associated with afib were potentially caused by other factors. If HDT increases the risks of afib, monitoring for afib would minimizes the risk. Even in overt hyperthyroidism the risk of other arrhythmias are minimal. When compared to many psychiatric medications HDT is as safe or safer. There are no direct studies of cardiovascular risks of HDT for affective patients. High tolerance of a medication do...Continue Reading

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Citations

Jun 16, 2016·Progress in Neuro-psychopharmacology & Biological Psychiatry·Tammas KellyDaniel Z Lieberman

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