Cited by 371Thyroid Disorders and TreatmentsCardiovascular Function and Risk FactorsHormonal and reproductive studies

Thyroid hormone and the cardiovascular system

Klein, Irwin·1990·The American Journal of Medicine

Abstract

To understand the pathophysiology of thyroid heart disease, it is necessary to recognize that thyroid hormone has effects on both the peripheral circulation and the myocardium. One of the earliest responses to thyroid hormone administration is a decline in systemic vascular resistance and an increase in cardiac output and cardiac contractility. In many ways, this response is similar to the cardiovascular response to exercise and is associated with increased left ventricular work. The majority of cardiac adaptations to changes in thyroid function are physiologic; however, certain patients do demonstrate clinical evidence of cardiac disease. Atrial arrhythmias, limitations in exercise tolerance, and congestive heart failure are reported to occur as a result of hyperthyroidism and are more common in older patients. Thyroid hormone also plays an important role in the regulation of blood pressure. Diastolic hypertension is a common accompaniment of hypothyroidism. By understanding the mechanisms by which thyroid hormone affects both the peripheral circulation as well as the myocardium, it is possible to predict the clinical response to the treatment of various thyroid disease states.

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Crossref · 10.1016/0002-9343(90)90531-h

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57 of 57 references verified0 citation errors · 0 not checkable

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  • Sympatho-adrenal stimulation could contribute to sustain BP levels during acute hypothyroidism as a possible mechanism counteracting the decrease in myocardial inotropism and cardiac output.

    “Sympatho-adrenal stimulation could thus contribute to sustain BP levels during acute hypothyroidism as a possible mechanism counteracting the decrease in myocardial inotropism and cardiac output (4,14,15).”
  • A sensation of palpitation may stem from sinus tachycardia and/or increased cardiac contractility, both of which may have various causes: fever, anaemia, orthostatic hypotension, hyperthyroidism/thyreotoxicosis, postmenopausal syndrome, pregnancy, hypoglycaemia, hypovolaemia, pheochromocytoma, arteriovenous fistula, postural orthostatic tachycardia syndrome, among others.

    “A sensation of palpitation may stem from sinus tachycardia and/or increased cardiac contractility, both of which may have various causes: fever, anaemia, orthostatic hypotension, hyperthyroidism/ thyreotoxicosis, postmenopausal syndrome, pregnancy, hypoglycaemia, hypovolaemia, pheochromocytoma, arteriovenous fistula, postural orthostatic tachycardia syndrome, among others.31 -39”

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Authors
Klein, I.
Affiliations
Cornell University (US)
Corresponding author
Klein, Irwin
Venue
The American Journal of Medicine
Publisher
Elsevier BV
Published
1990-06
Volume
88
Issue
6
Pages
631-637
ISSN
0002-9343 (ISSN-L)
OpenAlex
W2073919574
Cited by
370
References
57
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 6 · 2022: 8 · 2021: 6 · 2020: 7 · 2019: 4 · 2018: 8 · 2017: 10 · 2016: 7 · 2015: 7 · 2014: 4 · 2013: 8 · 2012: 4
FWCI
2.52
Type
journal article
Language
en
Open access
closed
Locations
  • The American Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1r01hl041304-01)
  • National Heart, Lung, and Blood Institute (HL-41304)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
Keywords
thyroid hormones, hyperthyroidism, hypothyroidism, systemic vascular resistance, cardiac output, cardiac contractility, left ventricular work, atrial arrhythmias, exercise intolerance, congestive heart failure, diastolic hypertension, blood pressure regulation, myocardium
MeSH terms
Heart, Heart Diseases, Hemodynamics, Humans, Myocardial Contraction, Thyroid Diseases, Thyroxine, Triiodothyronine

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