Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-6-30
pubmed:abstractText
In the absence of fixed coronary artery disease, thyrotoxicosis is rarely associated with acute myocardial infarction and/or ischemia. There are no known reports on the association of acute myocardial infarction with iatrogenic or factitious thyrotoxicosis in the absence of fixed coronary artery stenosis or coronary artery spasm. A 68-year-old woman, clinically in a state of thyrotoxicosis as a result of taking 0.3 g/d of exogenous thyroid replacement, sustained a severe, reversible myocardial ischemic event. Echocardiographic and scintigraphic evaluations demonstrated a large apical dyskinetic region. Subsequently, after the original dose of levothyroxine sodium was reduced to 0.15 mg and the patient became euthyroid, two-dimensional echocardiography and scintigraphic and cardiac catheterization studies demonstrated normal left ventricular contractility and normal coronary anatomy. Coronary artery spasm was not induced by ergonovine maleate therapy. Exogenous thyroid administration may directly influence myocardial oxygen supply and demand, exclusive of coronary artery disease and coronary spasm. A critical imbalance may then result in acute myocardial ischemia and reversible left ventricular segmental wall motion abnormalities.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0003-9926
pubmed:author
pubmed:issnType
Print
pubmed:volume
148
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1450-3
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Myocardial infarction, severe reversible ischemia, and shock following excess thyroid administration in a woman with normal coronary arteries.
pubmed:affiliation
Department of Medicine, University of California, San Francisco.
pubmed:publicationType
Journal Article, Case Reports