Document Detail

Assessment of cardiac reserve in patients with hyperthyroidism.
MedLine Citation:
PMID:  6893178     Owner:  NLM     Status:  MEDLINE    
Radionuclide multigated cardiac imaging was performed to assess functional cardiac reserve in patients with hyperthyroidism. In 11 normal individuals, submaximl supine exercise increased heart rate (HR) by 60 percent, systolic blood pressure (BP) by 54 percent, and the left ventricular ejection fraction (LVEF) by 13 percent. All of these increments were statistically significant (p < 0.001). Eight patients with hyperthyroidism were studied. Their mean +/- standard error of the mean (SEM) serum thyroxine level was 17.7 +/- 0.5 micrograms percent. There was a negative correlation between serum thyroxine levels and LVEF, both at rest and during exercise, in the patients with hyperthyroidism. Our data suggest that hyperthyroidism is associated with impaired functional cardiac reserve.
R B Shafer; J A Bianco
Related Documents :
11930068 - Exercise mr imaging in the assessment of pulmonary regurgitation and biventricular func...
3794108 - Left ventricular volume during supine exercise: importance of myocardial scar in patien...
7090988 - Cardiac response to exercise in patients with chronic aortic regurgitation.
306578 - Effects of coronary-artery bypass on global and regional left ventricular function duri...
17679568 - Pilot fatigue in short-haul operations: effects of number of sectors, duty length, and ...
24036178 - Optoelectronic plethysmography: intra-rater and inter-rater reliability in healthy subj...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chest     Volume:  78     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  1980 Aug 
Date Detail:
Created Date:  1980-10-27     Completed Date:  1980-10-27     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  269-73     Citation Subset:  AIM; IM; S    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Blood Pressure
Cardiac Output
Graves Disease / blood,  physiopathology
Heart / radionuclide imaging
Heart Rate
Hyperthyroidism / blood,  physiopathology*
Middle Aged
Physical Exertion
Thyroxine / blood
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Effect of 1,25-dihydroxycholecalciferol on the duodenal villi and alkaline phosphatase in the develo...
Next Document:  Pattern EPS in endocrine orbitopathy.