| Assessment of right ventricular function during supine bicycle exercise after Mustard's operation. | |
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MedLine Citation:
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PMID: 7074768 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Right ventricular (RV) performance during supine bicycle exercise was evaluated by gated equilibrium nuclear angiography in 19 clinically well children with d-transposition of the great arteries (d-TGA), 6.4 +/- 2.7 years after Mustard's operation. Comparisons were made between rest and peak exercise. The mean resting ejection fraction was 44 +/- 12% (range 30-75%) and was unchanged at peak exercise. Eight children had a normal ejection fraction response, whereas 11 children had either no increase or a decrease in ejection fraction. Relative end-diastolic volumes decreased from resting values in all patients who had an abnormal ejection fraction response. Among patients whose ejection fraction increased, the end-diastolic volume increased in three, decreased in four and was unchanged in one at peak exercise. Heart rate increased 84% (range 52-135%) and systolic blood pressure increased 16% (range 0-28%) at peak exercise. There was no correlation between exercise response and age at surgery or interval since surgery. These data indicate that clinically well children after Mustard's procedure may have abnormal right ventricular function under stress, raising concerns about the ability of the right ventricle to function as the systemic ventricle. |
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Authors:
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L N Benson; J Bonet; P McLaughlin; P M Olley; D Feiglin; M Druck; G Trusler; R D Rowe; J Morch |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Circulation Volume: 65 ISSN: 0009-7322 ISO Abbreviation: Circulation Publication Date: 1982 Jun |
Date Detail:
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Created Date: 1982-07-19 Completed Date: 1982-07-19 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0147763 Medline TA: Circulation Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1052-9 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Cardiac Output Child Child, Preschool Female Hemodynamics Humans Male Myocardial Contraction* Physical Exertion* Transposition of Great Vessels / radionuclide imaging, surgery* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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