| Significance of abnormal blood pressure response during exercise-induced myocardial dysfunction after recent acute myocardial infarction. | |
MedLine Citation:
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PMID: 3591678 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The relation between exercise left ventricular ejection fraction and blood pressure (BP) responses after an acute myocardial infarction (AMI) was investigated. Twenty-eight to 37 days after an uncomplicated AMI, 224 consecutive patients underwent exercise radionuclide angiography in the 40 degrees semisupine position. In 180 patients (group A, 80%), BP increased more than 5 mm Hg every stage; in 44 patients, BP responses were abnormal; in 33 (group B, 15%), BP did not increase during 2 stages; in 11 (group C, 5%), it decreased more than 5 mm Hg after an initial increase. Ejection fraction did not differ significantly among the 3 groups at rest (51 +/- 13 in group A, 50 +/- 18 in group B, 47 +/- 13 in group C [difference not significant]) or at peak exercise (51 +/- 16% in group A, 46 +/- 19% in group B, and 43 +/- 16% in group C, [difference not significant]). Exercise-induced left ventricular failure or hemodynamic decompensation occurred in 22 patients. In these patients, ejection fraction at rest was 44 +/- 19% and decreased to 35 +/- 16% (p less than 0.05) with exercise. Only 9 of these patients (41%) had abnormal BP responses, with the other 13 (59%) showing a normal BP responses. The The 35 patients with abnormal BP responses in the absence of hemodynamic decompensation were asymptomatic, terminating exercise because of fatigue. The ejection fraction at rest and during exercise in these patients was similar to that in patients with normal BP responses.(ABSTRACT TRUNCATED AT 250 WORDS) |
Authors:
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G Mazzotta; G Scopinaro; M Falcidieno; F Claudiani; E De Caro; R O Bonow; C Vecchio |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The American journal of cardiology Volume: 59 ISSN: 0002-9149 ISO Abbreviation: Am. J. Cardiol. Publication Date: 1987 Jun |
Date Detail:
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Created Date: 1987-07-21 Completed Date: 1987-07-21 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1256-60 Citation Subset: AIM; IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Angiography Blood Pressure* Cardiomyopathies / physiopathology* Exercise Test* / adverse effects Female Heart Diseases / etiology Humans Male Middle Aged Myocardial Infarction / physiopathology*, radionuclide imaging Stroke Volume |
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