Document Detail


Value of isometric exercise testing during cardiac catheterization in mitral stenosis.
MedLine Citation:
PMID:  6613876     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To examine the value of preoperative isometric exercise testing during cardiac catheterization in patients with mitral stenosis, the isometric handgrip exercise test was performed on 28 patients during preoperative diagnostic catheterization. Eighteen patients who subsequently underwent mitral valve surgery were recatheterized and reevaluated clinically 12 months after operation. Preoperatively, the patients were divided into 2 groups: 16 whose mean mitral valve pressure gradient increased greater than 4 mm Hg during isometric exercise (group A) and 12 whose pressure gradient decreased or increased less than 4 mm Hg (group B). The ejection fraction remained unchanged and the peak systolic pressure/end-systolic volume ratio increased during isometric exercise in group A (p less than 0.001). In group B, the ejection fraction decreased (p less than 0.001) and the peak systolic pressure/end-systolic volume ratio remained unchanged. In the total group, a positive correlation existed between the change in mean mitral valve pressure gradient during isometric exercise and the changes in measures of left ventricular function during exercise. The patients in group A had a significant improvement in both symptoms and in exercise tolerance as determined by symptom-limited bicycle ergometry after surgery. The patients in group B showed minimal or no symptomatic improvement and their exercise tolerance did not improve. The change in mitral valve pressure gradient during isometric exercise appears to reflect the left ventricular response to exercise.
Authors:
H V Huikuri; J T Takkunen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of cardiology     Volume:  52     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1983 Sep 
Date Detail:
Created Date:  1983-10-08     Completed Date:  1983-10-08     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  540-3     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Exercise Test
Female
Heart Catheterization
Humans
Isometric Contraction*
Male
Middle Aged
Mitral Valve / physiology
Mitral Valve Stenosis / diagnosis*,  physiopathology
Physical Exertion*
Postoperative Care
Preoperative Care
Pressure
Stroke Volume

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


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