Document Detail


The electrocardiographic response to exercise in 44 patients with leaflet prolapse.
MedLine Citation:
PMID:  710493     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The response to electrocardiographically monitored submaximal exercise stress testing has been studied in 44 patients with mitral leaflet prolapse (MLP). With exercise, ventricular premature contractions occurred in 7, ventricular tachycardia in 1, and atrial fibrillation in 1. Exercise was terminated short of target heart rate in 18 patients, because of chest pain (5), fatigue (7), ventricular arrhythmia (4), dizziness (1) or ST segment depression (1). 23 patients developed postexercise ST segment abnormalities, of whom 5 had 'ischemic' patterns and arteriographically proven coronary artery disease (CAD); among the 18 others, the ST segments were depressed and minimally downsloping in 2, slowly ascending from depressed J point in 3, horizontal for greater than or equal to 80 msec with J depression of less than 1 mm in 12, and cupped in 1. The incidence of arrhythmias provoked by submaximal exercise stress testing in patients with MLP was lower than suggested in previous reports. In all 5 cases where MLP and CAD coexisted, the classical 'ischemic' electrocardiographic response to exercise was not obscured. Even in the absence of CAD, postexercise ST segment abnormalities were common with MLP (18/39 = 46%) and differed from the progressively resolving ST segment deviation characteristic of CAD with angina. Exercise testing can safely be recommended, subject to standard contraindications, in patients with MLP and yields useful information.
Authors:
A D Malcolm; S P Ahuja
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of cardiology     Volume:  8     ISSN:  0301-4711     ISO Abbreviation:  Eur J Cardiol     Publication Date:  1978 Oct 
Date Detail:
Created Date:  1979-01-24     Completed Date:  1979-01-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0404054     Medline TA:  Eur J Cardiol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  359-70     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Electrocardiography*
Exercise Test
Female
Heart Rate
Humans
Male
Middle Aged
Mitral Valve Prolapse / physiopathology*

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


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