Document Detail


Effects of regional systolic asynchrony on left ventricular global diastolic function in patients with coronary artery disease.
MedLine Citation:
PMID:  1312099     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Patients with coronary artery disease often have impaired left ventricular diastolic filling despite normal global systolic function. The influence of regional systolic asynchrony on diastolic function was assessed by radionuclide angiography in 60 patients with coronary artery disease and normal ejection fraction at rest: group 1 (n = 30) with normal wall motion at rest and group 2 (n = 30) with abnormal wall motion. Data were compared with those obtained from 19 normal volunteers. Age, heart rate, ejection fraction and echocardiographic end-diastolic dimension did not differ among the three groups. Peak filling rate in group 1 and group 2 was similar (2.5 +/- 0.5 and 2.3 +/- 0.6 end-diastolic counts/s, respectively) and significantly lower than that in the normal subjects (2.8 +/- 0.7 end-diastolic counts/s; p less than 0.01 vs. group 2, p less than 0.05 vs group 1). Time to peak filling rate was prolonged in group 2 (184 +/- 27 ms) compared with that in normal subjects (162 +/- 19 ms; p less than 0.01) and group 1 (172 +/- 15 ms; p less than 0.05). Left ventricular end-diastolic pressure was significantly higher in group 2 than in group 1 (14 +/- 7 vs. 10 +/- 5 mm Hg, respectively; p less than 0.05). Asynchrony was assessed by sector analysis of the radionuclide left ventricular region of interest. Diastolic asynchrony was similar in the two patient groups (30 +/- 23 ms in group 2, 26 +/- 16 ms in group 1) and was higher in both groups than in the normal subjects (16 +/- 8 ms; p less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
P Perrone-Filardi; S L Bacharach; V Dilsizian; R O Bonow
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  19     ISSN:  0735-1097     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  1992 Mar 
Date Detail:
Created Date:  1992-04-10     Completed Date:  1992-04-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  739-44     Citation Subset:  AIM; IM    
Affiliation:
Cardiology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland.
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MeSH Terms
Descriptor/Qualifier:
Analysis of Variance
Coronary Angiography
Coronary Disease / epidemiology,  physiopathology*,  radionuclide imaging
Erythrocytes
Female
Gated Blood-Pool Imaging
Humans
Male
Middle Aged
Myocardial Contraction / physiology*
Sodium Pertechnetate Tc 99m / diagnostic use
Stroke Volume / physiology
Ventricular Function, Left / physiology*
Chemical
Reg. No./Substance:
23288-60-0/Sodium Pertechnetate Tc 99m

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


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