Document Detail

Left ventricular performance and ultrasonic myocardial quantitative reflectivity in endurance senior athletes: an echocardiographic study.
MedLine Citation:
PMID:  8458355     Owner:  NLM     Status:  MEDLINE    
Young elite athletes often show left ventricular hypertrophy, but normal values of quantitatively evaluated myocardial wall reflectivity. The aim of this study is to assess the acoustic pattern of ventricular wall reflectivity, as well as of systolic and diastolic function, in older endurance runners with increased left ventricular mass. For this purpose, 12 elite, senior isotonic athletes in full training and 11 normal, age-matched controls with sedentary life styles were studied. The following parameters were measured with a commercially available 2D echo-Doppler machine: end-diastolic diameter, diastolic septum thickness, left ventricular mass index, ejection fraction (by Teicholtz rule); peak E, peak A, E/A ratio, acceleration and deceleration time of mitral inflow velocity and isovolumic relaxation time. On-line radio frequency analysis was also performed to obtain quantitative operator-independent measurements of the integrated backscatter signal of the ventricular septum and the posterior wall. The integrated values of the radiofrequency signals were normalized for the pericardial interface and expressed in percent (% 2D-IB). In spite of the greater left ventricular mass in athletes versus normal controls (319 +/- 81 vs 225 +/- 63 g.m-2, P < 0.0005), there were no significant intergroup differences as regards end-diastolic diameter (50.7 +/- 5.1 vs 48.1 +/- 5.2 mm, P = ns), ejection fraction (75.5 +/- 9.3 vs 71.8 +/- 9.1%, P = ns), and 2D-IB of septum (22.2 +/- 6.9 vs 22.4 +/- 7.0, P = ns) and posterior wall (12.5 +/- 5.6 vs 13.1 +/- 2.8, P = ns).(ABSTRACT TRUNCATED AT 250 WORDS)
V Di Bello; F Lattanzi; E Picano; L Talarico; M T Caputo; C Di Muro; G Santoro; M Lunardi; A Distante; C Giusti
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European heart journal     Volume:  14     ISSN:  0195-668X     ISO Abbreviation:  Eur. Heart J.     Publication Date:  1993 Mar 
Date Detail:
Created Date:  1993-04-29     Completed Date:  1993-04-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8006263     Medline TA:  Eur Heart J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  358-63     Citation Subset:  IM    
2nd Institute of Clinical Medicine, University of Pisa, Italy.
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MeSH Terms
Aging / physiology
Case-Control Studies
Echocardiography, Doppler
Heart Septum / anatomy & histology,  ultrasonography
Heart Ventricles / anatomy & histology*,  ultrasonography
Middle Aged
Myocardial Contraction
Physical Endurance / physiology*
Physical Fitness
Ventricular Function
Ventricular Function, Left / physiology*

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