Document Detail


Characteristics of mitral and tricuspid annular velocities determined by pulsed wave Doppler tissue imaging in healthy subjects.
MedLine Citation:
PMID:  10441217     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Assessment of myocardial velocities by Doppler tissue imaging is gaining in importance. However, generally accepted reference values are still missing. In this study we examined 62 consecutive healthy subjects (mean age 46, range 22-82 years) by pulsed wave Doppler tissue imaging to characterize the systolic and diastolic velocity profiles of the left and right ventricles. The subjects were divided into 3 different age-groups: group I, younger than 40 years; group II, 40 to 59 years; and group III, 60 years and older. Recordings were made along the long axis in the apical 4- and 2-chamber views by using 4 sites (septal, anterior, lateral, and inferior) at the mitral annulus and 1 site at the tricuspid annulus. Systolic mitral annular velocity (10.3 +/- 1.4 cm/s) correlated strongly with global left ventricular function determined by M-mode echocardiographic mitral annular displacement (r = 0.70, P <.001). The systolic velocity was significantly lower in group III than in group I (9.6 vs 10.8 cm/s, P <.01). A relatively weak, but significant, correlation was found between systolic velocity and the age of the subjects (r = -0.43, P <.001). Mitral annular early diastolic velocity was also lower in group III compared with group I (11.3 vs 17.7 cm/s, P <.001), with a strong correlation with age (r = -0.81, P <.001) and other conventional Doppler diastolic parameters. Both the systolic and early diastolic mitral annular velocities at the septum were lower than at other left ventricular sites. Tricuspid annular systolic velocity (15.2 +/- 1.9 cm/s) was higher than mitral annular systolic velocity (P <.001). Unlike mitral annular velocity, systolic tricuspid annular velocity was not correlated with age. However, the diastolic tricuspid annular velocities correlated well with transtricuspid Doppler diastolic parameters. The method of recording the annular velocities was feasible in all subjects, simple and highly reproducible.
Authors:
M Alam; J Wardell; E Andersson; B A Samad; R Nordlander
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  12     ISSN:  0894-7317     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-09-08     Completed Date:  1999-09-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  618-28     Citation Subset:  IM    
Affiliation:
Cardiology Section, Department of Medicine, Karolinska Institute at South Hospital, Stockholm, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Blood Flow Velocity*
Diastole
Echocardiography, Doppler, Pulsed*
Female
Humans
Male
Middle Aged
Mitral Valve / physiology,  ultrasonography*
Reference Values
Systole
Tricuspid Valve / physiology,  ultrasonography*
Ventricular Function, Left

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


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