Document Detail

Evaluation of left ventricular diastolic function when mitral E and A waves are completely fused: role of assessing mitral annulus velocity.
MedLine Citation:
PMID:  10070184     Owner:  NLM     Status:  MEDLINE    
Mitral inflow parameters have been used most widely in the evaluation of left ventricular (LV) diastolic function. However, when the mitral E and A waves are completely fused, mitral inflow parameters cannot provide information about the LV diastolic function. LV filling pressure, mitral inflow, mitral annulus velocity, and tau (tau) were measured in 59 patients with sinus rhythm when mitral E and A waves were completely fused with right atrial pacing. When mitral E and A waves were completely fused, tau correlated with the peak fused mitral annulus velocity (r = -0.60, P <.001), and peak fused mitral annulus velocity of less than 12.5 cm/s best discriminated prolonged (>/=50 ms) from normal tau, with a sensitivity of 78% and specificity of 69%. The peak fused mitral inflow velocity to peak fused mitral annulus velocity ratio correlated with LV filling pressure (r = 0.62, P <.001). A ratio of at least 8, could predict elevated LV filling pressure (>/=15 mm Hg) with a sensitivity of 65% and specificity of 74%. In conclusion, even when mitral E and A waves are completely fused, mitral annulus velocity can be used in the evaluation of LV diastolic function.
D W Sohn; Y J Kim; H C Kim; H G Chun; Y B Park; Y S Choi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
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 Mar 
Date Detail:
Created Date:  1999-03-24     Completed Date:  1999-03-24     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  203-8     Citation Subset:  IM    
Heart Research Institute and Division of Cardiology, Seoul, Korea.
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MeSH Terms
Cardiac Pacing, Artificial
Diastole / physiology*
Evaluation Studies as Topic
Heart Catheterization
Mitral Valve / ultrasonography*
Ventricular Function, Left*
Ventricular Pressure

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