Document Detail


Single-beat differentiation among left ventricular filling patterns by pulsed wave Doppler echocardiography.
MedLine Citation:
PMID:  16500489     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We sought to evaluate whether the combination of phantom E wave peak velocity (Ep) to phantom A wave peak velocity (Ap) ratio at the apex (Ep/Ap) and pulsed wave Doppler left ventricular (LV) inflow propagation velocity (LVIPVpw) or the combination of Ep/Ap and Ep/LVIPVpw obtained from the same heartbeat can effectively differentiate LV filling patterns. The study population included 132 patients. They were classified into normal, abnormal relaxation, and pseudonormal/restrictive groups according to the ratio of early to late transmittal filling wave peak velocity (E/A), color M-mode Doppler LV inflow propagation velocity, and E/color M-mode Doppler LV inflow propagation velocity. Standard Doppler parameters of LV filling such as E, A, E/A, and E-wave deceleration time had a bimodal distribution, but LVIPVpw decreased and Ep/LVIPVpw increased progressively with worsening of LV diastolic function (both P < .001). The sensitivity and specificity of combination of Ep/Ap 1 or greater and LVIPVpw less than 77 cm/s or of Ep/Ap 1 or greater and Ep/LVIPVpw greater than 0.87 from the same heartbeat in identifying the pseudonormal/restrictive LV filling pattern were 81% and 95% or 81% and 93%, respectively. In conclusion, with application of range ambiguity phenomenon, it is simple and feasible to differentiate LV filling patterns on the same cardiac cycle by pulsed wave Doppler echocardiography.
Authors:
Ho-Ming Su; Tsung-Hsien Lin; Wen-Chol Voon; Kun-Tai Lee; Chih-Sheng Chu; Hsueh-Wei Yen; Wen-Ter Lai; Sheng-Hsiung Sheu
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  19     ISSN:  1097-6795     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-02-27     Completed Date:  2006-05-02     Revised Date:  2007-11-02    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  274-9     Citation Subset:  IM    
Affiliation:
Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University, Chung-Ho Memorial Hospital, Kaohsiung, Taiwan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Flow Velocity
Echocardiography, Doppler, Pulsed / methods*
Female
Heart Rate*
Humans
Image Interpretation, Computer-Assisted / methods*
Male
Middle Aged
Reproducibility of Results
Sensitivity and Specificity
Stroke Volume*
Ventricular Dysfunction, Left / ultrasonography*

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


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