Document Detail


Altered early left ventricular diastolic wall velocities in pulmonary hypertension: a tissue Doppler study.
MedLine Citation:
PMID:  19765074     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Left ventricular diastolic dysfunction (LVDD) is known to occur in severe chronic pulmonary hypertension (PH); however, the mechanism(s) remains unclear. METHODS: Tissue Doppler imaging (TDI) was used to track early (E) diastolic signals of basal and mid portions of the interventricular septum (IS) and LV free wall (LVFw) in 20 patients (60 +/- 8 years) with documented LVDD without PH and in 30 patients (60 +/- 11 years) with known chronic PH. All subjects were in normal sinus rhythm and had normal LV ejection fraction. RESULTS: PH patients had lower early (E) wave velocities in basal IS (-4.2 +/- 1.9 vs. -5.9 +/- 1.2 cm/sec; P < 0.001), distal IS (-2.6 +/- 2.6 vs. -4.2 +/- 1.1 cm/sec; P < 0.01), and basal LVFw (-5.2 +/- 1.7 vs. -6.5 +/- 1.2 cm/sec; P < 0.01) than patients with LVDD and no PH. Finally, worsening PH distorts the entire IS diastolic tracing resulting in asynchronous diastolic signals. CONCLUSIONS: The presence of PH not only decreases IS early (E) wave diastolic velocity generation but also distorts the entire pattern of IS diastolic relaxation when compared to patients with typical LVDD and no PH. Further studies are now needed to assess the full effect of PH on LV diastole and how this influences clinical outcomes.
Authors:
Angel L??pez-Candales; Raveen Bazaz; Kathy Edelman; Beth Gulyasy
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Publication Detail:
Type:  Journal Article     Date:  2009-09-18
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  26     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-25     Completed Date:  2010-02-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1159-66     Citation Subset:  IM    
Affiliation:
Cardiovascular Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15213-2582, USA. lopezcandalesa@upmc.edu
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MeSH Terms
Descriptor/Qualifier:
Elasticity Imaging Techniques*
Female
Humans
Hypertension, Pulmonary / complications*,  ultrasonography*
Male
Middle Aged
Reproducibility of Results
Sensitivity and Specificity
Ventricular Dysfunction, Left / etiology*,  ultrasonography*

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


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