Document Detail


Tricuspid annular velocity assessed by doppler tissue imaging as a marker of right ventricular involvement in the acute and late phase after a first ST elevation myocardial infarction.
MedLine Citation:
PMID:  19725845     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Right ventricular (RV) involvement in patients with ST elevation myocardial infarction (STEMI) is a clinically important problem. The aim of this study was to evaluate the use of tricuspid annular velocity assessed by Doppler tissue imaging (DTI) as a marker of RV involvement in patients with a first STEMI. METHODS: Seventy-one patients with a first STEMI were examined by echocardiography before discharge and after 6 months. The patients were compared to 31 healthy subjects (HS). The diagnosis of RV infarction was based on the presence of >or= 1 mm ST elevation in the right precordial ECG lead V4R. Tricuspid annular systolic and diastolic velocities using pulsed-wave DTI were recorded at the RV free wall. RESULTS: At day 1, tricuspid annular velocities were significantly reduced in patients with, compared to those without, ST elevation in V4R (11.1 vs. 13.7 cm/sec, 9.4 vs. 13.1 cm/sec and 14.1 vs. 15.9 cm/sec for systolic, early, and late diastolic velocities, respectively; P < 0.01). With a cutoff value for a tricuspid annular systolic velocity of 13 cm/sec, sensitivity and specificity for identifying patients with ST elevation in V4R were 89% and 71%, respectively. After 6 months, both tricuspid annular systolic and diastolic velocities in patients with RV infarction had increased significantly, but only tricuspid annular systolic velocity was still reduced compared to HS (12.3 vs. 14.7 cm/sec; P < 0.01). CONCLUSION: Tricuspid annular velocities assessed by DTI may be used as a marker of RV involvement in the acute and the late phase after a first STEMI.
Authors:
Nils Witt; Mahbubul Alam; Leif Svensson; Bassem A Samad
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-31
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  27     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-04-12     Completed Date:  2010-07-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  139-45     Citation Subset:  IM    
Affiliation:
Department of Cardiology, Karolinska Institute at South Hospital Södersjukhuset, Stockholm, Sweden. nils.witt@sodersjukhuset.se
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MeSH Terms
Descriptor/Qualifier:
Echocardiography, Doppler / methods*
Female
Humans
Image Enhancement / methods
Image Interpretation, Computer-Assisted / methods*
Male
Middle Aged
Myocardial Infarction / complications*,  ultrasonography*
Reproducibility of Results
Sensitivity and Specificity
Tricuspid Valve / ultrasonography*
Ventricular Dysfunction, Right / etiology*,  ultrasonography*

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


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