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Serial change in myocardial tissue Doppler imaging from fetus to neonate.
MedLine Citation:
PMID:  23707048     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Our goal was to evaluate the serial change in myocardial performance from fetus to neonate using tissue Doppler imaging (TDI). METHOD AND RESULTS: There were 37 term infants in the present study. The TDI sensor was placed at the level of the lateral mitral annulus (M-TDI), inter-ventricular septum (IVS-TDI) and the lateral tricuspid annulus (T-TDI). We measured TDI parameters from fetus to neonate. On univariate analysis, E' (cm/s), A' (cm/s), and S' (cm/s) of three ventricular walls of TDI parameters excluding E' IVS-TDI significantly decreased during the transition from fetal to neonatal circulation. E'/A' ratio, E/E' ratio and myocardial performance index (MPI) of three ventricular walls of TDI parameters excluding T-TDI MPI significantly increased during the transition from fetal to neonatal circulation. When multiple linear regression analysis with a step-wise procedure during the transition from fetus to neonate for TDI parameters was applied to variables, significant differences were noted for predicting decreases in M-TDI S' (6.55 to 3.97, p<0.001) and IVS-TDI A', (6.69 to 4.69, p<0.001), and increases in IVS-TDI E'/A' ratio (0.77 to 1.02, p<0.001) and IVS-TDI E/E' ratio (8.25 to 13.65, p<0.001). CONCLUSION: In conclusion, we found that the myocardial performances of both ventricles decreased during the transition from fetus to neonate using TDI parameters. In particular, left ventricular systolic performance was affected more than when fetal circulation changed to neonate circulation. Our findings suggest that serial change in TDI can give new information to estimate myocardial performance of the neonate.
Authors:
Satoru Iwashima; Katuyuki Sekii; Takamichi Ishikawa; Hiroaki Itou
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-5-23
Journal Detail:
Title:  Early human development     Volume:  -     ISSN:  1872-6232     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-5-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan. Electronic address: iwashima@hama-med.ac.jp.
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