| Characterization of ventricular myocardial performance in the fetus by tissue Doppler imaging. | |
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MedLine Citation:
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PMID: 19276611 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Clinically useful indices of fetal cardiac function have not been fully delineated for tissue Doppler imaging (TDI). METHODS AND RESULTS: In the present study, 56 pregnancies between the 17(th) and 38(th) weeks of gestation included 38 normal fetuses, 6 cases of hydrops fetalis (HF), and 12 of intrauterine growth retardation (IUGR). Peak velocity in early diastole (E) was measured by pulsed-wave Doppler and the peak annular velocities in systole (Sa) and early diastole (Ea) were measured by TDI. The ratio between flow velocity and annular velocity in early diastole (E/Ea) and the ratio of the Sa of right ventricle to that of the left ventricle (RVSa/LVSa) were estimated. In all fetuses with HF, LVSa was <2 cm/s and LVE/Ea was >13. RVSa/LVSa in the HF group was significantly higher than that in the normal group, and RVSa/LVSa in the IUGR group was significantly lower than that in the normal group. CONCLUSIONS: A combination of low LVSa and high LVE/Ea shows reduced global myocardial performance of the LV, and would be one of the useful indices for quantitative assessment in high-risk pregnancies. Changes in the RVSa/LVSa ratio may reflect afterload changes in both ventricles and compensatory cardiovascular mechanisms occurring during the process of placental insufficiency and heart failure. |
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Authors:
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Sayaka Watanabe; Ikuo Hashimoto; Kazuyoshi Saito; Kazuhiro Watanabe; Keiichi Hirono; Keiichiro Uese; Fukiko Ichida; Shigeru Saito; Toshio Miyawaki; Petra Niemann; David J Sahn |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-03-11 |
Journal Detail:
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Title: Circulation journal : official journal of the Japanese Circulation Society Volume: 73 ISSN: 1346-9843 ISO Abbreviation: Circ. J. Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-24 Completed Date: 2009-08-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137683 Medline TA: Circ J Country: Japan |
Other Details:
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Languages: eng Pagination: 943-7 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, School of Medicine, University of Toyama, Toyama, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Birth Weight Case-Control Studies Echocardiography, Doppler, Pulsed* Female Fetal Growth Retardation / physiopathology, ultrasonography* Fetal Heart / physiopathology, ultrasonography* Gestational Age Heart Rate, Fetal Heart Ventricles / physiopathology, ultrasonography Humans Hydrops Fetalis / physiopathology, ultrasonography* Myocardial Contraction* Predictive Value of Tests Pregnancy Ultrasonography, Prenatal / methods* Ventricular Function, Left* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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