| Left ventricular systolic function of newborns with asphyxia evaluated by tissue Doppler imaging. | |
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MedLine Citation:
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PMID: 19340476 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of the study was to evaluate the left ventricular systolic function of newborns with asphyxia using tissue Doppler imaging (TDI). Newborns with a history of asphyxia were divided into severe and mild groups based on their Apgar scores; normal newborns without asphyxia served as the controls. Left ventricular ejection fraction (LVEF), fraction shortening (FS), and stroke volume (SV) were measured by M-mode echocardiography at 24, 48, and 72 h after birth. The peak systolic velocity of the anterior mitral valve leaflet (Sm wave) was measured with TDI. Cardiac troponin I (CTnI) was measured. The results revealed that the LVEF and FS of the severe asphyxia group at 24 h were significantly lower than those at later time points (P < 0.01). These parameters were also significantly lower than those of the mild and control groups (P < 0.01). SV was not significantly different among the three groups. Sm wave of asphyxia groups was significantly lower than that of control group (P < 0.001). In the severe asphyxia group, Sm wave at 24 h was significantly lower than that at 48 or 72 h (P < 0.001). CTnI values of the severe asphyxia group were remarkably higher than those of the other two groups (P < 0.01). The findings of this study indicate decreased left ventricular systolic function of newborn children after asphyxia. Sm by TDI is a more sensitive indicator of left ventricular systolic function than LVEF, FS, or SV by M-mode echocardiography. |
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Authors:
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Yi Wei; JianXin Xu; Ting Xu; Jing Fan; ShaoYing Tao |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2009-04-02 |
Journal Detail:
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Title: Pediatric cardiology Volume: 30 ISSN: 1432-1971 ISO Abbreviation: Pediatr Cardiol Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2009-07-27 Completed Date: 2009-11-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8003849 Medline TA: Pediatr Cardiol Country: United States |
Other Details:
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Languages: eng Pagination: 741-6 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, Jin Hua Municipal Central Hospital, Jin Hua, Zhejiang 321000, China. jhwy3993@sina.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Asphyxia Neonatorum
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blood,
physiopathology*,
ultrasonography Echocardiography, Doppler, Color / methods* Electrocardiography Female Follow-Up Studies Heart Ventricles / physiopathology, ultrasonography* Humans Infant, Newborn Male Myocardium / metabolism Prognosis Retrospective Studies Severity of Illness Index Stroke Volume / physiology* Systole Troponin I / blood Ventricular Function, Left / physiology* |
| Chemical | |
Reg. No./Substance:
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0/Troponin I |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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