Normal values of left and right ventricular function measured by M-mode, pulsed doppler and Doppler tissue imaging in healthy term neonates during a 1-year period

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dc.contributor.authorAlp, Hayrullah
dc.contributor.authorKaraarslan, Sevim
dc.contributor.authorBaysal, Tamer
dc.contributor.authorCimen, Derya
dc.contributor.authorOrs, Rahmi
dc.contributor.authorOran, Bulent
dc.date.accessioned2024-02-23T14:02:43Z
dc.date.available2024-02-23T14:02:43Z
dc.date.issued2012
dc.departmentNEÜen_US
dc.description.abstractBackground: The measurements of left and right ventricular functions change after birth due to the influence of several hemodynamic changes upon the immature myocardium. Aim: The aim of this study was to investigate the changes in left (LV) and right ventricular (RV) functions of healthy term newborns using conventional and Doppler echocardiography during a 1-year period. Subjects and methods: Fifty healthy term newborns were examined prospectively on the first day, 3-4, 6-7, 9-10 and 11-12 months of their lives by M-mode, pulsed Doppler (PD) and Doppler tissue imaging techniques (DTI). PD velocities were obtained from mitral and tricuspid valves while DTI velocities were obtained from the lateral annuluses of atrioventricular valves. Results: EF and FS did not change significantly by time. Early (E) flow velocity and early myocardial (Em) velocity were higher than late (A) flow velocity and atrial systolic (Am) velocity for LV, while A and Am velocities were higher than E and Em velocities for RV, respectively during the study period. E. A, Em, Am, Sm velocities and Em/Am ratios increased while E/Em ratios decreased significantly by time (P<0.05) for both ventricle. However, E/A ratios of LV and RV did not change significantly by time. Myocardial performance index (MPI), obtained by PD for RV and by DTI for LV, decreased significantly by time (P<0.05) and these DTI values were higher than PD values during the study period. Conclusions: Due to hemodynamic and maturation change of myocardium PD and DTI velocity changes took place during the first year of life which reflects differences in ventricular adaptation. (C) 2012 Elsevier Ireland Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.earlhumdev.2012.06.006
dc.identifier.endpage859en_US
dc.identifier.issn0378-3782
dc.identifier.issn1872-6232
dc.identifier.issue11en_US
dc.identifier.pmid22805997en_US
dc.identifier.scopus2-s2.0-84866851787en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage853en_US
dc.identifier.urihttps://doi.org/10.1016/j.earlhumdev.2012.06.006
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11823
dc.identifier.volume88en_US
dc.identifier.wosWOS:000309800800002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Ireland Ltden_US
dc.relation.ispartofEarly Human Developmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPulsed Doppleren_US
dc.subjectDoppler Tissue Imagingen_US
dc.subjectEchocardiographyen_US
dc.subjectHealthy Term Newbornen_US
dc.subjectMyocardial Performance Indexen_US
dc.titleNormal values of left and right ventricular function measured by M-mode, pulsed doppler and Doppler tissue imaging in healthy term neonates during a 1-year perioden_US
dc.typeArticleen_US

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