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- W2094246162 abstract "Myocardial performance is diminished in persistent SVT and will lead to hydrops fetalis (HDF). This study sought to determine which methods of fetal echocardiography are best for evaluating treatment and outcome in these fetuses. Methods: Ten infants with HDF due to SVT were included in this study. No fetus has structural heart disease. Serial cardiovascular function was estimated from CC/TC ratio, left ventricular shortening fraction, tricuspid E and A velocities and E/A ratio, mitral E, A velocities and E/A ratio and Doppler flow patterns in the free loop of the umbilical cord, MCA, ductus arteriosus and ductus venosus (DV) as well as maximal velocities and time velocity integrals into the ascending aorta and main pulmonary artery. The Tei index was calculated as the sum of the isovolumetric contraction time (ICT) and the isovolumetric relaxation time (IRT) divided by the ejection time using the ‘‘clicks’’ method. These parameters were compared to age matched normal fetuses from our data base. Changes in the gross measurements of third space effusions were considered demonstrable of improvement of fetal cardiovascular status. Results: The most sensitive indicator of change in fetal function was the Tei index followed by CC/TC ratio. Tei index is the first cardiovascular parameter which gets normalised in these fetuses responding to the treatment. There was no significant change over time with E/A ratios, LV shortening fraction or peripheral arterial Doppler values. DV A wave reversal normalized with cessation of SVT with normal PI values. DV size went from greater than the 95% to normal with cessation of SVT. Conclusions: The Tei index easily performed from 14 weeks through term. It is a useful and likely the most sensitive method of evaluating global myocardial performance in followup of fetuses with HDF especially due to SVT." @default.
- W2094246162 created "2016-06-24" @default.
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- W2094246162 date "2008-08-01" @default.
- W2094246162 modified "2023-09-26" @default.
- W2094246162 title "OP21.09: Global myocardial performance index (Tei index) is a sensitive parameter of cardiovascular dysfunction in fetuses with supraventicular tachycardia (SVT)" @default.
- W2094246162 doi "https://doi.org/10.1002/uog.5850" @default.
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