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Fetal distress changes the function of the autonomic nervous system. These changes are reflected in the fetal heart rate and can be quantified with power spectrum analysis of heart rate variability. The purpose of this study was to find out whether spectral components of fetal heart rate variability (FHRV) during labor are associated with fetal cord arterial base deficit values at birth. The association...
Postnatal changes in left ventricular diastolic filling and systolic cardiac performance were studied monthly by serial echocardiographic measurements from days 3-5 up to six months in 20 healthy full-term infants. The fractional shortening area (FSA=(left ventricular end-diastolic area-end-systolic area)/end-diastolic area) was assessed for systolic performance, and transmitral pulsed-wave Doppler...
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