Intrauterine growth restriction (IUGR) is one of the major contributors to perinatal mortality and morbidity and is characterized by complex hemodynamic changes involving placental and fetal arterial, cardiac and venous circulations .However, the temporal sequence of these modifications in relation to other hemodynamic changes of the fetal arterial and venous circulations is unknown. The aim of this study was to evaluate cardiac function and other hemodynamic changes in a group of fetuses with IUGR and clinical impact on perinatal outcome .
Study Type
OBSERVATIONAL
Enrollment
534
Advanced Fetal Cair Unit - Assiut University
Asyut, Egypt
Myocardial performance index
Ratio between isovolumetric time to ejection time
Time frame: 5 minutes
Aortic isthmus flow index
Aortic isthmus flow index = Ratio of (systolic velocity time integral+diastolic velocity time integral) / systolic velocity time integral
Time frame: 5 minutes
Cerebroplacental ratio
cerebroplacental ratio = Rtio middle cerebral artery pulsatility index / umbilical artery pulsatility index
Time frame: 5 minutes
Preload Index in inferior vena cava
Preload Index in inferior vena cava = ratio of peak systolic velocity in atrial contraction /peak systolic velocity ventricular systole
Time frame: 5 minutes
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