The Fetal Biophysical Profile and Its Predictive Value

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Abstract
Six fetal biophysical variables, the nonstress test, fetal movements, fetal breathing movements, fetal tone, amniotic fluid volume and placental grading (biophysical profile), were assessed in 150 high-risk pregnancies during a 30-min observation period. The predictive value of the nonstress test alone, biophysical scoring and contraction stress test alone in the identification of the healthy fetus as well as the fetus in jeopardy are discussed. The relationships between individual variables and combinations of variables to the outcome of pregnancy, as reflected by abnormal intrapartum fetal heart rate patterns, meconium during labor, fetal distress and perinatal mortality rate were determined. The biophysical profile of all hypoxic fetues was analyzed. The biophysical profile is more accurate in the identification of the hypoxic fetus than any other single method; therefore, a new protocol including the biophysical profile for the antepartum fetal evaluation is presented.

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