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[Prognostic value of amniotic fluid index estimated during labor during chronic fetal acidosis]
1Oddziału Ginekologiczno-Połozniczego Szpitala im. Biernackiego, Mielcu.
There were performed measurements of AFI in 32 women during labour and they were referred to pH of neonatal umbilical vein. It was proved by significant statistic relation p = 0.034 (r = 0.375) between AFI and pH of umbilical vein blood. In anticipation of fetal acidosis with AFI < or = 5 cm with pH < or = 7.25 it was determined that: sensitivity 66.7%, specificity 58.6%, positive predictive value 14.3%, negative predictive value 94.4%, false positive 85.7%, false negative 5.6%, accuracy 59.4%. Obtained data do not differ from those given in literature. Measurements of AFI < or = 5 cm help in identification of the risk group (fetus in danger, of acidosis during labour) but due to low specificity and low positive predictive value (66.7% and 14.3% respectively). Clinical decisions should be made after consideration the result of the other tests of fetal well-being.
There were performed measurements of AFI in 32 women during labour and they were referred to pH of neonatal umbilical vein. It was proved by significant statistic relation p = 0.034 (r = 0.375) between AFI and pH of umbilical vein blood. In anticipation of fetal acidosis with AFI < or = 5 cm with pH < or = 7.25 it was determined that: sensitivity 66.7%, specificity 58.6%, positive predictive value 14.3%, negative predictive value 94.4%, false positive 85.7%, false negative 5.6%, accuracy 59.4%. Obtained data do not differ from those given in literature. Measurements of AFI < or = 5 cm help in identification of the risk group (fetus in danger, of acidosis during labour) but due to low specificity and low positive predictive value (66.7% and 14.3% respectively). Clinical decisions should be made after consideration the result of the other tests of fetal well-being.