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The predictive value of a nonstress test taken 24 h before delivery in high‐risk pregnancies
Author(s) -
Salamalekis E.,
Vitoratos N.,
Loghis C.,
Mortakis A.,
Zourlas P.A.
Publication year - 1994
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1016/0020-7292(94)90116-3
Subject(s) - medicine , nonstress test , predictive value , apgar score , obstetrics , fetal distress , population , predictive value of tests , pregnancy , gynecology , fetus , fetal heart rate , heart rate , environmental health , biology , blood pressure , genetics
OBJECTIVES: A series of 180 cases of high risk pregnancies were studied in order to assess if a nonstress test taken 24 h before delivery is of any prognostic significance. METHODS: To assess the predictability of the NST (reactive or nonreactive) in terms of fetal outcome, the following variables were taken into consideration: fetal distress during labor, low Apgar score (< 7) and perinatal mortality rate. RESULTS: A reactive test was found to be a good predictor of the healthy fetus (negative predictive value = 91.2%). Also, specificity of the test was found to be 85.4%. CONCLUSIONS: The nonreactive test could identify a population at risk but it was not helpful as a ‘stand alone’ modality in decision making, because of the low sensitivity and positive predictive value rates (40.9% and 28.1%, respectively).