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document
[ Validity of cardiotocography in the detection of umbilical cord complications ] . OBJECTIVE The purpose of this study was to investigate the validity of cardiotocography for the detection of cord complications . MATERIAL AND METHODS A low-risk population of 4196 cases was selected in which cord complications have been recognized in 34.3 % . Cases with cord complications and controls were paired by parity , gestational age , maternal age and mode of delivery . 25 pairs were randomly selected . 50 tracings were presented twice to 4 obstetricians in a double-blind manner . As parameters for the determination of the validity of fetal monitoring the reliability , positive ( ppv ) and negative predictive value ( npv ) , sensitivity and specificity were used . Inter- and intra-observer variability were also examined . RESULTS Reliability 52 % , ppv 52 % , npv 52 % , sensitivity 46 % , specificity 58 % . Interobserver variability : All 4 obstetricians agreed in 47 of 100 evaluations . The level of agreement was higher in the controls ( 63 % ) than in the cord complication group ( 56 % ) . The intraobserver variability was 25 % . CONCLUSIONS Cardiotocography is not useful for the detection of cord complications . The range of possibilities has not been exploited yet , even for the evaluation of the fetal state .
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Intervention_Physical
cardiotocography
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Intervention_Physical
cardiotocography
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Intervention_Physical
Cardiotocography
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Outcome_Physical
umbilical cord complications
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Outcome_Physical
cord complications .
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Outcome_Other
Reliability
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Outcome_Other
sensitivity
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Outcome_Other
specificity
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Outcome_Other
level of agreement
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Outcome_Other
intraobserver variability
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Outcome_Physical
detection of cord complications .
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Participant_Condition
umbilical cord complications ]
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Participant_Condition
Cases with cord complications and controls were paired