Clinical Investigation

Qualitative and Quantitative Doppler Analysis of Umbilical Artery Flow Velocity For Prediction of Neonatal Thrombocytopenia

  • Ragip Atakan Al
  • Serdar Yalvaç
  • Cem Baykal
  • Ömer Kandemir
  • Erol Akkök
  • Ismail Dölen

Turk J Obstet Gynecol 2007;4(2):91-95

Objective: To compare quantitative and qualitative doppler analysis of umbilical artery for prediction of neonatal thrombocytopenia in fetuses with intrauterine growth restriction. Design: Retrospective analysis Setting: Hospital Patients: Between 2002-2004, all pregnant women with normal fetal anatomy, estimated fetal weight below 3rd percentile, umbilical artery pulsatility index > 2 SD, live fetus and neonatal blood results available Interventions: None Main outcome measures: Neonatal thrombocytopenia Results: Umbilical artery absent or reversed end diastolic flow pattern has a sensitivity of %90 and a false positive ratio of % 27.3 for prediction neonatal thrombocytopenia (area under curve.817 %95 [CI.736-.882], p Conclusions: Quantitative analysis of umbilical artery flow pattern does not improve prediction of neonatal thrombocytopenia compared qualitative analysis of umbilical artery flow pattern.

Keywords: Neonatal thrombocytopenia, umbilical artery doppler, fetal growth restriction