Ultrasound measurement of fetal blood flow in predicting fetal outcome
| Autor: | Karel Marsal, Jan Laurin, Per Håkan Persson, Göran Lingman |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
medicine.medical_specialty
Fetus Pregnancy Prenatal Diagnosis Internal medicine medicine.artery medicine Fetal distress Humans Vein Ultrasonography Fetal Growth Retardation Receiver operating characteristic Obstetrics business.industry Obstetrics and Gynecology Umbilical artery Blood flow medicine.disease medicine.anatomical_structure embryonic structures Circulatory system Cardiology Female Apgar score business Blood Flow Velocity |
| Zdroj: | BJOG: An International Journal of Obstetrics and Gynaecology. 94:940-948 |
| ISSN: | 1471-0528 1470-0328 |
| DOI: | 10.1111/j.1471-0528.1987.tb02267.x |
| Popis: | The efficacy of fetal blood flow assessment in predicting fetal outcome was evaluated in 159 pregnancies suspected of intrauterine growth retardation (IUGR). Blood flow in the fetal aorta and umbilical vein was measured with imaging and pulsed Doppler ultrasound. Volume blood flow values and variables describing the waveform of the maximum aortic blood velocity were checked for relations to subsequent fetal outcome. A new semi-quantitative velocity waveform variable, blood flow class (BFC), was designed and tested. The occurrence of IUGR, imminent fetal distress, a low Apgar score at 1 and 5 min, and a low pH in the umbilical artery and vein were adopted to characterize fetal outcome. Receiver operating characteristic curves were used to demonstrate the sensitivity and false positive rate, and the Cohen's Kappa index was used to compare the predictive capacity of the various blood flow variables. BFC, describing the blood velocity waveform with emphasis on its end-diastolic part, was found to be the most powerful marker of imminent fetal asphyxia (Kappa = 0.66) and of intrauterine growth retardation (Kappa = 0.48). |
| Databáze: | OpenAIRE |
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