Prediction of acidemia at birth by Doppler assessment of fetal cerebral transverse sinus in pregnancies with placental insufficiency

Abstract

Objectives To evaluate the prediction of acidemia at birth using cerebral transverse sinus (CTS) Results The S, D and A peak velocities and the S/ ConclusionsThe PIV and the (S − A)/S ratio of the CTS were good predictors of acidemia at birth in this highrisk population with placental insufficiency.

Fetal growth restriction: current knowledge to the general Obs/Gyn

“…The PI to predict acidemia was 0.76. Another method to predict fetal acidemia is evaluation of the Doppler velocimetry of the transverse sinus through its PI [71].…”

Ductus venosus versus cerebral transverse sinus Doppler velocimetry for predicting acidemia at birth in pregnancies complicated by placental insufficiency

“…The sensitivity, specificity, the positive and negative predictive values (NPV), false positives and false negatives, the accuracy, and positive and negative likelihood ratios of the various venous parameters in the prediction of acidemia were calculated. The cutoff points were considered to be those defined in previous studies by the same authors …”

“…The cutoff points were considered to be those defined in previous studies by the same authors. 14,20 The McNemar test was used to compare the sensitivity, the specificity, and the accuracy of the parameters that showed good predictors in the prediction of acidemia at birth.…”

“…Barbosa et al . found the CTS Doppler to be an effective predictor in pregnancies complicated by placental insufficiency . However, no study has compared the predictive value of Doppler examination of these vessels or other tests of fetal well‐being.…”

Reproduzierbarkeit Doppler-sonografischer Messungen der fetalen Zerebralvenen: Eine Studie am Sinus transversus

“…Blutflusses im arteriellen Schenkel des Gehirns bei chronischer Verschlechterung der intrauterinen Versorgung (brain sparing) und bei verschiedenen fetalen Erkrankungen gut erforscht ist, bleibt unser Wissen über die Physiologie und Pathophysiologie der Hämodynamik in den zerebralen Venen jedoch sehr gering. Im letzten Jahrzehnt wurden nur eine Handvoll Studien über dieses Thema publiziert [7][8][9][10][11][12]. Wir verfügen über wenig unumstrittene Informationen über das Ausmaß und den Zeitpunkt signifikanter Änderungen im zerebralen venösen Kreislauf unter sich verschlechternden fetalen Bedingungen.…”