Predictive agreement between the fetal arterial oxygen saturation and fetal scalp pH: results of the German multicenter study.

Abstract

To discuss and substantiate the 30% critical threshold of fetal arterial oxygen saturation and to complete the puzzle with low fetal arterial oxygen saturation and low scalp pH data, scalp samples have been performed while fetal arterial oxygen saturation registration during labor was in place and while the saturation was < or = 30%.