Die Mikroblutuntersuchung am Fetus

Transcutaneous PO2and cardiovascular observations in the sheep fetus following the reduction of uterine blood flow

“…The tcP0 2 -electrode, applied by HUCH and others (reviewed by HUCH et al, 1977 [4]) to the fetus during parturition seems to give such additional Information. That the P0 2 of the fetus falls during labor especially during the second stage is known since it was possible to analyze the blood from the fetal scalp [1,6,7]. The tcP0 2 recording has however evidenced that during contraction the P0 2 falls.…”

FIGO consensus guidelines on intrapartum fetal monitoring: Adjunctive technologies

“…In three studies conducted in the 1960s, scalp pH values were evaluated in a total of 180 women with normal CTG tracings [18][19][20]. During the first stage of labor the lowest reported values were between 7.18 and 7.21.…”