Comparing fetal pulse oximetry with scalp pH.
作者信息
Johnson N, McNamara H, Montague I, Aumeerally Z, Lilford R J
机构信息
Department of Obstetrics and Gynaecology, Leeds General Infirmary, England, U.K.
出版信息
J Reprod Med. 1995 Oct;40(10):717-20.
OBJECTIVE
To determine whether pulse oximetry has the potential to replace scalp blood pH sampling in infants with abnormal cardiotocographs.
STUDY DESIGN
The average scalp oximetry reading in labor recorded with an experimental N400 system was compared with fetal scalp blood pH.
RESULTS
The average oximetry readings were unrelated to the pH of aerobically sampled fetal scalp blood. There was no subgroup of acidemic infants with a low oximetry reading.
CONCLUSION
Pulse oximetry readings with present technology do not reflect scalp pH. The equipment is improving, but at this time pulse oximetry is not a simple alternative for scalp capillary blood sampling.
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