title: [Preliminary study of the use of fetal pulse oximetry during labor].
abstract: OBJECTIVE
  To assess continuous monitoring of fetal blood oxygen staturation (SpO2) during labour using a fetal pulse oxymeter.
  
  
  METHODS
  Preliminary results obtained with the Nellcor N-400 fetal pulse oxymeter at the Maternité Port-Royal-Baudelocque between November 1992 and November 1993 in cases of abnormal fetal heart rate are presented. We analyzed: the correlation between SpO2 during labour and cord vein pH as well as Apgar score, the correlation between changes in SpO2, expressed as a desaturation index, and cord vein pH as well as Apgar score. The negative predictive value of oxymetry was assessed.
  
  
  RESULTS
  We found a significant positive correlation between the last SpO2 measurement during labour and umbilical vein pH as well as 1 minute Apgar score. We observed a highly significant correlation between the index of desaturation and cord vein pH as well as 1 minute Apgar score. No neonatal pH below 7.20 was observed when SpO2 was > or = 40% during labour. The negative predictive value of oxymetry was 100% in this short series of patients.
  
  
  CONCLUSIONS
  If these results were confirmed in a larger series of patients, a normal SpO2 value during labour could be reassuring in case of abnormal fetal heart rate.
authors.affiliation: Clinique Universitaire Port-Royal-Baudelocque, Paris.
authors.forename: B
authors.initials: B
authors.lastname: Carbonne
authors.forename: F
authors.initials: F
authors.lastname: Audibert
authors.forename: L
authors.initials: L
authors.lastname: Segard
authors.forename: E
authors.initials: E
authors.lastname: Sebban
authors.forename: B
authors.initials: B
authors.lastname: Beyaert
authors.forename: D
authors.initials: D
authors.lastname: Cabrol
authors.forename: E
authors.initials: E
authors.lastname: Papiernik
mesh_terms: D001034:Apgar Score; D005260:Female; D005312:Fetal Blood / Q000737:chemistry; D005316:Fetal Distress / Q000097:blood*; D005323:Fetal Monitoring / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010092:Oximetry / Q000295:instrumentation / Q000379:methods*; D011237:Predictive Value of Tests; D011247:Pregnancy; D014471:Umbilical Veins
vernacular_title: Etude préliminaire sur l'utilisation de l'oxymétrie de pouls foetal pendant le travail.