[Fetal oxygen saturation during normal delivery].
The aim of the study is to monitor fetal oxygen saturation--SpO2 during uncomplicated labour; to assess normal values and compare them to the data from fetal blood analysis and from clinical finding in the newborn. The study includes 53 pregnant women in term during active labour without evidence of fetal distress. Study is carried out with Nellcor-N 400--a system for measuring fetal pulse oxymetry and fetal pulse rate; oxygen sensor FS-14 and printer P-400 /Nellcor Bennet Incorporation/. Fetal pulse rate is monitored by cardiotograph Hewlett Packard. Mean duration of monitoring during first stage of labour is 98 +/- 48 min, versus 37 +/- 11 min during second stage. Mean values of SpO2 are 48.8 +/- 10% during the first stage of labor v/s 46 +/- 9.6% during second stage. Baby is born in good health--Apgar score more than 7 and mean pH value from umbilical artery 7.25. The conclusion is made that pulse oxymetry is an easy non invasive method for fetal monitoring without side effects concerning woman on labour and fetus. A relatively large range of variations of normal values is observed.
Nikolov
A
A
Dimitrov
A
A
Vakrilkova
L
L
Iar'kova
N
N
D000328:Adult; D001034:Apgar Score; D015148:Cardiotocography; D036861:Delivery, Obstetric; D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005323:Fetal Monitoring; D005333:Fetus / Q000502:physiology*; D006801:Humans; D007231:Infant, Newborn; D010092:Oximetry; D010100:Oxygen / Q000032:analysis*; D011247:Pregnancy
D010100:Oxygen