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- E Jauniaux, A Watson, O Ozturk, D Quick, and G Burton.
- Academic Departments of Obstetrics and Gynaecology, and Anaesthetics, University College London (UCL), London and Department of Anatomy, University of Cambridge, Cambridge, UK.
- Hum. Reprod. 1999 Nov 1; 14 (11): 2901-4.
AbstractA new multiparameter sensor that combines electrochemical and fibre-optic technology was used for continuous in-vivo investigation of pH, carbon dioxide partial pressure (PCO(2)), oxygen partial pressure (PO(2)), bicarbonate concentration (HCO(3)(-)), base excess, and oxygen saturation (O(2)Sat) early in human pregnancy. The sensor was inserted into the amniotic cavity and the placental bed of 16 pregnancies at 10-15 weeks gestation, before termination under general anaesthesia. Amniotic fluid and retroplacental blood from the same site were also aspirated and analysed by means of cartridges and a portable blood gas analyser. Eleven series of measurements were obtained. The variation in measurements over the 5 min of monitoring was
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