Respiratory gases in uterine circulation of pregnant domestic swine as sampled by indwelling catheters Academic Article uri icon

abstract

  • Data dealing with placental respiratory gas exchange are scant for species with an epitheliochorial placenta. None have been obtained from awake, unstressed animals. For this reason 18 pregnant swine were prepared with chronically implanted polyvinyl catheters. Respiratory gases in arterial and uterine venous blood were observed between the 30th day of gestation and term (110 days). There was a statistically significant relationship between uterine venous oxygen partial pressure (PO2) and the day of gestation. The value for PO2fell from a mean of 70 to 57 Torr. The latter appears to be the highest mean value yet observed in uterine vein of any species at term.

published proceedings

  • American Journal of Physiology - Regulatory Integrative and Comparative Physiology

author list (cited authors)

  • Caton, D., & Bazer, F. W.

complete list of authors

  • Caton, D||Bazer, FW

publication date

  • January 1978