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A method of continuous monitoring of fetal intravascular PO2 at various sites in the circulation in the chronically catheterized fetal sheep for up to 41 days (mean 11.1 days) has been compared with values obtained in blood samples measured extracorporeally in a standard blood gas analyzer. A double-blind comparison of the two methods showed that there was no bias between the two methods and correlation was 0.94. The stability of the electrodes was superior to that of a conventional blood gas analyzer. In every animal there was continuous variability of fetal vascular PO2. In the period from 105 to 126 days' gestation we noted the presence of slow increases in basal uterine tone that we have called "contractures". The frequency of these contractures was very regular at approximately one per hour. The frequency of these contracutres was very regular at approximately one per hour. There is a statistically significant related fall in fetal vascular PO2 in relation to these contractures. Well-coordinated uterine contractions during labor also produced a fall in fetal vascular PO2 that was related to the uterine activity.
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
January 1982,
Biology of the neonate,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
June 1995,
The Journal of physiology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
June 1988,
Canadian journal of physiology and pharmacology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
November 1980,
American journal of obstetrics and gynecology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
April 1983,
The American journal of physiology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
October 1979,
The Journal of physiology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
January 1972,
Research in veterinary science,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
February 2016,
American journal of obstetrics and gynecology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
December 2016,
American journal of obstetrics and gynecology,
C A Jansen, and
E J Krane, and
A L Thomas, and
N F Beck, and
K C Lowe, and
P Joyce, and
M Parr, and
P W Nathanielsz
March 1980,
The Biochemical journal,
