The Effect of Postural Changes on Plasma Renin Activity During Normal and Pathologic Pregnancies
作者:
JOSEPH BRANDES,
H. ABRAMOVICI,
M. KATZ,
D. DIENGOTT,
A. SPINDEL,
L. KAHANA,
期刊:
Obstetrics & Gynecology
(OVID Available online 1978)
卷期:
Volume 52,
issue 5
页码: 530-532
ISSN:0029-7844
年代: 1978
出版商: OVID
数据来源: OVID
摘要:
A study of the effect of posture on plasma renin activity (PRA) in the third trimester in 27 gravidas revealed a significantly greater increase in PRA in the supine position, compared to the left lateral. The women were classified into 3 groups: normal pregnancy, preeclampsia, intrauterine fetal death. There was no statistical difference in PRA among the 3 groups. It is assumed that the increase of PRA in the supine position was due mainly to mechanical pressure by the gravid uterus on the great vessels (regardless of whether the fetus was dead or alive) and that effective circulatory volume was thus reduced. However, low PRA in the left lateral position in women with preeclampsia seemed to correlate with more severe disease in these women.
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