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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.
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
June 1975,
Clinical science and molecular medicine. Supplement,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
January 1971,
The Journal of nuclear biology and medicine,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
January 1978,
La Medicina del lavoro,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
January 1985,
Clinical and experimental obstetrics & gynecology,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
June 1980,
The Journal of laboratory and clinical medicine,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
November 1985,
Harefuah,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
October 1950,
Medecine et hygiene,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
March 1967,
The Journal of clinical investigation,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
January 1973,
Acta endocrinologica. Supplementum,
J M Brandes, and
H Abramovici, and
M Katz, and
D Diengott, and
A Spindel, and
L Kahana
December 1975,
American journal of obstetrics and gynecology,
