Premium
HAEMODYNAMICS OF MILD HYPERTENSION IN PREGNANCY
Author(s) -
Lim Y. L.,
Walters W. A. W.
Publication year - 1979
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1979.tb10593.x
Subject(s) - peripheral resistance , medicine , hemodynamics , stroke volume , cardiac output , cardiology , pregnancy , vascular resistance , blood pressure , heart rate , sympathetic nervous system , essential hypertension , cardiac index , circulatory system , blood volume , anesthesia , biology , genetics
Summary One hundred and sixty‐three haemodynamic studies were done serially in 23 normotensive and 25 mildly hypertensive women during pregnancy. With all subjects resting in the left lateral position, heart rate, cardiac output, stroke volume, left ventricular work index, total peripheral vascular resistance and haematocrit were all significantly higher while plasma volume per unit body weight was significantly lower in the hypertensive than in the normotensive pregnant women. It is postulated that this hyperkinetic circulatory state is due to hyper‐activity of the sympathetic adrenergic component of the autonomic nervous system in hypertensive pregnancy.