Why the study?
How do postural changes from supine to standing affect hemodynamic and autonomic parameters in normal versus hypertensive pregnancies?
How do postural changes from supine to standing affect hemodynamic and autonomic parameters in normal versus hypertensive pregnancies?
Severe preeclampsia is characterized by profound abnormal hemodynamic responses to postural changes (decreased cardiac output and stroke volume, increased total peripheral resistance) compared to normal and chronic hypertensive pregnancies.
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Severe preeclamptic pregnancies exhibit distinct postural hemodynamics; hypothesis-generating for autonomic involvement and requires prospective validation before clinical use.
Miyake et al. (2002) studied this question.
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