Key result
Higher syncope severity in pregnancy is linked to extreme MAP changes.
Observational (n=38)
Severe syncope during postural change in pregnancy is associated with significant deviations in mean arterial pressure, suggesting orthostatic testing may be a useful adjunct to prenatal care.
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Severe syncope links to extreme MAP changes in pregnancy; hypothesis-generating case report leaves open role in prenatal care.
This report describes detailed cardiovascular changes observed in 38 pregnant patients who experienced syncope during postural change from sitting to standing. Sixteen (42%) of the patients had diabetes mellitus. The patients were divided into two groups based on the severity of their symptoms. The 19 who had more severe symptoms had mean arterial pressure (MAP) and MAP-determinant changes that were beyond the 10th and 90th percentile range, while those who had less severe symptoms had lesser cardiovascular changes. Syncope in normal pregnancy is usually short-lived and of little consequence. However, it may provide early warning of a cardiovascular problem. Hence, a simple, convenient cardiovascular test may be a useful adjunct to prenatal care.
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Hon et al. (1994) conducted an observational in Syncope in pregnancy (n=38). Severe syncope symptoms vs. Less severe syncope symptoms was evaluated on Mean arterial pressure (MAP) and MAP-determinant changes. Pregnant patients with more severe syncope symptoms had mean arterial pressure changes beyond the 10th and 90th percentile range, whereas those with less severe symptoms had lesser changes.
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