Abrams RM, Stanley H, Carter R, Notelovitz M. Effect of conjugated estrogens on vaginal blood flow in surgically menopausal women.
Am J Obstet Gynecol 1982;
143:375-8. [PMID:
6283890 DOI:
10.1016/0002-9378(82)90075-8]
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Abstract
The effect of an intravenous bolus of 25 mg of conjugated estrogen (Premarin) on vaginal blood flow in seven surgically menopausal women was measured by a thermal conductance probe. Electrical power (0.8 W) was supplied to a resistance wire incorporated in the surface of the probe, and its surface temperature was monitored continuously for 30 minutes six times daily for 3 days. The mean temperature difference (delta T) between the heated probe surface and the vagina remained unchanged during a preinjection control day. While there were individual differences in response, analysis of mean delta T during the first day following the injection of the estrogen revealed a significant linear downward trend at delta T, indicating a rise in vaginal blood flow. Delta T plateaued on day 2 and showed a slight rise in the morning of day 3. It may be concluded that estrogen administered in this dose and form markedly increases vaginal blood flow.
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