Hormonal profile as a prognostic index of early threatened abortion.

Twelve pregnancies, in which the initial serum hCG titer as measured by RRA was subnormal, were studied to determine if a hormonal profile would serve as a prognostic index of spontaneous abortion. Three of the 12 patients delivered term babies. The hCG titers remained subnormal throughout the pregnancy, however, the serum E2, P, 17alpha-OHP, and PRL remained normal. One of the 12 patients aborted in week 25 of gestation. The serum hCG and PRL were subnormal; however, the serum E2, P, and 17alpha-OHP were normal. Eight of the 12 patients aborted prior to 100 days' gestation. The serum hCG, E2, and PRL were subnormal whereas the P and 17alpha-OHP were normal. Therefore, in patients who have subnormal serum hCG titers, serum E2 and PRL may provide a prognostic index of spontaneous abortion.