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  • Title: Urinary estrogen excretion and concentration of serum human placental lactogen in pregnancies following legally induced abortion.
    Author: Obel EB, Madsen M.
    Journal: Acta Obstet Gynecol Scand; 1980; 59(1):37-41. PubMed ID: 7386188.
    Abstract:
    Feto-placental function was assessed by 24-hour excretion of estrogen in urine and by the concentration of human Placental Lactogen (hPL) in serum in pregnant women whose previous pregnancy was terminated by legally induced abortion. The mean 24-hour excretion of estrogens in urine and the mean concentration of hPL in serum were no lower in this group than in women without previous induced abortion. Neither was the frequency of a low 24-hour excretion of estrogens in urine or low concentration of hPL in serum (values less than mean - 1.96 s) found to be increased. This study could not demonstrate an increased frequency of dysfunction of the feto-placental unit during the last part of pregnancy in women with previous legally induced abortion. These findings indicate that legal abortion does not seem to increase the frequency of retarded intrauterine growth in a subsequent pregnancy. The effect of previous induced abortion on feto-lacental function in a subsequent pregnancy was examined by measuring urinary excretion of estrogens and the concentration of serum human placental lactogens (hPL) during the third trimester of pregnancy. The study included 576 women whose previous pregnancy had been terminated by a legally induced abortion. These women, Group 1, were compared to different control groups selected from among other women registered for delivery during the same period. These were: Group 2, women with previous spontaneous abortion or stillbirth; Group 3, women with previous live birth pregnancy outcome; Group 4, women with no previous pregnancies. The study subject population was from 2 hospital registers. Data are presented figuratively in hormonal excretion curves, and it was shown that the mean 24-hour excretion of estrogens in urine and the mean concentration of hPL in serum were no lower in Group 1 than in the other groups studied. Nor was the frequency of a low 24-hour excretion of estrogens in urine or low concentration of hPL in serum (values less than mean of -1.96 seconds) found to be increased. It is concluded that this study design could not detect increased frequency of placental dysfunction related to previously legally induced abortion. Hence, the findings are taken to mean that legal abortion does not retard intrauterine growth of the feto-placental unit in subsequent pregnancies.
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