Journal of Clinical Endocrinology & Metabolism, Vol 74, 635-639, Copyright © 1992 by Endocrine Society
Fertility in women with late-onset adrenal hyperplasia due to 21- hydroxylase deficiency
S Feldman, L Billaud, JC Thalabard, MC Raux-Demay, I Mowszowicz, F Kuttenn and P Mauvais-Jarvis
Department of Endocrinology and Reproductive Medicine, Hopital Necker, France.
Fertility was evaluated in 53 female patients with late-onset adrenal
hyperplasia (LAH) due to 21-hydroxylase deficiency. The majority of
patients (n = 33) were seen for isolated postpubertal hirsutism, 9 patients
consulted for sterility, and 11 for irregular menstrual cycles. At the time
of diagnosis, the ages of patients ranged from 15- 40 yr (mean +/- SD, 24.6
+/- 5.2). No patient had major signs of virilization. The plasma
17-hydroxyprogesterone level was higher than normal in all patients (26.8
+/- 18.9 nmol/L; range, 3.4-139.4) and dramatically increased to 140.1 +/-
80.6 nmol/L (range, 35.2-324.2) after ACTH treatment. Plasma androgen
levels were high (testosterone, 3.25 +/- 2.03 nmol/L; delta
4-androstenedione, 13.65 +/- 5.60 nmol/L). Plasma basal and LHRH-stimulated
values were normal for FSH and high for LH. Basal and TRH-stimulated plasma
PRL levels were normal. Among these 53 LAH patients, only 20 desired a
pregnancy. These had a total of 38 pregnancies. Ten patients became
pregnant before the diagnosis of LAH and without any treatment; they had a
total of 18 pregnancies, 12 of which were successful. Moreover, 19 normal
pregnancies without any spontaneous abortion were carried to term by 14 of
16 hydrocortisone- treated patients. One patient needed the association of
one cure of clomiphene citrate. Hypofertility in LAH patients seems,
therefore, to be relative. Its mechanism is hormonal, with anovulation or
dysovulation, due to the continuous steroid feedback of adrenal origin on
the hypothalamo-pituitary axis. Hydrocortisone is the appropriate treatment
in most cases, reducing adrenal androgen overproduction and relieving
hypothalamic-pituitary gonadotropin function, thereby making possible
cyclic ovarian activity and ovulations.