5 female patients with isolated hypothalamic hypogonadism were given subcutaneous pulses of gonadotrophin-releasing hormone (GnRH), 2.5–15 µg every 90 min, for 2–6 months by means of an automated pump. This treatment produced an increase in serum LH, FSH, and estradiol levels in 4 patients, all of whom became pregnant. The estradiol levels failed to rise in 1 patient, in spite of an adequate LH and FSH response, and a subsequent biopsy showed evidence of primary ovarian failure in addition to the hypothalamic deficit. We conclude that subcutaneous pulsatile GnRH administration is a simple, safe, and relatively inexpensive way to induce ovulation in patients with hypothalamic hypogonadism.

Keywords:
Hypothalamic hormones, Hypogonadism, Ovulation induction, Gonadotrophins
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© 1984 S. Karger AG, Basel
1984
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