Successful IVF pregnancy despite inadequate ovarian steroidogenesis due to congenital lipoid adrenal hyperplasia (CLAH): a case report

Frédérique Albarel, Jeanne Perrin, Margaux Jegaden, Florence Roucher-Boulez, Rachel Reynaud, Thierry Brue, Blandine Courbiere
Human Reproduction 2016, 31 (11): 2609-2612
Steroidogenic acute regulatory protein (StAR) mutations are the most frequent aetiologies of congenital lipoid adrenal hyperplasia (CLAH). Phenotypes may vary, and puberty may be absent in affected individuals. To date, only two pregnancies have been described in 46,XX CLAH patients with StAR mutations; these patients exhibited ovarian steroidogenesis along with spontaneous puberty and menarche and normal menses. The patient described here presented with CLAH caused by the homozygous (unreported, 1 bp) deletion c.719del in the StAR gene, which was diagnosed after acute adrenal insufficiency when the patient was 10 days old. The patient did not undergo spontaneous puberty, so puberty was induced by HRT when the patient was 13 years old. At the age of 25 years, the patient was referred to our reproductive unit because she desired to conceive. An initial cycle of clomiphene, stimulation produced follicular growth with two mature follicles measuring 18 and 15 mm, respectively, but the plasma oestradiol levels remained low (18 pg/ml) and the endometrium was thin (3 mm). Pregnancy was finally achieved after ovarian stimulation, IVF and transfer of frozen-thawed embryos after endometrial preparation with HRT. A normal female child was delivered following a 40 weeks' uneventful pregnancy. We therefore report the first IVF pregnancy achieved in a 46,XX CLAH patient homozygous for a StAR mutation, with inadequate ovarian steroidogenesis and no spontaneous puberty.

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