| Antimüllerian hormone and pregnancy loss from the Effects of Aspirin in Gestation and Reproduction trial .. cacher .... voir plus ..
Objective To evaluate if antimüllerian hormone (AMH) is associated with pregnancy loss. Design Prospective cohort study within a block-randomized, double-blind, placebo-controlled trial of low-dose aspirin. Setting Not applicable. Patient(s) Women (n = 1,228) were of ages 18–40 years with a history of one to two pregnancy losses and were actively attempting pregnancy without fertility treatment. Intervention(s) Not applicable. Main Outcome Measure(s) Pregnancy loss. Result(s) Relative risks (and 95% confidence interval [CIs]) of human chorionic gonadotropin (hCG)-detected and clinical pregnancy loss were assessed with the use of log binomial models with robust variance and inverse probability weights adjusted for age, race, body mass index, income, trial treatment assignment, parity, number of previous losses, and time since most recent loss. AMH levels were defined as: low (<1.00 ng/mL; n = 124), normal (referent; 1.00–3.5 ng/mL; n = 595), and high (>3.5 ng/mL; n = 483). Of the 1,202 women with baseline AMH data, 19 (17.3%) with low AMH experienced a clinical loss, compared with 61 (11.4%) with normal AMH and 50 (11.8%) with high AMH levels. Low or high AMH levels, compared with normal AMH, were not associated with clinical loss. Results for hCG-detected pregnancy loss mirrored those of clinical loss. Conclusion(s) AMH values were not associated with hCG-detected or clinical pregnancy loss in unassisted conceptions in women with a history of one to two previous losses. Our data do not support routine AMH testing for prediction of pregnancy loss. Clinical Trial Registration Number NCT00467363.
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| Role of Anti-Müllerian Hormone in pathophysiology, diagnosis and treatment of Polycystic Ovary Syndrome: a review .. cacher .... voir plus ..
Polycystic ovary syndrome (PCOS) is the most common cause of chronic anovulation and hyperandrogenism in young women. Excessive ovarian production of Anti-Müllerian Hormone, secreted by growing follicles in excess, is now considered as an important feature of PCOS. The aim of this review is first to update the current knowledge about the role of AMH in the pathophysiology of PCOS. Then, this review will discuss the improvement that serum AMH assay brings in the diagnosis of PCOS. Last, this review will explain the utility of serum AMH assay in the management of infertility in women with PCOS and its utility as a marker of treatment efficiency on PCOS symptoms. It must be emphasized however that the lack of an international standard for the serum AMH assay, mainly because of technical issues, makes it difficult to define consensual thresholds, and thus impairs the widespread use of this new ovarian marker. Hopefully, this should soon improve.
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