Hirsutism, Normal Androgens and Diagnosis of PCOS

Hirsutism is defined as the presence of terminal hair with male pattern distribution in women. While in the general population, hirsutism affects around 4-11% of women, it is the main manifestation of hyperandrogenism in women with polycystic ovary syndrome (PCOS), with a prevalence estimated at 65-75%. Hirsutism in PCOS is associated with both androgen excess and individual response of the pilosebaceous unit to androgens. The modified Ferriman-Gallwey (mFG) scoring system has been widely used in clinical practice to visually score excessive terminal hair, thus standardizing hirsutism evaluation and facilitating data comparison. Although a universal mFG score cutoff would be useful for comparisons, ethnic variations, as well as skin type and other factors, should be considered when evaluating hirsutism in distinct populations. In turn, androgen levels, measured by conventional techniques, have been shown to correlate poorly with the severity of hirsutism. Indeed, while most women with PCOS and hirsutism also have higher than reference values for serum androgen levels, some of them may not present with biochemical hyperandrogenism, representing a challenge to the diagnosis of PCOS. In this article, we critically review this not uncommon condition in women with PCOS presenting with hirsutism but normal androgen levels.

Evaluation of Biochemical Hyperandrogenism in Adolescent Girls with Menstrual Irregularities

BACKGROUND

The aim of this study was to evaluate fertility hormone levels in adolescent girls and ten years older women with menstrual irregularities and with or without polycystic ovaries on ultrasound examination. The study population consisted of 276 patients aged 12-18 years and 469 patients aged 22-28 years who had menstrual irregularities with or without polycystic ovaries on ultrasound examination.

METHODS

All subjects underwent a comprehensive medical assessment including documentation of the detailed history, physical and gynecological examination, measurement of the essential laboratory variables, and measurement of the fertility hormone levels.

RESULTS

Within 745 patients (mean age: 21.4±4.8), 276 patients were aged 12-18 years (group 1) and 469 patients were aged 22-28 years (group 2). Dehydroepiandrosterone sulfate (DHEA-S) (237.7 (22.6-721.5) vs. 162.5 (2.4- 660.7) respectively; p<0.001) was significantly higher in group 1 than group 2. There were 74 subjects (26.8%) with LH/FSH ratio > 2 in group 1 and 74 subjects (15.8%) with LH/FSH ratio > 2 in group 2 (p<0.001).

CONCLUSIONS

Biochemical hyperandrogenism is much more valuable in adolescents than in young adult women for the diagnosis of PCOS. Biochemical hyperandrogenism should be tested in adolescents with menstrual irregularities.

Association between biochemical hyperandrogenism parameters and Ferriman-Gallwey score in patients with polycystic ovary syndrome: A systematic review and meta-regression analysis

BACKGROUND AND OBJECTIVE

A limited number of studies have evaluated the relationship between clinical and biochemical hyperandrogenism (HA). This study aimed to evaluate the association between biochemical hyperandrogenism parameters (BHPs) and Ferriman-Gallwey (FG) score in patients with polycystic ovary syndrome (PCOS).

METHODS

We searched PubMed, Scopus, Google Scholar, ScienceDirect and Web of Sciences databases (2000-2015) to identify studies investigating clinical and biochemical parameters of HA in PCOS patients. In this meta-analysis, both fixed and random effect models were applied to estimate pooled effect size. To assess the relationships between BHPs and FG score, meta-regression analysis was used.

RESULTS

Fifty-five study groups with a total of 6593 PCOS patients were analysed. Meta-regression analysis of pooled data from all eligible studies showed significant positive relationships of FG score with androstenedione (A4) (P=.034) and dehydroepiandrosterone sulphate (DHEAS) (P=.012), whereas it showed no association with total testosterone (tT), free testosterone (fT), sex hormone bonding globulin (SHBG) and free androgen index (FAI). The results did not change after adjusting for quality assessment or method of assay. Nor did the associations between A4 and FG score remain after adjusting for age and BMI, diagnostic criteria for PCOS and study design or the association between DHEAS and FG score remain after adjusting for ethnicity.

CONCLUSION

This meta-analysis confirmed the associations of some BHPs, including A4 and DHEAS with FG score, indicating that measurement of these parameters can be useful for managing PCOS patients with hirsutism.

Hirsutism and oligomenorrhea are appropriate screening criteria for polycystic ovary syndrome in adolescents

We evaluated the association of hirsutism and oligomenorrhea (persistent menstrual cycles > 45 days) as screening criteria for the detection of biochemical hyperandrogenism (BH) and polycystic ovaries (PCOM) during adolescence and determined which androgens, granulosa cell hormone, ultrasonographic parameters have the best association with polycystic ovary syndrome (PCOS). Hirsute girls with oligomenorrhea (N = 26 Hirs/Oligo group) and non-hirsute girls with regular cycles (N = 63, C group) were studied. Prevalence of BH and PCOM, diagnostic performance of androgens and ultrasound parameters for PCOS diagnosis were analyzed. BH and PCOM prevalence were higher in the Hirs/Oligo girls than in the C girls (76.9% versus 25.5%; 92.3% versus 33.3%, respectively; p < 0.0001). A complete PCOS phenotype (Hirs/Oligo with BH and PCOM) was observed in 73.1% of the Hirs/Oligo group. The presence of both BH and PCOM was observed in 7.9% of the C group. The parameters with the best diagnostic performance were free androgen index ≥6.1, testosterone ≥2.4 nmol/L, follicle number ≥12 and ovarian volume ≥10 ml anti-Müllerian hormone (AMH) exhibited a low diagnostic accuracy. Hirsutism and persistent menstrual cycle over 45 days are highly associated with BH and PCOM suggesting that the presences of both criteria are necessary for the diagnosis of PCOS during adolescence.