O-095 Different phenotypes of PCOS: Implications to clinical practice

Abstract

Abstract Polycystic ovary syndrome (PCOS) is a very common, heterogeneous syndrome which presents with a spectrum of clinical and biochemical features. It is associated with both reproductive and metabolic dysfunction and has a negative impact on long term health, including mental health. Although there appears to be a common genetic background to PCOS, regardless of presentation, environmental factors, including diet, play an important part in determining the phenotype. The most commonly used diagnostic criteria, the Rotterdam criteria, takes account of the heterogenous nature of the syndrome but the spectrum of presentation can be categorised as four clinical and biochemical subtypes which comprise (A) ovulatory dysfunction, hyperandrogenism, polycystic ovaries (PCO), (B) ovulatory dysfunction, hyperandrogenism but without PCO, (C) hyperandrogenism without ovulatory dysfunction but with PCO and (D) ovulatory dysfunction with PCO but without hyperandrogenism. These are not rigid categories since some women may go from one to another, for example weight gain may lead to anovulation in a woman who previously had hirsutism but regular cycles. Nevertheless, the diagnostic sub-category has a significance influence on clinical management. Women who have both hyperandrogenism and ovulatory dysfunction (A&B) are at higher risk of metabolic dysfunction which is exacerbated by obesity (and carries a high long-term risk of diabetes and cardiovascular disease) and so merit thorough investigation which includes assessment of glucose tolerance and lipids. Those who have predominantly ovulatory problems may require fertility treatment or regulation of menses but some who simply have irregular menses may need no specific treatment. Symptoms of hyperandrogenism (hirsutism, acne, alopecia) can be particularly distressing and may be best managed in collaboration with a dermatologist. The negative impact of PCOS on mental health is a very common problem, the high prevalence of which has only recently been appreciated. Not surprisingly, it is particularly relevant in those women who have moderate to severe symptoms of hyperandrogenism. In summary, PCOS is a syndrome characterised by a variety of symptoms and endocrine abnormalities and it is important to tailor treatment individually, according to the need for symptom relief and with regard to concerns about long-term health.