RT Journal Article T1 An International Consortium Update: Pathophysiology, Diagnosis, and Treatment of Polycystic Ovarian Syndrome in Adolescence. A1 Ibañez, Lourdes A1 Oberfield, Sharon E A1 Witchel, Selma A1 Auchus, Richard J A1 Chang, R Jeffrey A1 Codner, Ethel A1 Dabadghao, Preeti A1 Darendeliler, Feyza A1 Elbarbary, Nancy Samir A1 Gambineri, Alessandra A1 Garcia Rudaz, Cecilia A1 Hoeger, Kathleen M A1 Lopez-Bermejo, Abel A1 Ong, Ken A1 Peña, Alexia S A1 Reinehr, Thomas A1 Santoro, Nicola A1 Tena-Sempere, Manuel A1 Tao, Rachel A1 Yildiz, Bulent O A1 Alkhayyat, Haya A1 Deeb, Asma A1 Joel, Dipesalema A1 Horikawa, Reiko A1 de Zegher, Francis A1 Lee, Peter A K1 Anti-androgen K1 Hirsutism K1 Hyperinsulinism K1 Insulin sensitizers K1 Menstrual irregularities K1 Obesity K1 Polycystic ovarian morphology AB This paper represents an international collaboration of paediatric endocrine and other societies (listed in the Appendix) under the International Consortium of Paediatric Endocrinology (ICPE) aiming to improve worldwide care of adolescent girls with polycystic ovary syndrome (PCOS)1. The manuscript examines pathophysiology and guidelines for the diagnosis and management of PCOS during adolescence. The complex pathophysiology of PCOS involves the interaction of genetic and epigenetic changes, primary ovarian abnormalities, neuroendocrine alterations, and endocrine and metabolic modifiers such as anti-Müllerian hormone, hyperinsulinemia, insulin resistance, adiposity, and adiponectin levels. Appropriate diagnosis of adolescent PCOS should include adequate and careful evaluation of symptoms, such as hirsutism, severe acne, and menstrual irregularities 2 years beyond menarche, and elevated androgen levels. Polycystic ovarian morphology on ultrasound without hyperandrogenism or menstrual irregularities should not be used to diagnose adolescent PCOS. Hyperinsulinemia, insulin resistance, and obesity may be present in adolescents with PCOS, but are not considered to be diagnostic criteria. Treatment of adolescent PCOS should include lifestyle intervention, local therapies, and medications. Insulin sensitizers like metformin and oral contraceptive pills provide short-term benefits on PCOS symptoms. There are limited data on anti-androgens and combined therapies showing additive/synergistic actions for adolescents. Reproductive aspects and transition should be taken into account when managing adolescents. PB S. Karger YR 2017 FD 2017-07-10 LK http://hdl.handle.net/10668/11819 UL http://hdl.handle.net/10668/11819 LA en NO Ibáñez L, Oberfield SE, Witchel S, Auchus RJ, Chang RJ, Codner E, et al. An International Consortium Update: Pathophysiology, Diagnosis, and Treatment of Polycystic Ovarian Syndrome in Adolescence. Horm Res Paediatr. 2017;88(6):371-395 DS RISalud RD Apr 18, 2025