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The FIGO ovulatory disorders classification system.

Malcolm G Munro1, Adam H Balen2, SiHyun Cho3

  • 1The University of California, Los Angeles, California, USA.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics
|August 19, 2022
PubMed
Summary
This summary is machine-generated.

A new classification system for ovulatory disorders, including polycystic ovary syndrome (PCOS), has been developed by FIGO. This system aims to improve research, education, and clinical care by providing a structured approach to diagnosing ovulatory dysfunction.

Keywords:
anovulationovulatory disordersovulatory disorders classificationovulatory dysfunction

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Area of Science:

  • Reproductive Endocrinology
  • Gynecology
  • Medical Classification Systems

Background:

  • Ovulatory disorders are common causes of infertility and abnormal uterine bleeding, often linked to Polycystic Ovary Syndrome (PCOS).
  • Current classification systems are outdated, hindering research, education, and clinical management.
  • The complexity of ovulatory dysfunction requires a standardized, comprehensive classification.

Purpose of the Study:

  • To develop and present a new, tiered classification system for ovulatory disorders.
  • To address the limitations of existing classification systems and facilitate progress in the field.
  • To create a framework that supports research, education, and clinical practice.

Main Methods:

  • A rigorous Delphi process involving international stakeholders, including experts, societies, and patient representatives.
  • Two face-to-face meetings and five rounds of Delphi consensus.
  • Development of a three-level, multi-tiered classification system based on an anatomic (HyPO-P) and etiological (GAIN-FIT-PIE) model.

Main Results:

  • A new three-level classification system for ovulatory disorders, including a distinct category for PCOS.
  • The system utilizes mnemonics: HyPO-P for the primary anatomic level and GAIN-FIT-PIE for the secondary etiological stratification.
  • The tertiary level allows for specific diagnostic entities, enhancing diagnostic precision.

Conclusions:

  • The new FIGO classification system provides a standardized framework for ovulatory disorders.
  • Widespread adoption is expected to improve research interpretation, clinical care, and medical education.
  • The system incorporates a mechanism for periodic reevaluation and revision to reflect advancements in the field.