Major advances have recently been made in our understanding of Ovarian Hyperstimulation Syndrome (OHSS). These include improving classification, recognizing primary and secondary risk factors, manipulating and monitoring ovarian stimulation, handling risky situations, and elucidating the underlying pathophysiologic mechanisms of the syndrome. As su

Introduction - General Relevance of OHSS to the Safety and Quality of ART  Section I: General and Clinical Aspects  1. General Definitions of OHSS  2. Epidemiology and Primary Risk-Factors of OHSS  3. Secondary Risk-Factors of OHSS during Stimulation  4. Clinical Manifestations of OHSS  5. Thrombo-Embolic Complications of OHSS  6. Anonymous Reports of Lethal Cases of OHSS  7. Modern Classification of OHSS  8. OHSS in Singleton and Twin Pregnancies  Section II: Pathophysiology of OHSS  9. Physiopatology of OHSS  10. Role of the Vascular Endothelial Growth Factor (VEGF) in the Pathophysiology of OHSS  11. The Rennin-Angiotensin System in the Pathophysiology of OHSS  12. Immunological Aspects of OHSS  13. Genetic Aspects of OHSS  14. Potential New Treatment Implications Derived from Recent Molecular Developments in OHSS  Section III: Management and Treatment  15. Treatment and Management of the Patients Presenting with OHSS  16. Management of OHSS from an American Perspective  17. Life-Threatening Forms of OHSS and the Intensive Care of the OHSS Patient  18. Outpatient Management of Patients with OHSS  Section IV: Prevention  19. Primary Prevention: Choice Induction and of Ovarian Stimulation in IVF and Non-IVF Technologies  20. Does Ovulation Triggering Influence the Risk of OHSS?  21. Secondary Prevention of Threatening OHSS  22. The Role of Coasting in the Prevention of Threatening OHSS: An European Perspective  23. The Role of Coasting in the Prevention of Threatening OHSS: An American Perspective  24. Health Economic Reflections on OHSS and the Importance of Registries  25. Intravenous Hydroxyethyl Starch Infusion and Albumin Administration: Effective Tools as Adjuvants in the Prevention of OHSS  26. Ovarian Hyperstimulation Syndrome (OHSS) Summar