Early and late presentation of the ovarian hyperstimulation syndrome: two distinct entities with different risk factors*
Lyons CA, Wheeler CA, Frishman GN, Hackett RJ, Seifer DB, Haning RV. Early and late presentation of the ovarian hyperstimulation syndrome: two distinct entities with different risk factors*. Human Reproduction 1994, 9: 792-799. PMID: 7929724, DOI: 10.1093/oxfordjournals.humrep.a138598.Peer-Reviewed Original ResearchConceptsLate ovarian hyperstimulation syndromeOvarian hyperstimulation syndromeSevere ovarian hyperstimulation syndromeNumber of oocytesHyperstimulation syndromeEarly ovarian hyperstimulation syndromePost-human chorionic gonadotrophinDifferent risk factorsStepwise logistic regressionSeries of casesDay-hCGMultiple gestationsClinical predictorsFertilization cyclesGestational sacEarly pregnancyLate presentationOestradiol concentrationsSerum concentrationsEgg retrievalRisk factorsHigh oestradiolAcute effectsChorionic gonadotrophinRetrospective analysis