RELATIVE CONTRIBUTIONS OF ANOVULATION AND LUTEAL PHASE DEFECT TO THE REDUCED PREGNANCY RATE OF BREAST-FEEDING WOMEN

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dc.contributor.authorDIAZ, S
dc.contributor.authorCARDENAS, H
dc.contributor.authorBRANDEIS, A
dc.contributor.authorMIRANDA, P
dc.contributor.authorSALVATIERRA, AM
dc.contributor.authorCROXATTO, HB
dc.date.accessioned2025-01-23T19:22:02Z
dc.date.available2025-01-23T19:22:02Z
dc.date.issued1992
dc.description.abstractObjective: To evaluate the contribution of anovulation and luteal phase defects to lactational infertility.
dc.description.abstractDesign: Prospective longitudinal follow-up.
dc.description.abstractSetting: Outpatient clinic.
dc.description.abstractSubjects: Forty-nine women fully nursing and amenorrheic on day 75 postpartum and 25 cycling, interval non-nursing women.
dc.description.abstractInterventions: Plasma prolactin, luteinizing hormone, estradiol (E2), and progesterone (P) levels twice a week up to the second postpartum menses.
dc.description.abstractMain Outcome Measures: Ovulation rate and endocrine profile of the menstrual cycles.
dc.description.abstractResults: Ovulation rates were 37% and 97% at 6 and 12 months postpartum; 67% of ovulations occurred in amenorrhea. The luteal phase was shorter, and E2 and P levels were lower in lactating women than in non-nursing women. These parameters were closer to normal in the second cycle than the first, in spite of active nursing. The risk of ovulation and pregnancy in amenorrhea was 27.7% and 0.9% at month 6 postpartum. After the first menses, these risks were 93% and 7%, respectively.
dc.description.abstractConclusion: The abnormal endocrine profile of the first luteal phase offers effective protection to women who ovulate during lactational amenorrhea within the first 6 months after delivery. Later luteal phases are improved and women are at risk of pregnancy.
dc.fuente.origenWOS
dc.identifier.issn0015-0282
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98942
dc.identifier.wosidWOS:A1992JN19200005
dc.issue.numero3
dc.language.isoen
dc.pagina.final503
dc.pagina.inicio498
dc.revistaFertility and sterility
dc.rightsacceso restringido
dc.subjectBREAST-FEEDING
dc.subjectANOVULATION
dc.subjectLUTEAL PHASE DEFECT
dc.subjectOVARIAN FUNCTION
dc.subjectLACTATIONAL INFERTILITY
dc.subject.ods03 Good Health and Well-being
dc.subject.ods05 Gender Equality
dc.subject.odspa03 Salud y bienestar
dc.subject.odspa05 Igualdad de género
dc.titleRELATIVE CONTRIBUTIONS OF ANOVULATION AND LUTEAL PHASE DEFECT TO THE REDUCED PREGNANCY RATE OF BREAST-FEEDING WOMEN
dc.typeartículo
dc.volumen58
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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