Transfer of 2 Embryos Using a Double-Embryo Transfer Protocol Versus 2 Sequential Single-Embryo Transfers: The Impact on Multiple Pregnancy.
Reprod Sci
; 25(10): 1501-1508, 2018 10.
Article
em En
| MEDLINE
| ID: mdl-29558870
INTRODUCTION: Assisted reproductive technologies (ARTs) are associated with potential risks, mainly related to multiple pregnancies, which are around 20% to 25%. Iatrogenic multiple pregnancies due to ovarian stimulation with multiples embryos transferred can be avoided by the elective single-embryo transfer (eSET), a growing practice worldwide. Adequately applied eSET, which impact on the incidence of complications without compromising treatment success, is still a challenge. The aim of this study was to compare the cumulative success rates of elective transfer of 2 embryos when transferred one by one (eSET), versus the success rates of elective double-embryo transfer (DET) in a single procedure, in a good prognosis population. METHODS: This study evaluated 610 good prognosis infertile couples undergoing ART, split into 2 groups: eSET group which included those receiving first eSET (n = 237) and for those who did not become pregnant, they could receive a second frozen-thawed SET; and eDET group (n = 373) who received elective transfer of 2 good quality embryos in the first transfer. RESULTS: Clinical pregnancy outcomes after a transfer of 2 embryos were similar between the groups (DET: 46.6% vs accumulated SET: 45.9%; P = .898). Multiple pregnancy rate was significantly lower in the group receiving transfer of 2 embryos, one by one, compared to DET (DET: 32.2% vs accumulated SET: 6.7%; P < .001). CONCLUSIONS: The eSET policy should be stimulated for good prognosis couples, as it maintains the accumulated clinical pregnancy rates, avoids multiples pregnancies, and consequently the maternal and neonate complication and indirect costs of treatment when considering spending on the obstetrics are reduced.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Gravidez Múltipla
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Resultado da Gravidez
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Fertilização in vitro
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Transferência Embrionária
Tipo de estudo:
Observational_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Pregnancy
Idioma:
En
Revista:
Reprod Sci
Assunto da revista:
MEDICINA REPRODUTIVA
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos