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1.
J Assist Reprod Genet ; 36(5): 939-946, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30859416

RESUMEN

PURPOSE: To provide clinicians with data showing the benefits of transferring a single blastocyst in frozen embryo transfer (FET) cycles so that they may counsel their patients accordingly. METHODS: This is a closed cohort study of 678 FET cycles occurring between January 2011 and December 2017 in a private IVF laboratory and associated physicians' practice. Patients included in the analysis were less than 38 years of age at oocyte collection, had at least two vitrified blastocysts, and were undergoing their first autologous FET cycle. The patients were categorized into four groups after they had chosen either elective single-embryo transfer (eSET) or double-embryo transfer (eDET). Outcomes for eSET and eDET were compared within groups of patients having freeze-all IVF cycles (PGT-A patient vs. non-PGT-A patient) and fresh IVF transfer groups (negative outcome vs. pregnant/delivered in fresh cycle). Main outcome measures of the study were live birth, multiple pregnancy, and implantation rates. RESULTS: There were no statistically significant differences observed in live birth rates for eSET (54-62%) vs. eDET (54-66%) (P = 0.696-1.000) in the four patient groups evaluated. Multiple pregnancy rates were significantly decreased in all eSET groups (0-3%), compared with eDET groups (24-65%) (P = 0.0001-0.037). CONCLUSIONS: This data shows that transfer of a single vitrified-warmed blastocyst maintains live birth rates, while decreasing multiple pregnancies, and may become more acceptable to physicians and patients.


Asunto(s)
Criopreservación/métodos , Implantación del Embrión , Transferencia de Embrión/métodos , Fertilización In Vitro/métodos , Nacimiento Vivo , Guías de Práctica Clínica como Asunto/normas , Índice de Embarazo , Adulto , Estudios de Cohortes , Femenino , Humanos , Edad Materna , Embarazo , Resultado del Embarazo , Embarazo Múltiple , Adulto Joven
2.
Fertil Steril ; 95(3): 940-3, 2011 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-20850720

RESUMEN

OBJECTIVE: To compare final embryo disposition between patients and donor oocyte recipients. DESIGN: Retrospective study. SETTING: Private infertility practice. PATIENT(S): Patients undergoing IVF with embryo cryopreservation. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Final cryopreserved embryo disposition. RESULT(S): A total of 1,262 patients using autologous oocytes had 5,417 embryos cryopreserved. A majority either used their embryos (39%) or continued storage (35%). Of 364 patients, who did not use their remaining 1,406 embryos, 77 (21%) donated 290 embryos to other infertile couples, 41 (11%) donated 160 embryos for research, and 246 (68%) discarded 956 embryos. Concurrently, 272 donor oocyte recipients had 1,233 embryos cryopreserved. A majority either used their embryos (40%) or continued storage (23%). Of 110 recipients that did not use their remaining 455 embryos, 62 (56%) donated 280 embryos to other infertile couples, 6 (6%) donated 31 embryos for research, and 42 (38%) discarded 144 embryos. CONCLUSION(S): In our patient population, a higher proportion of patients with infertility ultimately used or stored their cryopreserved embryos for future reproduction compared with donor oocyte recipients. However, recipients were much more likely to donate to other infertile couples and less likely to discard their remaining embryos compared with patients.


Asunto(s)
Criopreservación/estadística & datos numéricos , Destinación del Embrión/estadística & datos numéricos , Transferencia de Embrión/estadística & datos numéricos , Infertilidad Femenina/epidemiología , Donación de Oocito/estadística & datos numéricos , Donantes de Tejidos/estadística & datos numéricos , Conducta de Elección , Femenino , Fertilización In Vitro/estadística & datos numéricos , Humanos , Embarazo , Estudios Retrospectivos
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