4.6 Article

Individualized luteal phase support using additional oral dydrogesterone in artificially prepared frozen embryo transfer cycles: is it beneficial?

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REPRODUCTIVE BIOMEDICINE ONLINE
卷 46, 期 6, 页码 939-945

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ELSEVIER SCI LTD
DOI: 10.1016/j.rbmo.2023.02.007

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Arti ficially prepared cycles; Frozen embryo transfer; Individualized luteal phase support; Live birth rate; Miscarriage

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This retrospective cohort study aimed to investigate whether additional oral dydrogesterone supplementation improves reproductive outcomes in patients with low serum progesterone concentrations during frozen embryo transfer (FET) after artificial endometrial preparation. The study found that the live birth rate was comparable between patients who received additional oral dydrogesterone supplementation and those who continued with the routine protocol.
Research question: Does additional supplementation with oral dydrogesterone improve reproductive outcomes in patients with low serum progesterone concentrations on the day of frozen embryo transfer (FET) after artificial (HRT) endometrial preparation?Design: Retrospective, single-centre cohort study including 694 unique patients performing single blastocyst transfer in an HRT cycle. For luteal phase support, intravaginal micronized vaginal progesterone (MVP, 400 mg twice daily) was administered. Serum progesterone concentrations were assessed prior to FET and outcomes were compared among patients with normal serum progesterone (=8.8 ng/ml) continuing the routine protocol and patients with low serum progesterone (<8.8 ng/ml) who received additional oral dydrogesterone supplementation (10 mg three times daily) from the day after FET onwards. Primary outcome was live birth rate (LBR), with a multivariate regression model correcting for relevant confounders.Results: Normal serum progesterone concentrations were observed in 547/694 (78.8%) of patients who continued only MVP as planned, whereas low (<8.8 ng/ml) serum progesterone concentrations were detected in 147/694 (21.2%) patients who received additional oral dydrogesterone supplementation on top of MVP from the day after FET onwards. LBR was comparable between both groups: 37.8% for MVP-only versus 38.8% for MVP+OD (P = 0.84). The multivariate logistic regression model indicated that LBR was not significantly associated with the investigated approaches (adjusted odds ratio 1.01, 95% confidence interval 0.69-1.47, P = 0.97).

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