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ABSTRACT: Purpose
To evaluate the association between progesterone (P) level on the day of trigger and time to blastulation in IVF cycles.Methods
This was a retrospective cohort study with autologous IVF cycles performed at our Institution from January 2019 to December 2021. A total of 1109 IVF cycles were included. The primary outcome was to compare time to blastulation in terms of percentage of expanded (grade 3) blastocysts on day 5 according to progesterone level at trigger.Results
A total of 3517 blastocysts were analyzed. After dividing progesterone level in quartiles (Q1, P < 0.50 ng/ml; Q2 0.50 ng/ml ≤ P ≤ 0.78 ng/ml; Q3, 0.79 ng/ml ≤ P ≤ 1.15 ng/ml; Q4, P > 1.15 ng/ml), we observed a delay in blastocyst development according to the increasing level of progesterone at trigger (analysis by rank, P-value = 0.01). After adjusting for confounding factors at the multivariate analysis, the percentage of day 5 blastocysts was reduced for Q3 (- 13.8%, 95% CI from - 20.5 to - 7.0%, p < 0.001) and Q4 (- 7.7%, 95% CI from - 15.5 to 0.0%, p = 0.05) compared to Q1 (reference).Conclusions
Progesterone levels on day of trigger correlate to the percentage of expanded (grade 3) blastocysts on day 5 and a delayed blastocyst development day 5 is expected for high progesterone levels.
SUBMITTER: Villanacci R
PROVIDER: S-EPMC9935760 | biostudies-literature | 2023 Feb
REPOSITORIES: biostudies-literature
Villanacci Roberta R Buzzaccarini Giovanni G Marzanati Daria D Vanni Valeria Stella VS De Santis Lucia L Alteri Alessandra A Candiani Massimo M Pagliardini Luca L Papaleo Enrico E
Journal of assisted reproduction and genetics 20221221 2
<h4>Purpose</h4>To evaluate the association between progesterone (P) level on the day of trigger and time to blastulation in IVF cycles.<h4>Methods</h4>This was a retrospective cohort study with autologous IVF cycles performed at our Institution from January 2019 to December 2021. A total of 1109 IVF cycles were included. The primary outcome was to compare time to blastulation in terms of percentage of expanded (grade 3) blastocysts on day 5 according to progesterone level at trigger.<h4>Results ...[more]