biostudies-literatureUnknown2(1)Larue L<h4>Objective</h4>To evaluate an embryo transfer strategy for difficult transfers (DiTs).<h4>Design</h4>Prospective, nonrandomized, observational, cohort study.<h4>Setting</h4>A hospital fertility center in France.<h4>Patients</h4>Data were collected on all embryo transfers conducted using the strategy between February 2014 and February 2020.<h4>Interventions</h4>Anatomical characteristics that could cause DiT were identified by transvaginal ultrasound and the catheter was adapted accordingly. Transfer was guided by transvaginal ultrasound. After passage through the cervix, a rest period was introduced to allow any contractions to stop before embryo deposition in the uterus.<h4>Main outcome measures</h4>The primary criterion was the percentage of pregnancies per transfer (P/T) after an easF&S reports43-49https://www.ebi.ac.uk/biostudies/studies/S-EPMC8244391biostudies-literatureEvaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers.PMC8244391Moulin JCassuto NGBernard LBouret DLarue LKeromnes GMassari AfalseEvaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers.<h4>Objective</h4>To evaluate an embryo transfer strategy for difficult transfers (DiTs).<h4>Design</h4>Prospective, nonrandomized, observational, cohort study.<h4>Setting</h4>A hospital fertility center in France.<h4>Patients</h4>Data were collected on all embryo transfers conducted using the strategy between February 2014 and February 2020.<h4>Interventions</h4>Anatomical characteristics that could cause DiT were identified by transvaginal ultrasound and the catheter was adapted accordingly. Transfer was guided by transvaginal ultrasound. After passage through the cervix, a rest period was introduced to allow any contractions to stop before embryo deposition in the uterus.<h4>Main outcome measures</h4>The primary criterion was the percentage of pregnancies per transfer (P/T) after an eas2021-01-01T00:00:00Z2021 Mar2025-05-18T12:41:31.922Z2025-05-18T12:41:31.922ZS-EPMC82443913422327210.1016/j.xfre.2020.11.004