Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers

Objective: To evaluate an embryo transfer strategy for difficult transfers (DiTs). Design: Prospective, nonrandomized, observational, cohort study Setting: A hospital fertility center in France. Patient(s): Data were collected on all embryo transfers conducted using the strategy between February 201...

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Main Authors: Lionel Larue, M.D., Ph.D., Laure Bernard, M.D., Julie Moulin, M.D., Anne Massari, M.D., Nino-Guy Cassuto, Ph.D., Dominique Bouret, M.D., Gwenola Keromnes, M.D.
Format: Article
Language:English
Published: Elsevier 2021-03-01
Series:F&S Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666334120301239
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author Lionel Larue, M.D., Ph.D.
Laure Bernard, M.D.
Julie Moulin, M.D.
Anne Massari, M.D.
Nino-Guy Cassuto, Ph.D.
Dominique Bouret, M.D.
Gwenola Keromnes, M.D.
author_facet Lionel Larue, M.D., Ph.D.
Laure Bernard, M.D.
Julie Moulin, M.D.
Anne Massari, M.D.
Nino-Guy Cassuto, Ph.D.
Dominique Bouret, M.D.
Gwenola Keromnes, M.D.
author_sort Lionel Larue, M.D., Ph.D.
collection DOAJ
description Objective: To evaluate an embryo transfer strategy for difficult transfers (DiTs). Design: Prospective, nonrandomized, observational, cohort study Setting: A hospital fertility center in France. Patient(s): Data were collected on all embryo transfers conducted using the strategy between February 2014 and February 2020. Intervention(s): 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. Main Outcome Measure(s): The primary criterion was the percentage of pregnancies per transfer (P/T) after an easy transfer (EaT) or a DiT. The secondary criteria included the anatomical causes of DiT and the patients’ levels of discomfort. Result(s): Of 2,046 transfers, 257 (12%) were DiTs: minor difficulties (n = 152; 7.4%), major difficulties (n = 96; 4.7%), very significant difficulties (n = 7; 0.3%), or impossible (n = 2; 0.1%). The most common causes of DiTs were endocervical crypts (54%), tortuous cervical canal (36%), and marked uterine anteversions (30%). Several causes were often responsible for DiTs. There was no statistically significant difference in the P/T between the EaTs (n = 1,789, 41%) and all degrees of DiT (n = 257, 37%). In addition, there was no statistically significant difference between the level of patient-reported discomfort in the EaT and DiT groups. Conclusion(s): This study demonstrated that an adapted embryo transfer strategy, monitored by transvaginal ultrasound, led to similar pregnancy rates regardless of whether the transfer was easy or difficult.
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spelling doaj.art-52025d1d2d4b404f9c957cb784b355fa2022-12-21T21:33:03ZengElsevierF&S Reports2666-33412021-03-01214349Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfersLionel Larue, M.D., Ph.D.0Laure Bernard, M.D.1Julie Moulin, M.D.2Anne Massari, M.D.3Nino-Guy Cassuto, Ph.D.4Dominique Bouret, M.D.5Gwenola Keromnes, M.D.6Centre de Fertilité - Groupe Hospitalier Diaconesses Croix Saint Simon, Paris, France; Reprint requests: Lionel Larue, M.D., Ph.D., Centre de Fertilité – Groupe Hospitalier Diaconesses Croix Saint Simon, 18, Rue du Sergent Bauchat, 75012 Paris, France.Centre de Fertilité - Groupe Hospitalier Diaconesses Croix Saint Simon, Paris, FranceCentre de Fertilité - Groupe Hospitalier Diaconesses Croix Saint Simon, Paris, FranceCentre de Fertilité - Groupe Hospitalier Diaconesses Croix Saint Simon, Paris, FranceLaboratoire Drouot, Paris, FranceLaboratoire Drouot, Paris, FranceCentre de Fertilité - Groupe Hospitalier Diaconesses Croix Saint Simon, Paris, FranceObjective: To evaluate an embryo transfer strategy for difficult transfers (DiTs). Design: Prospective, nonrandomized, observational, cohort study Setting: A hospital fertility center in France. Patient(s): Data were collected on all embryo transfers conducted using the strategy between February 2014 and February 2020. Intervention(s): 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. Main Outcome Measure(s): The primary criterion was the percentage of pregnancies per transfer (P/T) after an easy transfer (EaT) or a DiT. The secondary criteria included the anatomical causes of DiT and the patients’ levels of discomfort. Result(s): Of 2,046 transfers, 257 (12%) were DiTs: minor difficulties (n = 152; 7.4%), major difficulties (n = 96; 4.7%), very significant difficulties (n = 7; 0.3%), or impossible (n = 2; 0.1%). The most common causes of DiTs were endocervical crypts (54%), tortuous cervical canal (36%), and marked uterine anteversions (30%). Several causes were often responsible for DiTs. There was no statistically significant difference in the P/T between the EaTs (n = 1,789, 41%) and all degrees of DiT (n = 257, 37%). In addition, there was no statistically significant difference between the level of patient-reported discomfort in the EaT and DiT groups. Conclusion(s): This study demonstrated that an adapted embryo transfer strategy, monitored by transvaginal ultrasound, led to similar pregnancy rates regardless of whether the transfer was easy or difficult.http://www.sciencedirect.com/science/article/pii/S2666334120301239Embryo transferdifficult transferin vitro fertilizationtransvaginal ultrasoundpersonalized healthcare
spellingShingle Lionel Larue, M.D., Ph.D.
Laure Bernard, M.D.
Julie Moulin, M.D.
Anne Massari, M.D.
Nino-Guy Cassuto, Ph.D.
Dominique Bouret, M.D.
Gwenola Keromnes, M.D.
Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers
F&S Reports
Embryo transfer
difficult transfer
in vitro fertilization
transvaginal ultrasound
personalized healthcare
title Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers
title_full Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers
title_fullStr Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers
title_full_unstemmed Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers
title_short Evaluation of a strategy for difficult embryo transfers from a prospective series of 2,046 transfers
title_sort evaluation of a strategy for difficult embryo transfers from a prospective series of 2 046 transfers
topic Embryo transfer
difficult transfer
in vitro fertilization
transvaginal ultrasound
personalized healthcare
url http://www.sciencedirect.com/science/article/pii/S2666334120301239
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