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     <dc:title xml:lang="fr">Comparaison de deux protocoles de soutien de phase lutéale dans les transferts d'embryon(s) congelé(s) en cycle substitué</dc:title>
     <dcterms:alternative xml:lang="en">Comparison of two luteal phase support protocols in frozen embryo transfer during hormone replacement cycles</dcterms:alternative>
     <dc:subject xml:lang="fr">Transfert d’embryon congelé</dc:subject><dc:subject xml:lang="fr">cycle substitué</dc:subject><dc:subject xml:lang="fr">soutien de phase lutéale</dc:subject><dc:subject xml:lang="fr">progestérone vaginale</dc:subject><dc:subject xml:lang="fr">dydrogestérone</dc:subject>
     <dc:subject xml:lang="en">Frozen embryo transfer</dc:subject><dc:subject xml:lang="en">hormonal replacement therapy</dc:subject><dc:subject xml:lang="en">luteal phase support</dc:subject><dc:subject xml:lang="en">progesterone</dc:subject><dc:subject xml:lang="en">dydrogesterone</dc:subject><tef:sujetRameau><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="029397316">Embryon humain‎--Cryoconservation</tef:elementdEntree>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027887995">Embryon humain‎--Transplantation</tef:elementdEntree><tef:subdivision autoriteSource="Sudoc" type="subdivisionDeSujet" autoriteExterne="027796841">Méthode comparative</tef:subdivision>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="02760635X">Fécondation in vitro</tef:elementdEntree>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="031488730">Phase lutéale </tef:elementdEntree>
					</tef:vedetteRameauNomCommun><tef:vedetteRameauNomCommun>
						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027493857">Progestérone</tef:elementdEntree>
					</tef:vedetteRameauNomCommun></tef:sujetRameau>
     <dcterms:abstract xml:lang="fr">Il n'existe actuellement aucune recommandation pour l'utilisation de la progestérone en soutien de phase lutéale lors des transferts d'embryons congelés en cycle substitué. Dans notre centre, nous avons comparé deux protocoles de soutien de phase lutéale : l'un avec progestérone vaginale seule, commencée à J1 (équivalent au lendemain de la fécondation), et l'autre combinant progestérone vaginale et dydrogestérone orale, débutée à J0 (jour de la fécondation). Le taux de naissances vivantes était significativement plus élevé avec le protocole incluant la dydrogestérone orale sans différence notable sur le taux de fausses couches spontanées. Nous n’avons également pas retrouvé de différence sur les issues de grossesse (pathologie hypertensive gestationnelle, diabète gestationnel, malformations foetales, terme et poids de naissance). Ainsi, débuter le traitement à J0 avec une combinaison de progestérone vaginale et dydrogestérone orale pourrait améliorer les taux de naissances vivantes, sans pouvoir distinguer l'effet spécifique de chaque facteur.</dcterms:abstract>
     <dcterms:abstract xml:lang="en">There is currently no guideline for the use of progesterone for luteal phase support during frozen embryo transfers in hormonal replacement therapy (HRT) cycle. In our center, we compared two luteal phase support protocols : one with vaginal progesterone alone, started at Day 1 (equivalent to the day after fertilization), and the other combining vaginal progesterone and oral dydrogesterone, started at Day 0 (day of fertilization). The live-birth rate was significantly higher with the protocol including oral dydrogesterone, with no significant difference in the spontaneous miscarriage rate. We also found no difference in pregnancy outcomes (gestational hypertensive pathology, gestational diabete, fetal malformations, term and birth weight). Thus, starting treatment at Day 0 with a combination of vaginal progesterone and oral dydrogesterone could improve live-birth rates, without being able to distinguish the specific effect of each factor.</dcterms:abstract>
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       <tef:nom>Calonnec</tef:nom>
       <tef:prenom>Clémentine</tef:prenom>
       
       <tef:dateNaissance>1997-03-27</tef:dateNaissance>
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                            <tef:thesis.degree.discipline xml:lang="fr">Médecine</tef:thesis.degree.discipline>
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