title: [Improved implantation rate following embryo transfer in an in vitro fertilization program].
abstract: In spite of the efforts made in in-vitro fertilization and embryo transfer in recent years, little progress has so far been made with regard to the pregnancy rate. While embryo transfer rates of over 80% are now being attained, the pregnancy rate achieved with extracorporal fertilization in the majority of study groups is well under 20%. Between 1981 and May 1986, 1088 laparoscopies were performed in our study group with the aim of follicle puncture and subsequent in-vitro fertilization and embryo transfer. A total of 171 pregnancies resulted from 832 embryo transfers. The pregnancy rate has been increased since 1981 to 21.2% at present (1986). Since April 1986 we have been using a modified embryo transfer procedure: in 25 patients embryo transfer has been accomplished under barbiturate anesthesia. Twelve of these patients have become pregnant, i.e., 48% of the embryo transfers. There are signs that this embryo transfer method will lead to a distinct improvement in the pregnancy rate. An attempt should be made to confirm these provisional results in a larger collective.
mesh_terms: D015760:Alfentanil; D000768:Anesthesia, General; D004624:Embryo Transfer / Q000379:methods*; D005260:Female; D005283:Fentanyl / Q000031:analogs & derivatives; D005307:Fertilization in Vitro / Q000379:methods*; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011379:Prognosis; D013874:Thiopental
chemical_list: D015760:Alfentanil; D013874:Thiopental; D005283:Fentanyl
vernacular_title: Verbesserung der Implantationsrate nach Embryotransfer in einem In-vitro-Fertilisationsprogramm.