ISSN:
1573-7330
Schlagwort(e):
in vitro fertilization
;
embryo transfer technique
;
cervix dilatation
;
pregnancy rate
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Beschreibung / Inhaltsverzeichnis:
Results The following observations were made. Retention of embryos in the transfer sets significantly reduced the pregnancy rate (P =0.015); catheters contaminated with blood and cervical mucus indirectly contributed to this effect by increasing the incidence of failed first transfer attempts. Even though cervical dilatations, if indicated by uterus sounding, were done 2 days before embryo transfer, no pregnancies were effected in these 18 cases (P =0.0001). Late transfers of embryos, due to delayed fertilization or slow cleavage rates, yielded a pregnancy rate of 10.5%.
Kurzfassung:
Conclusion The approach of immediately retransferring retained embryos does not solve the problem of reduced pregnancy rates in FFA cases. It is suggested that ET should be repeated 1 day later in FFA cases in an attempt to improve pregnancy rates.
Notizen:
Purpose This study derives from the observation that a correlation exists between failed first attempts (FFA) at embryo transfer caused by one or more embryos remaining in the catheter and reduced pregnancy rates (20.3 vs 3.0%). The aim of this study was to examine the relationship between failed first attempts at transfer and contamination of the transfer set; the related aspects of cervix dilatation and late embryo transfer were also investigated.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01204438
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