When the first successful delivery following in vitro fertilization and embryo transfer was reported in 1978, oocyte aspiration was performed laparoscopically under general anesthesia. Since 1985, almost all IVF centers have collected oocytes using transvaginal ultrasound-directed methods, since these are the easiest, most accurate and most acceptable methods to patients. Color Doppler ultrasonography is recommended to decrease blood loss during oocyte aspiration. Embryos are gently, slowly and transcervically expelled into the uterine cavity, with the patient in a lithotomy position. This basic method has remained unchanged since the first descriptions. Relatively important factors for successful embryo transfer include removal of hydrosalpinges, absence of blood or mucus on catheter, catheter type, avoidance of fundus contact, avoiding tenaculum, removal of all mucus, ultrasonography of cavity before puncture, leaving the catheter in place for 1 min, 30-min bed rest, trial transfer, ultrasonographic monitoring and antiprostaglandin administration to prevent uterine contractions.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 22 • No. 1