Evaluation of the Relationship Between Air Bubbles Depth and Pregnancy Rate in ICSI Cycles

Abstract

In vitro fertilisation (IVF) is a highly complex technique that involves the use of standardised protocols for controlled ovarian stimulation, oocyte retrieval under ultrasound guidance, fertilization of gametes in the laboratory, embryo culturing and embryo transfer. The ASRM and SART registry report annually the live birth rates. For IVF cycles, the success rate reported is 40.1% in women less than 35 years to 20.6% in women in the 41–42 year range.

ET is the last crucial step of IVF treatment. If poorly executed, all the efforts put into the treatment up until the ET can be ruined within minutes. During ET, the aim should be to meticulously and accurately place embryos within the uterus, to allow for proper implantation and fetal development at the site where the probability of implantation is the highest.

Variables associated with ET success or failure include US guidance, transfer catheter type, catheter-loading