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BOOK TITLE: Principles and Practice of Assisted Reproductive Technology
Embryo transfer (ET) is the accurate and atraumatic deposition of embryos by means of an ET catheter, into the uterine cavity at an area with maximum implantation potential. This chapter aims to introduce the various aspects regarding ET and the evidence to optimize the results. Different types of ET are transvaginal transcervical, transvaginal transmyometrial, zygote intrafallopian transfer, and subendometrial embryo delivery. A good ET involves placement of good quality embryos in a primed endometrium, in the most atraumatic way, at the region of maximum implantation potential. A detailed discussion on factors affecting success of embryo transfer is also presented in this chapter. Embryo transfer catheters, popular commercially available embryo transfer catheters, fluid volume, and recent advances in the area of ET are also covered thoroughly in this chapter.