Embryo transfer: how to ensure correct placement in utero.

摘要

A review of current literature (1990-2000) was undertaken to identify factors that are important in the correct placement of embryos in utero. Although there are no absolute prerequisites, ultrasound monitoring to ensure correct catheter placement, pretreatment assessment of the cervical canal, minimization of trauma, avoidance of mucus and the use of a 'soft' catheter are all considered important factors in this process. Early patient mobilization after the transfer procedure has not been shown to influence the outcome. The establishment of a benchmark against which to evaluate individual performance and participation in 'refresher courses' if indicated will help to maximize the implantation rates of the assisted reproductive technology programme as a whole.