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Embryo transfer (ET) is the final procedure during assisted reproductive treatments (ART). Despite all the efforts on improving ART results, ET has changed little overtime [1]. Although embryo implantation is still not fully understood, some evidences suggest the impact of ET technique on the implantation process [2], impacting the reproductive outcomes [1, 3]. Several factors have recently been associated with better results of ET procedure: the ease of transfer [1], physician’s experience [4], type of catheter, and the use of ultrasound (US) guidance [3]. Moreover, even though ET is an important process, its technique is rarely described in clinical trials [5], reducing the possibility of standardization and compromising the reproducibility of studies. |
