PGD胚胎切片可能對正常胚胎產生一定程度風險
一正常胚胎經由PGD後, 可能造成某程度傷害, 其著床率反而下降

Fertil Steril. 2016 Feb 3. pii: S0015-0282(16)00076-5. doi: 10.1016/j.fertnstert.2016.01.035. [Epub ahead of print]

Examining potential reasons why euploid blastocysts do not always implant. Part 1. Optimizing the culture environment and embryo manipulation to maintain viability.

Swain JE1, Carrell D2, Cobo A3, Meseguer M3, Rubio C4, Smith GD5.

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Abstract

With increased use of comprehensive chromosome screening (CCS), the question remains as to why some practices do not experience the same high levels of clinical success after implementation of the approach. Indeed, the debate surrounding the efficacy and usefulness of blastocyst biopsy and CCS continues. Importantly, several variables impact the success of an assisted reproductive technology cycle. Transfer of a euploid embryo is but one factor in an intricate system that requires numerous steps to occur successfully. Certainly, the culture environment and the manipulations of the embryo during its time in the laboratory can impact its reproductive potential. Environmental stressors ranging from culture media to culture conditions and even culture platform can impact biochemical, metabolic, and epigenetic patterns that can affect the developing cell independent of chromosome number. Furthermore, accompanying procedures, such as biopsy and vitrification, are complex and, when performed improperly, can negatively impact embryo quality. These are areas that likely still carry room for improvement within the IVF laboratory.