Cleavage stage biopsy significantly impairs human embryonic implantation potential while blastocyst biopsy does not A randomized and paired clinical trial

Tuesday, April 9, 2013
A paired randomized trial demonstrated a 39% relative reduction in implantation rates of embryos after cleavage-stage biopsy. In contrast, blastocyst biopsy had no adverse effect.

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Oocyte vitrification does not increase the risk of embryonic aneuploidy or diminish the implantation potential of blastocysts created after intracytoplasmic sperm injection: a novel, paired randomized controlled trial using DNA fingerprinting

Friday, June 8, 2012
Using a novel, paired study design, this RCT demonstrates that blastocysts derived from previously vitrified oocytes are not at an increased risk of aneuploidy and have equivalent reproductive potential.

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