Using arrays to screen embryos during an in vitro fertilization cycle can improve pregnancy rates, according to a new study.

Pacific Reproductive Center, a Torrance, Calif.-based IVF clinic, blindly randomized 103 IVF cycles. In a treatment group of 55 cycles, the center used BlueGnome 24sure comparative genomic hybridization arrays to screen day-5 biopsies for aneuploid chromosomes prior to implantation of a single euploid embryo, while in a control group of 48 cycles, single embryos were selected using existing morphological scorecard approaches.

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