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Effects of laser polar-body biopsy on embryo quality.

Abstract：

OBJECTIVE:To evaluate the effect of laser polar-body biopsy (PBB) for preimplantation genetic diagnosis on embryo quality. STUDY DESIGN:Retrospective case-control analysis. The quality of 145 embryos after PBB was compared to 276 embryos of the same group of women without biopsy. SETTING:University-based tertiary-care medical center. PATIENT(S):Women with inherited genetics disease. INTERVENTION(S):Laser PBB of IVF embryos for genetic diagnosis. MAIN OUTCOME MEASURE(S):The study and control embryos were compared for fertilization rate, pronuclear grading, and cleavage-stage parameters on days 1, 2, and 3 after oocyte retrieval. RESULT(S):The study embryos demonstrated higher rates of cleavage arrest (3.6% vs. 0.7%), higher rate of significant fragmentation on day 2 (9.5% vs. 3.0%), and lower rate of good cleavage embryos on day 2 (69.1% vs. 78.4%) compared with control embryos. On day 3, the study embryos had lower cleavage rates (six or more blastomeres; 56.5% vs. 74.5%), higher fragmentation (11.7% vs. 3.9%), higher rate of embryos presenting inferior cleavage pattern (57.2% vs. 38.5%), and lower mean blastomere number (5.8 ± 2.1 vs. 6.6 ± 1.9) compared with control embryos. CONCLUSION(S):Polar-body biopsy may have a negative effect on embryo quality.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Levin I,Almog B,Shwartz T,Gold V,Ben-Yosef D,Shaubi M,Amit A,Malcov M

doi

10.1016/j.fertnstert.2012.02.008

subject

Has Abstract

pub_date

2012-05-01 00:00:00

pages

1085-8

issue

5

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(12)00222-1

journal_volume

97

pub_type

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