Authors: Kenichiro Hiraoka Megumi Fuchiwaki Kaori Hiraoka Toshitaka Horiuchi Tomoyo Murakami Masayuki Kinutani Kazuo Kinutani
Publish Date: 2008/03/26
Volume: 25, Issue: 4, Pages: 129-135
Abstract
To evaluate the effect of the size of zona pellucida opening by laser assisted hatching for frozen cleaved embryo that were thawed after both fresh and frozen cleaved embryo transfer cycles failed and were cultured to blastocyst after thawing in patients with multiple implantation failuresOf 101 consecutive procedures October 2003 to June 2006 30 patients declined to perform assisted hatching and were selected as control group 40 patients had 40 μm opening of the zona October 2003 to January 2005 31 patients had 50 of the zona opening February 2005 to June 2006
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