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  • Kenichiro Hiraoka, Kaori Hiraoka, Masayuki Kinutani, Kazuo Kinutani
  • Biology, Medicine
  • Human reproduction
  • 2004 (First Publication: 1 December 2004)
  • BACKGROUND Manual puncture of the trophectoderm of human blastocysts with a needle before vitrification increases their survival rate, but the embryos take a long time to re-expand. This studyContinue Reading
  • Kenichiro Hiraoka, Kaori Hiraoka, Masayuki Kinutani, Kazuo Kinutani
  • Biology, Medicine
  • Human reproduction
  • 2004 (First Publication: 12 February 2004)
  • This case report describes a successful pregnancy after vitrification of a human hatched blastocyst. A 31-year-old woman, after failed stimulated and thaw cycles, underwent short-treatment protocolContinue Reading
  • Kenichiro Hiraoka, Megumi Fuchiwaki, +4 authors Kazuo Kinutani
  • Medicine, Biology
  • Journal of Assisted Reproduction and Genetics
  • 2008 (First Publication: 1 April 2008)
  • PurposeTo 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 cyclesContinue Reading
  • Kenichiro Hiraoka, Kaori Hiraoka, +4 authors Kazuo Kinutani
  • Biology, Medicine
  • Journal of Assisted Reproduction and Genetics
  • 2009 (First Publication: 1 October 2009)
  • PurposeThe aim of this study was to determine if the size of zona pellucida thinning area by laser assisted hatching could affect the rates of pregnancy and implantation for vitrified-warmed embryoContinue Reading
  • Kenichiro Hiraoka, Kaori Hiraoka, Masayuki Kinutani, Kazuo Kinutani
  • Biology, Medicine
  • The Journal of reproductive medicine
  • 2006 (First Publication: 1 March 2006)
  • BACKGROUND Vitrification has evolved into an established technique for cryopreservation of human blastocysts. However, it is still unclear whether the blastocysts developed from frozen embryos can beContinue Reading
  • Kenichiro Hiraoka, Kaori Hiraoka, +4 authors Kazuo Kinutani
  • Biology, Medicine
  • Journal of Assisted Reproduction and Genetics
  • 2009 (First Publication: 1 July 2009)
  • PurposeTo report a successful delivery after the transfer of a re-cryopreserved day-7 hatched blastocyst.Methods and ResultsA 30-year-old woman underwent a long-treatment protocol for ovarianContinue Reading