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Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.
Original Research
A case whose outcome is consistent with the possibility that if slow embryo cleavage is related to a male factor the prognosis is far greater than if it was related to an egg factor
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The University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School at Camden, Cooper Hospital/University Medical Center, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology & Infertility, Camden, NJ (USA)
Clin. Exp. Obstet. Gynecol. 2011, 38(3), 201–202;
Published: 10 September 2011
Abstract
Purpose: To determine if the male partner’s sperm can be the cause of embryos with slow cleavage. Methods: Retrospective evaluation of shared donor oocyte pairs where two women shared one pool of oocytes from an oocyte donor. Results: Only one woman formed embryos that were all < 6 blastomeres in 376 paired cycles (total 752). With one previous IVF cycle where she formed only two embryos (5-cell and 4-cell) this woman had in five embryos formed all < 6-cells and four of five only 4-cells on day 3. In contrast, the woman who was donating half of the oocytes but had her half fertilized by her own male partner’s sperm had only one of three with < 6-cells. Conclusions: This study suggests that rarely the sperm may be the reason for slow cleaving embryos.
Keywords
Slow embryo cleavage
High implantation rates
Sperm