title: ICSI treatment of severe male infertility can achieve prospective embryo quality compared with IVF of fertile donor sperm on sibling oocytes.
abstract: Azoospermia, cryptozoospermia and necrospermia can markedly decrease the ability of males to achieve pregnancy in fertile females. However, patients with these severe conditions still have the option to be treated by intracytoplasmic sperm injection (ICSI) to become biological fathers. This study analyzed the fertilization ability and the developmental viabilities of the derived embryos after ICSI treatment of the sperm from these patients compared with in vitro fertilization (IVF) treatment of the proven-fertile donor sperm on sibling oocytes as a control. On the day of oocyte retrieval, the number of sperm suitable for ICSI collected from two ejaculates or testicular sperm extraction was lower than the oocytes, and therefore, excess sibling oocytes were treated by IVF with donor sperm. From 72 couples (73 cycles), 1117 metaphase II oocytes were divided into 512 for ICSI and 605 for IVF. Compared with the control, husbands' sperm produced a lower fertilization rate in nonobstructive azoospermia (65.4% vs 83.2%; P< 0.001), crytozoospermia (68.8% vs 75.5%; P< 0.05) and necrospermia (65.0% vs 85.2%; P< 0.05). The zygotes derived in nonobstructive azoospermia had a lower cleavage rate (96.4% vs 99.4%; P< 0.05), but the rate of resultant good-quality embryos was not different. Analysis of the rates of cleaved and good-quality embryos in crytozoospermia and necrospermia did not exhibit a significant difference from the control. In conclusion, although the sperm from severe male infertility reduced the fertilization ability, the derived embryos had potential developmental viabilities that might be predictive for the expected clinical outcomes.
authors: Ju-Fen
authors: JF
authors: Zheng
authors: Xiao-Bao
authors: XB
authors: Chen
authors: Lei-Wen
authors: LW
authors: Zhao
authors: Min-Zhi
authors: MZ
authors: Gao
authors: Jie
authors: J
authors: Peng
authors: Xian-Qin
authors: XQ
authors: Qu
authors: China National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, SIPPR, Shanghai, China, .
authors: Hui-Juan
authors: HJ
authors: Shi
authors: China National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, SIPPR, Shanghai, China; Sydney Centre for Regenerative and Developmental Medicine, Kolling Institute for Medical Research, Sydney Medical School, University of Sydney, St. Leonards, NSW, Australia, .
authors: Xing-Liang
authors: XL
authors: Jin
mesh_terms: D000328:Adult; D004624:Embryo Transfer; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000628:therapy; D008297:Male; D009865:Oocytes / Q000502:physiology*; D011247:Pregnancy; D018873:Pregnancy Rate; D035781:Siblings; D020554:Sperm Injections, Intracytoplasmic; D014019:Tissue Donors
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