sperm chromatin integrity has been being recognized as an important factor in male fertility. during normal fertilization, high quality sperm with intact chromatin are selected through natural selection in journey from vagina to fallopian tube. however, using assisted reproductive techniques, particularly icsi, the natural selection is bypassed. therefore sperm with dna breakage have the opport...

conclusions sperm quality extracted by percutaneous pesa and tese procedures increases fertility outcomes compared to naturally ejaculated sperm in men with idiopathic co. more specifically, embryo quality, which is most relevant to fertility outcome, improved when surgically extracted sperm was used for icsi. results there was a significant difference in fertilization rate, embryo quality, imp...

Background Transfer of micro-Injected oocytes into fallopian tubes is an alternative procedure for IVF-ET with a similar success rate. This could be either done immediately after ovum pick-up microinjected oocytes intrafallopian transfer (MIFT) or after a time interval zygote intrafallopian transfer (ZIFT). This study was designed to compare the outcomes of the two procedures. MaterialsAndMetho...