Evaluation of vitality in testicular and ejaculated sperm for intracytoplasmic sperm injection in the case of totally or initially immotile spermatozoa in the ejaculate

Kahraman S., Polat G., Ozgun O., Sozen E., Dirican K., Ozbicer T.

10th World Congress of In Vitro Fertilization and Assisted Reproduction, Vancouver, Canada, 24 - 28 May 1997, pp.591-594 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Vancouver
  • Country: Canada
  • Page Numbers: pp.591-594
  • Akdeniz University Affiliated: Yes


Totally immotile spermatozoa in the ejaculate is a good indication for intra cytoplasmic sperm injection (ICSI). However, low vitality of spermatozoa results in low fertilization and pregnancy rates. The high number of totally immotile sperm in the ejaculate is mostly thought to be degenerative due to the long duration of epididymal transport. Whereas totally immotile testicular spermatozoa are probably immotile and can still gain motility during maturation.