ABSTRACT
Mansour et al.17 showed that patients with >95% and <95% teratozoospermia had similar fertilization and pregnancy outcomes. Svalander et al.18, using the Tygerberg strict criteria to identify and compare three sperm morphology groups, also concluded that sperm morphology is not related to the outcome of ICSI. In a study carried out by Lundin et al.19, strict-criteria sperm morphology showed a significant correlation with fertilization in classical IVF, but not with ICSI fertilization and pregnancy outcome. Similar results were found by Høst 11, showing no predictive value of sperm cell morphology (strict criteria and WHO) and teratozoospermia index (TZI) for ICSI outcome. They also found, however, no predictive value for classical IVF either.
