Male partner screening before in vitro fertilization: preselecting patients who require intracytoplasmic sperm injection with the sperm penetration assay

Unexplained Male infertility: diagnosis and Management

“…One study revealed that 34.1% of patients with UMI scored less than 10% ova penetrated (128). The SPA is highly sensitive as it has been shown to be positively correlated with IVF fertilization rates as well as achievement of pregnancy in patients with UMI, and practical, as it uses readily available hamster oocytes rather than human ones (69,129,130).…”

Comparison of 5% and ambient oxygen during days 3–5 of in vitro culture of human embryos

“…Standard IVF microdrop insemination was performed when patients had a normal sperm penetration assay (SPA) result (20). Standard IVF insemination was performed by adding 125,000-300,000 progressively motile spermatozoa to each 50 mL droplet containing the oocyte.…”

Methods of Assessment of Cryopreserved Semen

“…The application of the zona-free hamster oocyte assay has been used to assess the fertility of men (Freeman et al, 2001; ) and domestic animals (Cormier et al, 1997;De los Reyes et al, 2009;Hewitt & England, 1997;Maxwell et al, 1996;). The OPT is a less time-consuming technique than in vitro fertilization (IVF) test, because oocytes can be immatured, and after evaluation are not further subjected to development.…”