Successful pregnancy after oocyte activation by a calcium ionophore for a patient with recurrent intracytoplasmic sperm injection failure, with an assessment of oocyte activation and sperm centrosomal function using bovine eggs

We report a successful pregnancy after ICSI with AOA using a calcium ionophore, after critical cytologic analyses of the FF eggs. Furthermore, sperm centrosomal function was low, indicating that sperm's ability to process the events of fertilization after the oocyte activation was poor in this patient.