
TY  - JOUR
A1  - O'Neill, C 
A1  - Ryan, JP 
A1  - Catt, JW 
A1  - Pike, IL 
A1  - Krzyminska, UB 
T1  - Injection of multiple sperm into the perivitelline space as a treatment of male infertility
JF  - Reproduction, Fertility and Development
JO  - Reprod. Fertil. Dev.
Y1  - 1994
VL  - 6
IS  - 1
SP  - 51
EP  - 55
KW  - 
UR  - https://doi.org/10.1071/RD9940051 
N2  - This paper reports the outcome of 274 treatment cycles using multiple injection of sperm into the perivitelline space as a treatment of male factor infertility. A total of 170 couples underwent this form of treatment; 59.1% of cycles had at least one oocyte normally fertilized with an overall normal fertilization rate of 17.2%. The development rate of normally fertilized embryos was high (98.5%) and resulted in a pregnancy rate (positive human chorionic gonadotrophin 18 days after embryo transfer) of 21.4% per embryo transfer procedure (a maximum of 3 embryos were transferred per procedure). The relationship between the number of sperm injected and the fertilization rate and other factors affecting the outcome are discussed. 
ER  -

