
TY  - JOUR
A1  - Gianaroli, L 
A1  - Magli, MC 
A1  - Ferraretti, AP 
A1  - Fortini, D 
A1  - Feliciani, E 
A1  - Fiorentino, A 
T1  - Biological factors affecting subzonal sperm microinjection results
JF  - Reproduction, Fertility and Development
JO  - Reprod. Fertil. Dev.
Y1  - 1994
VL  - 6
IS  - 1
SP  - 63
EP  - 66
KW  - 
UR  - https://doi.org/10.1071/RD9940063 
N2  - One hundred and sixteen couples with severe male factor infertility underwent 139 subzonal sperm microinjection cycles. In total, 1343 oocytes were microinjected, resulting in a fertilization rate of 24%, followed by a cleavage rate of 65%. In 26% of the zygotes, fertilization was delayed and embryos derived from these zygotes demonstrated a poor capacity for further growth and implantation. In 102 of 139 cycles (73%) embryo transfer was performed, resulting in 9 pregnancies. This study followed the fate of injected oocytes and early embryo development to investigate biological factors that influence the results of subzonal injection. 
ER  -

