Table 3.

Time between intracytoplasmic sperm injection (ICSI) and second polar body extrusion, fertilization, and blastocyst development rates of embryos from good- and poor-quality rescued non-artificially activated (ROA) oocytes, respectively

	Extrusion	No extrusion
Number of good quality non-ROA oocytes	2	52
Mean time until extrusion	4:45 ± 21
1PN rate, n (%)	0 (0.0%)	1 (1.9%)
2PN rate, n (%)	2 (100.0%)	1 (1.9%)
3PN or higher rate, n (%)	0 (0.0%)	2 (3.9%)
0PN rate, n (%)	0 (0.0%)	48 (92.3%)
Blastocyst development rate, n (% per 2PN)	1 (50.0%)	1 (100.0%)
Good quality blastocyst development rate, n (% per 2PN)	0 (0.0%)	1 (0.0%)
Number of poor-quality non-ROA oocytes	2	19
Mean time until extrusion	6:30 ± 42
1PN rate, n (%)	1 (50.0%)	2 (10.5%)
2PN rate, n (%)	0 (0.0%)	2 (10.5%)
3PN or higher rate, n (%)	1 (50.0%)	7 (36.8%)
0PN rate, n (%)	0 (0.0%)	8 (42.1%)
Blastocyst development rate, n (% per 2PN)	-	0 (0.0%)
Good quality blastocyst development rate, n (% per 2PN)	-	0 (0.0%)

ICSI intracytoplasmic sperm injection, ROA rescue artificial oocyte activation