Increased Fertilization Rates after In Vitro Culture of Frozen-Thawed Testicular Immotile Sperm in Nonobstructive Azoospermic Patients

Table 3

ICSI results with frozen-thawed spermatozoa on the moment of ICSI in both groups (Group I, when spermatozoa reached some kind of motility and Group II, after culture, with the peaked). Values are mean ± SD.

	Group I (𝑛=40)	Group II (𝑛=24)	𝑃
Fertilization rate (%)	54	72	0.05
Range	42–75	68–92
Cleavage rate (%)	94	96	NS
Range	60–100	70–100
Grade 1,2 embryos	2,62	2,7	NS
Clinical pregnancy rate (%)	40	41,6	NS
	16/40	10/24
Range	20,8	25	NS
Implantation rate (%)
Deliveries	35	37,5	NS
	14/40	10/24