Table 6. Comparison of IVF Cycles using either Frozen or Fresh TESE Samples.

	Frozen TESE Sample	Fresh TESE Sample
No. Retrievals	114	21
No. Retrievals with Obstructive Azoospermia	70 (61.4%)	2 (9.5%)
Mean No. Mature Oocytes	9.0±0.50	10.4±1.1
Mean No. 2PN	5.6±0.40	4.9±0.88
Fertilization Rate	585/945 (61.9%)a	78/167 (46.7%)a
Mean No. Embryos Transferred	2.3±0.10	2.5±0.24
No. Cycles with Embryo Transfer	98 (86%)	13 (62%)
Implantation Rate	58/225 (25.8%)	8/33 (24.2%)
Clinical Pregnancies per Embryo Transfer	38/98 (38.8%)	5/13 (38.5%)
Delivery Rate per ET	30/98 (30.6%)	4/13 (30.8%)
Mean age of Female partner	33.3±0.49	32.0±0.90
Mean age of Male partner	39.9±0.84	36.6±1.2

^ap = 0.0003.