OBJECTIVE: To compare the outcomes of intracytoplasmic sperm injection (ICSI) and in vitro fertilization (IVF) with fresh and cryopreserved testicular spermatozoa in patients with obstructive and nonobstructive azoospermia. DESIGN: Retrospective analysis of consecutive ICSI cycles. SETTING: Large urban reproductive medicine program. PATIENT(S): Twenty-nine patients with obstructive and nonobstructive azoospermia undergoing testicular sperm extraction for a total of 46 IVF-ICSI cycles (12 fresh, 34 frozen). INTERVENTION(S): Testicular sperm extraction, cryopreservation, and IVF-ICSI with fresh or frozen-thawed spermatozoa. MAIN OUTCOME MEASURE(S): Fertilization rates, embryo cleavage rates, embryo implantation rates, clinical pregnancy rates per cycle and per embryo transfer, and delivery and spontaneous abortion rates. RESULT(S): No statistically significant differences were noted in any of the parameters examined between IVF-ICSI cycles from fresh or frozen-thawed testicular spermatozoa. Fertilization rates were 56% with fresh vs. 61% with frozen-thawed testicular sperm, cleavage rates 92% vs. 95%, implantation rates 26% vs. 17%, clinical pregnancy rates per cycle 33% vs. 41%, and pregnancy rates per embryo transfer 33% vs. 45%, respectively. Delivery rates were 75% with fresh vs. 69.2% with frozen-thawed testicular sperm, and spontaneous abortion rates 25% and 30.8%, respectively. CONCLUSION(S): No differences were found in IVF-ICSI outcomes between cryopreserved and fresh testicular sperm. In addition, cryopreservation provides several advantages for the patients and reproductive team.
OBJECTIVE: To compare the outcomes of intracytoplasmic sperm injection (ICSI) and in vitro fertilization (IVF) with fresh and cryopreserved testicular spermatozoa in patients with obstructive and nonobstructive azoospermia. DESIGN: Retrospective analysis of consecutive ICSI cycles. SETTING: Large urban reproductive medicine program. PATIENT(S): Twenty-nine patients with obstructive and nonobstructive azoospermia undergoing testicular sperm extraction for a total of 46 IVF-ICSI cycles (12 fresh, 34 frozen). INTERVENTION(S): Testicular sperm extraction, cryopreservation, and IVF-ICSI with fresh or frozen-thawed spermatozoa. MAIN OUTCOME MEASURE(S): Fertilization rates, embryo cleavage rates, embryo implantation rates, clinical pregnancy rates per cycle and per embryo transfer, and delivery and spontaneous abortion rates. RESULT(S): No statistically significant differences were noted in any of the parameters examined between IVF-ICSI cycles from fresh or frozen-thawed testicular spermatozoa. Fertilization rates were 56% with fresh vs. 61% with frozen-thawed testicular sperm, cleavage rates 92% vs. 95%, implantation rates 26% vs. 17%, clinical pregnancy rates per cycle 33% vs. 41%, and pregnancy rates per embryo transfer 33% vs. 45%, respectively. Delivery rates were 75% with fresh vs. 69.2% with frozen-thawed testicular sperm, and spontaneous abortion rates 25% and 30.8%, respectively. CONCLUSION(S): No differences were found in IVF-ICSI outcomes between cryopreserved and fresh testicular sperm. In addition, cryopreservation provides several advantages for the patients and reproductive team.
Authors: L Dirnfeld; M Paz; D Yshai; I Calderon; S Lahav-Baratz; M Koifman; H Shiloh; H Abramovici; D Bider Journal: J Assist Reprod Genet Date: 2003-06 Impact factor: 3.412
Authors: A Ferlin; A E Calogero; C Krausz; F Lombardo; D Paoli; R Rago; C Scarica; M Simoni; C Foresta; V Rochira; E Sbardella; S Francavilla; G Corona Journal: J Endocrinol Invest Date: 2022-01-24 Impact factor: 4.256