Fresh Gametes Might Get Better Clinical Results than Cryopreserved Sperm or Oocytes for Nonobstructive Azoospermia Patients Underwent micro-TESE

Background: micro-testicular sperm extraction (TESE) has been the first choice for Nonobstructive azoospermia (NOA) patients its higher retrieval rate under microscope, meanwhile, or oocyte cryopreservation are widely applied in in-vitro fertilization (IVF) treatment. But few researches have systematically explored effect of and one study. Methods: we retrospectively collected analyzed data pregnancy who underwent micro-TESE using fresh vitrified-warmed gametes our center to assess cryopreservation. Results: compared clinical results NOA after micro-TESE, respectively. We found that rates good-quality embryo were 52.37 ± 24.25% 64.00 36.18%, while these vitrified 46.00 22.70% 68.00 34.6%, 45.51 25.19% 38.57 31.08%, respectively; pregancy implantation 50.0% 32.5%, oocytes 39.5% 32.9%, 37.5% 24.1%, The embyo gamete above vitrified, but there was no statistic difference. live birth than (47.1% verse 32.6%, 31.3%). Conclusions: gametes. Fresh showed better outcomes micro-TESE-ICSI treatment patients.