title: Successful Oocyte Cryopreservation in Reproductive-Aged Cancer Survivors.
abstract: OBJECTIVE
  To demonstrate that oocyte cryopreservation is a feasible reproductive option for patients with cancer of childbearing age who require gonadotoxic therapies.
  
  
  METHODS
  This study is a university-based retrospective review of reproductive-aged cancer patient treatment cycles that included ovarian stimulation, transvaginal oocyte retrieval, oocyte cryopreservation, and, in some cases, subsequent oocyte thaw, in vitro fertilization, and embryo transfer. Outcome measures included ovarian stimulation response, number of oocytes retrieved, cryopreserved, and thawed, and pregnancy data.
  
  
  RESULTS
  From 2005 to 2014, 176 reproductive-aged patients with cancer (median age 31 years, interquartile range 24-36) completed 182 oocyte cryopreservation cycles. Median time between consult request and oocyte retrieval was 12 days (interquartile range 10-14). Median peak stimulation estradiol was 1,446 pg/mL (interquartile range 730-2,687); 15 (interquartile range 9-23) oocytes were retrieved and 10 (interquartile range 5-18) metaphase II oocytes were cryopreserved per cycle. Ten patients (11 cycles) have returned to attempt pregnancy with their cryopreserved oocytes. Among thawed oocytes, the cryopreservation survival rate was 86% (confidence interval [CI] 78-94%). Nine of 11 thaw cycles resulted in embryos suitable for transfer. The embryo implantation rate was 27% (CI 8-46%) and the live birth rate was 44% (CI 12-77%) per embryo transfer. Chance for live birth with embryos created from cryopreserved oocytes was similar between the patients with cancer in this study and noncancer patients who underwent the same treatment at our center (44% [CI 12-77%] compared with 33% [CI 22-44%] per embryo transfer).
  
  
  CONCLUSIONS
  Oocyte cryopreservation is now a feasible fertility preservation option for reproductive-aged patients with cancer who require gonadotoxic therapies.
authors: New York University School of Medicine, and the Fertility Center at New York University Langone Medical Center, New York University School of Medicine, New York, New York; and the IVF Center, Sant'Orsola Malpighi Hospital University of Bologna, Bologna, Italy.
authors: Sarah
authors: S
authors: Druckenmiller
authors: Kara N
authors: KN
authors: Goldman
authors: Patty A
authors: PA
authors: Labella
authors: M Elizabeth
authors: ME
authors: Fino
authors: Antonia
authors: A
authors: Bazzocchi
authors: Nicole
authors: N
authors: Noyes
mesh_terms: D000328:Adult; D015925:Cryopreservation / Q000706:statistics & numerical data*; D005260:Female; D059247:Fertility Preservation / Q000706:statistics & numerical data*; D006801:Humans; D007231:Infant, Newborn; D050498:Live Birth; D009865:Oocytes; D012189:Retrospective Studies; D017741:Survivors; D055815:Young Adult