随着玻璃化冷冻技术的进展,证实卵子冷冻安全可靠。我曾经应用该技术治疗过 不孕 病人(年轻时没有结婚,保留了卵子,结婚时已经年长了--卵子质量下降了),孩子已经生了。 上海中医药大学附属曙光医院东院生殖医学中心童国庆
如下是美洲生殖医学学会的总结报告:
Fertility Experts Issue New Report on Egg Freezing; ASRM Lifts “Experimental” Label from Technique |
ASRM 24 October 2012 San Diego, CA - The Practice Committee of the American Society for Reproductive Medicine (ASRM) issued a new report today stating that in young patients egg freezing techniques have been shown to produce pregnancy rates, leading to the birth of healthy babies, comparable to IVF cycles using fresh eggs. The report entitled “Mature Oocyte Cyryopreservation” replaces a report released in 2008 which had stated that the technique was experimental and should only be offered in that context. The current report examined nearly 1000 published papers on the topic. While randomized controlled studies were rare, the Committee found sufficient evidence to “demonstrate acceptable success rates in young highly selected populations.” The report does urge caution, however. The Committee points out that the age of the woman at the time of egg freezing is a very important factor. “Success rates with oocyte cryopreservation appear to decline with maternal age consistent with the clinical experience with fresh oocytes.” The report proposes that egg freezing could provide a viable alternative source of tissues for couples needing donor eggs to build their families. In addition, among the medical indications for its use are fertility preservation for patients who may be left infertile following medical treatments for other diseases, some genetic conditions, or IVF treatment interrupted by the unexpected inability to obtain sperm. The ASRM Practice Committee is not yet ready to endorse widespread use of egg freezing for elective use. Citing a lack of data on safety, efficacy, cost-effectiveness, and potential emotional risks, the report states, “Marketing this technology for the purpose of deferring childbearing may give women false hope and encourage women to delay childbearing. Patients who wish to pursue this technology should be carefully counseled.” “Oocyte cryopreservation is an exciting and improving technology, and should no longer be considered experimental. Pregnancy rates and health outcomes of the resulting children are now comparable to those of IVF with fresh eggs,” said Eric Widra, MD, Chair of the Society for Assisted Reproductive Technology (SART) Practice Committee. |