G.EN.E.R.A. Centers for Reproductive Medicine, Clinica Valle Giulia, via G. de Notaris 2/b, 00197, Rome, Italy.
Igenomix, Marostica (VI), Italy.
J Assist Reprod Genet. 2019 Aug;36(8):1555-1560. doi: 10.1007/s10815-019-01465-2. Epub 2019 May 27.
Surplus cryopreserved affected/aneuploid blastocysts may be obtained after in vitro fertilization (IVF) treatments with preimplantation genetic testing (PGT). These embryos are considered not suitable for transfer and may be discarded. Currently, in Italy, an embryo disposition decision (EDD) is not allowed and the frozen/vitrified blastocysts (even if affected/aneuploid) should be kept cryopreserved indefinitely. In this peculiar clinical, social, and legislative scenario, we aimed at assessing the attitudes of the patients towards the fate of these embryos, in case the local regulation would be changed and allow an EDD regarding the surplus affected/aneuploid embryos obtained after PGT.
A questionnaire with multiple answers was submitted to 832 patients who obtained affected/aneuploid embryos during a PGT cycle at our private IVF center. They were asked to choose between three putative options with related reasons: everlasting cryopreservation (only option currently available); discard or donate them to research.
Overall, 149 patients (18%; 85 women and 64 men) answered the questionnaire. Among them, 84% (n = 126) would choose to donate their affected/aneuploid blastocysts to research, 9% (n = 13) would discard them and only 7% (n = 10) would keep them cryopreserved indefinitely.
Donation of the affected/aneuploid blastocysts is the option chosen from most of the respondents (84%; 15% of the eligible patients). These patients are motivated from the altruistic will of incentivating the progress in IVF and/or stem cell research and supporting future couples to limit/solve their infertility/health issues.
在进行胚胎植入前遗传学检测(PGT)的体外受精(IVF)治疗后,可能会获得多余的冷冻保存的异常/非整倍体胚胎。这些胚胎被认为不适合移植,可能会被丢弃。目前,在意大利,不允许进行胚胎处置决定(EDD),冷冻/玻璃化的胚胎(即使异常/非整倍体)应无限期冷冻保存。在这种特殊的临床、社会和立法情况下,我们旨在评估患者对这些胚胎命运的态度,如果当地法规发生变化,并允许对 PGT 后获得的多余异常/非整倍体胚胎进行 EDD。
我们向在我们的私人 IVF 中心进行 PGT 周期获得异常/非整倍体胚胎的 832 名患者提交了一份多选题问卷。他们被要求在三个可能的选择中做出选择,并给出相关原因:无限期冷冻保存(目前唯一可用的选择);丢弃或捐赠给研究。
总体而言,有 149 名患者(18%;85 名女性和 64 名男性)回答了问卷。其中,84%(n=126)会选择将异常/非整倍体胚胎捐赠给研究,9%(n=13)会选择丢弃,只有 7%(n=10)会无限期冷冻保存。
大多数受访者(84%;15%的合格患者)选择捐赠异常/非整倍体胚胎。这些患者的动机是出于利他主义的意愿,激励 IVF 和/或干细胞研究的进展,并支持未来的夫妇来限制/解决他们的不孕/健康问题。