Meeting the challenge of unclaimed cryopreserved embryos.

With the rise of efficient and highly effective embryo cryopreservation techniques, the modern in vitro fertilization laboratory has unintentionally become a long-term storage facility for embryos and gametes. One challenge posed by long-term storage is the issue of unclaimed, effectively abandoned, cryopreserved embryos whose owners cannot be identified or are unable to provide a dispositional decision. Given the nuanced nature of dealing with human tissue, no straightforward solutions for managing this novel scenario have prevailed. In this article, we discuss the problem faced by physicians, clinics, and patients alike when faced with unclaimed cryopreserved embryos. We also review strategies for proactive prevention and resolution of conflicts that may arise when making dispositional decisions.