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INDIAN WELLS, CALIF. -- Just over half of the couples donating unused embryos from in vitro fertilization procedures consider the embryos to be "completely different from children."
Indeed, many say they view the process as similar to donating blood or organs, according to a survey done by researchers at the University of Wisconsin at Madison.
Julianne E. Zweifel, Ph.D., and her associates decided to explore the attitudes of couples donating embryos for stem cell research when routine telephone calls during the process became lengthy discussions, suggesting to the team that these couples may have had unresolved feelings and questions.
"Phone calls that should [have lasted] about 5 minutes were lasting 20 or 30 minutes. They wanted to talk through these issues," Dr. Zweifel said during a presentation of her results at the annual meeting of the Pacific Coast Reproductive Society.
A subset of 45 couples consented to answer questions about the embryo donation process. The embryos had been created, in about one in five couples, with donor gametes.
Couples' embryos had been cryopreserved for a mean 4.8 years, with a wide range of 1-13 years, possibly representing the difficulty some couples had in making a decision about what to do, said Dr. Zweifel of the department of obstetrics and gynecology at the University of Wisconsin, Madison.
The respondents said they were donating embryos to research to help others (21 couples), in hopes of finding a cure for a specific disease (8 couples), to support research in general (7 couples), because they did not want to waste the embryos (7 couples), or for other reasons (2 couples).