Assisted reproductive technology in the United States and Canada: 1992 results generated from the American Fertility Society/Society for Assisted Reproductive Technology Registry.

OBJECTIVE

To summarize the procedures and outcomes of assisted reproductive technology (ART) initiated in the United States in 1992.

DESIGN

Data were collected on an annual summary form and submitted to The American Fertility Society/Society for Assisted Reproductive Technology Registry.

PARTICIPANTS

Two hundred forty-nine programs submitted data on procedures performed in 1992. Data were collected in October 1993 so that outcome of all pregnancies established would be known.

MAIN OUTCOME MEASURES

The outcomes measured included clinical pregnancy, ectopic pregnancy, abortion, stillbirth, delivery, and congenital abnormality.

RESULTS

Programs reported initiations of 37,955 cycles of ART treatment, excluding frozen embryo and donor oocyte cycles. Of these, 29,404 cycles initiated were IVF with 16.8% deliveries per retrieval, 5,767 were cycles of GIFT with 26.3% deliveries per retrieval, 1,993 cycles of zygote intrafallopian transfer with 22.8% deliveries per retrieval, and 791 were combination cycles, combining IVF and one of the tubal transfer techniques, resulting in 27.9% deliveries per retrieval. In addition to these cycles initiated in 1992, 5,814 frozen ET procedures were reported, either as separate procedures or in combination with another ART procedure, with 13.9% deliveries per procedure, and 2,032 donor oocyte or surrogacy cycles were initiated with an overall success of 31.3% deliveries per retrieval. As a result of all procedures, a total of 7,355 deliveries were reported.

CONCLUSIONS

In 1992, there were more programs offering more treatment cycles of ART. Average success rates exhibited only a small increase compared with previously reported summaries.