Reproductive outcome of fresh or frozen-thawed embryo transfer is similar in high-risk patients for ovarian hyperstimulation syndrome using GnRH agonist for final oocyte maturation and intensive luteal support.
OBJECTIVE To summarize the procedures and outcomes of assisted reproductive technologies (ART) that were initiated in the United States in 2001. DESIGN Data were collected electronically using the Society for Assisted Reproductive Technology (SART) Clinic Outcome Reporting System software and submitted to the American Society for Reproductive Medicine/SART Registry. PARTICIPANT(S) Three hundred eighty-five clinics submitted data on procedures performed in 2001. Data were collated after November 2002 [corrected] so that the outcomes of all pregnancies would be known. MAIN OUTCOME MEASURE(S) Incidence of clinical pregnancy, ectopic pregnancy, abortion, stillbirth, and delivery. RESULT(S) Programs reported initiating 108,130 cycles of ART treatment. Of these, 79,042 cycles involved IVF (with and without micromanipulation), with a delivery rate per retrieval of 31.6%; 340 were cycles of gamete intrafallopian transfer, with a delivery rate per retrieval of 21.9%; 661 were cycles of zygote intrafallopian transfer, with a delivery rate per retrieval of 31.0%. The following additional ART procedures were also initiated: 8,147 fresh donor oocyte cycles, with a delivery rate per transfer of 47.3%; 14,509 frozen ET procedures, with a delivery rate per transfer of 23.5%; 3,187 frozen ETs employing donated oocytes or embryos, with a delivery rate per transfer of 27.4%; and 1,366 cycles using a host uterus, with a delivery rate per transfer of 38.7%. In addition, 112 cycles were reported as combinations of more than one treatment type, 8 cycles as research, and 85 as embryo banking. As a result of all procedures, 29,585 deliveries were reported, resulting in 41,168 neonates. CONCLUSION(S) In 2001, there were more programs reporting ART treatment and a significant increase in reported cycles compared with 2000.