PMID: 8947820Oct 1, 1996Paper

Simultaneous program of natural-cycle in vitro fertilization and cryopreserved-thawed embryo transfer

Journal of Assisted Reproduction and Genetics
S H KimY S Chang

Abstract

This clinical study was designed to identify and compare the pregnancy rates of simultaneous program of natural-cycle IVF and cryopreserved-thawed ET (NICE) with those of natural-cycle IVF and cryopreserved-thawed ET. All three groups comprised spontaneously ovulating infertile women under the age of 40 and without any male factor present. The NICE program was performed in 36 patients (47 cycles) who had previously undergone IVF-ET resulting in cryopreserved embryos. As control groups, the natural-cycle IVF was performed in 45 patients (80 cycles), and the cryopreserved-thawed ET alone in 29 patients (40 cycles). The cancellation rate of the initiated cycles prior to ET was 19.1% (9/47) in the NICE group, 23.8% (19/80) in the natural-cycle IVF group, and 2.5% (1/40) in the cryopreserved-thawed ET group. The mean number of embryos transferred was 4.0 +/- 1.1 (2-5) in the NICE group, 1.0 in the natural-cycle IVF group, and 4.2 +/- 1.8 (1-5) in the cryopreserved-thawed ET group. The clinical pregnancy rates per aspiration cycle (32.5%) and per ET cycle (34.2%) in the NICE group were significantly higher than those (14.9, 16.4%) in the natural-cycle IVF group. The clinical and delivered pregnancy rates per ET (34.2, 26.3%) in the N...Continue Reading

References

Aug 12, 1978·Lancet·P C Steptoe, R G Edwards
Jan 1, 1988·Annals of the New York Academy of Sciences·M PlachotJ Cohen
Jan 1, 1988·Annals of the New York Academy of Sciences·J MandelbaumJ Cohen
Oct 1, 1988·Journal of in Vitro Fertilization and Embryo Transfer : IVF·J CohenT G Turner
Feb 1, 1988·Fertility and Sterility·J CohenT G Turner
Jan 1, 1988·Human Reproduction·J MandelbaumL Tesquier
Oct 1, 1986·Journal of in Vitro Fertilization and Embryo Transfer : IVF·R Frydman, J Testart
Mar 1, 1985·Journal of in Vitro Fertilization and Embryo Transfer : IVF·L R MohrL Freemann

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Citations

Mar 30, 2004·Reproductive Medicine and Biology·Yasuhiro Takanashi

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