OBJECTIVE: To compare embryos obtained after IVF and intracytoplasmic sperm injection (ICSI) regarding morphology and the likelihood of achieving clinical pregnancy. DESIGN: Case-control study. SETTING: An IVF unit controlling 1,310 cycles in 1996. PATIENT(S): Women having a total of 477 IVF and 475 ICSI consecutive cycles. INTERVENTION(S): Ovarian stimulation, IVF-ET, or ICSI-ET for all couples. MAIN OUTCOME MEASURE(S): Number of grade-A embryos transferred, preclinical pregnancy losses, and clinical pregnancy rates in IVF and ICSI cycles. RESULT(S): In comparison with the ICSI group, the IVF group showed significantly more grade-A embryos available for transfer (mean, 2 +/- 1.6 versus 1.8 +/- 1.5), significantly fewer preclinical pregnancy losses (1.6% versus 4%), and significantly higher clinical pregnancy rates (25% versus 19.1%). CONCLUSION(S): Embryos obtained after IVF are superior to those obtained after ICSI in relation to embryo morphology and the likelihood of achieving clinical pregnancy.
OBJECTIVE: To compare embryos obtained after IVF and intracytoplasmic sperm injection (ICSI) regarding morphology and the likelihood of achieving clinical pregnancy. DESIGN: Case-control study. SETTING: An IVF unit controlling 1,310 cycles in 1996. PATIENT(S): Women having a total of 477 IVF and 475 ICSI consecutive cycles. INTERVENTION(S): Ovarian stimulation, IVF-ET, or ICSI-ET for all couples. MAIN OUTCOME MEASURE(S): Number of grade-A embryos transferred, preclinical pregnancy losses, and clinical pregnancy rates in IVF and ICSI cycles. RESULT(S): In comparison with the ICSI group, the IVF group showed significantly more grade-A embryos available for transfer (mean, 2 +/- 1.6 versus 1.8 +/- 1.5), significantly fewer preclinical pregnancy losses (1.6% versus 4%), and significantly higher clinical pregnancy rates (25% versus 19.1%). CONCLUSION(S): Embryos obtained after IVF are superior to those obtained after ICSI in relation to embryo morphology and the likelihood of achieving clinical pregnancy.
Authors: I Bar-Hava; M Yitzhak; H Krissi; M Shohat; J Shalev; B Czitron; Z Ben-Rafael; R Orvieto Journal: J Assist Reprod Genet Date: 2001-04 Impact factor: 3.412
Authors: Z Zukerman; R Orvieto; O M Avrech; D B Weiss; S Gottschalk-Sabag; E Bar-On; O Rufas; I Bar-Hava; Z Ben-Rafael; B Fisch Journal: J Assist Reprod Genet Date: 2000-02 Impact factor: 3.412
Authors: T Perri; R Chen; R Yoeli; P Merlob; R Orvieto; Y Shalev; Z Ben-Rafael; I Bar-Hava Journal: J Assist Reprod Genet Date: 2001-05 Impact factor: 3.412
Authors: R Orvieto; Z Ben-Rafael; J Ashkenazi; R Yoeli; B Messing; T Perri; Y Shalev; I Bar-Hava Journal: J Assist Reprod Genet Date: 2000-08 Impact factor: 3.412