To determine whether the short or long protocol for controlled ovarian hyperstimulation works better in older patients undergoing IVF. Design: Controlled, randomized study. Setting: A single private IVF center. Patien...To determine whether the short or long protocol for controlled ovarian hyperstimulation works better in older patients undergoing IVF. Design: Controlled, randomized study. Setting: A single private IVF center. Patient(s): Two hundred twenty infertile women aged ≥ 40 years undergoing IVF.Intervention(s): At their first IVF cycle, the women were randomized into two stud groups according to a computer-generated number sequence: 110 patients were treated with a long protocol, and the other 110 were treated with a short protocol for controlled ovarian hyperstimulation. Main Outcome Measure(s): Days of stimulation, E2 level at the day of hCG administration, amount of FSH administered, number of oocytes collected, number of embryos obtained, pregnancy rate, implantation rate. Result(s): Patients treated with a long protocol showed a significantly higher number of oocytes retrieved, a higher number of embryos obtained, and a higher pregnancy rate, both for cycle and transfer, compared with the short-protocol patients. The other parameters evaluated did not show any statistically significant differences. Conclusion(s): Our study showed that the long protocol performed better than the short protocol in older women. Our findings demonstrated that flare-up in older women might be detrimental.展开更多
文摘To determine whether the short or long protocol for controlled ovarian hyperstimulation works better in older patients undergoing IVF. Design: Controlled, randomized study. Setting: A single private IVF center. Patient(s): Two hundred twenty infertile women aged ≥ 40 years undergoing IVF.Intervention(s): At their first IVF cycle, the women were randomized into two stud groups according to a computer-generated number sequence: 110 patients were treated with a long protocol, and the other 110 were treated with a short protocol for controlled ovarian hyperstimulation. Main Outcome Measure(s): Days of stimulation, E2 level at the day of hCG administration, amount of FSH administered, number of oocytes collected, number of embryos obtained, pregnancy rate, implantation rate. Result(s): Patients treated with a long protocol showed a significantly higher number of oocytes retrieved, a higher number of embryos obtained, and a higher pregnancy rate, both for cycle and transfer, compared with the short-protocol patients. The other parameters evaluated did not show any statistically significant differences. Conclusion(s): Our study showed that the long protocol performed better than the short protocol in older women. Our findings demonstrated that flare-up in older women might be detrimental.
