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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Short versus long gonadotropin-releasing hormone analogue suppression protocols for superovulation in patients > or = 40 years old undergoing intracytoplasmic sperm injection.

OBJECTIVE: 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 > or = 40 years undergoing IVF. INTERVENTION(S): At their first IVF cycle, the women were randomized into two study 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.[1]

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