Abstract
The aim of this study was to assess whether the extent of the change in high sensitivity C-reactive protein (hs-CRP) levels is related with in vitro fertilization (IVF) success. A total of 69 IVF cycles using long luteal GnRH agonist protocol at the IVF unit, were prospectively studied. The serum levels of hs-CRP were measured on the day of initiation of gonadotrophin stimulation and 7 days after embryo transfer. CRP ratio was defined as the levels of CRP on day 7 of transfer/day of initiation of ovarian stimulation. Clinical pregnancy rates were examined. The mean concentrations of hs-CRP were not significantly different on the first day of ovarian stimulation and on day 7 after embryo transfer among pregnant and non-pregnant women. There was a significant rise in hs-CRP levels at 7th day after embryo transfer as compared with the first day of gonadotrophin treatment in both groups (10.58 ± 11.35 versus 3.61 ± 2.86 mg/L for pregnant women and 9.14 ± 11.36 versus 3.24 ± 2.68 mg/L for non-pregnant women, p = 0.001). In addition, the mean CRP ratio was not different between the pregnant and non-pregnant groups. Our data show that serum hs-CRP levels increase during IVF treatment, but the extent of the rise in CRP levels is not a predictive marker of IVF success.
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