JOURNAL ARTICLE

C-reactive protein levels in patients undergoing controlled ovarian hyperstimulation for IVF cycle

Raoul Orvieto, Roni Chen, Jacob Ashkenazi, Avi Ben-Haroush, Avi Ben-Harush, Jacob Bar, Benjamin Fisch
Human Reproduction 2004, 19 (2): 357-9
14747180

BACKGROUND: The aim of the present study was to determine serum and follicular fluid C-reactive protein (CRP) levels in patients undergoing controlled ovarian hyperstimulation (COH) for IVF-embryo transfer cycle, and their possible correlation to COH variables.

PATIENTS AND METHODS: The subjects were 16 consecutive patients undergoing our routine IVF long GnRH agonist protocol. Blood was drawn three times during the COH cycle: (i) the day on which adequate suppression was obtained (Day-S); (ii) the day of, or prior to HCG administration (Day-HCG); and (iii) the day of (and before) oocyte pick-up (Day-OPU). Levels of sex steroids and serum and follicular fluid CRP were compared among the three time points. Serum and follicular fluid CRP were measured with a commercial immunoturbidimetric assay.

RESULTS: Serum levels of CRP were significantly higher on Day-OPU and Day-HCG than on Day-S, and significantly higher on Day-OPU than on Day-HCG. No difference was observed between follicular and serum CRP levels on Day-OPU. No significant correlations were found between serum and follicular fluid CRP, or between serum CRP-to-BMI ratio and serum sex steroid levels or IVF treatment variables.

CONCLUSIONS: The significant increase in serum CRP levels during COH, especially after HCG administration, suggests that COH potentiates a state of systemic inflammation.

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