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  • Title: Perifollicular Doppler flow and follicular fluid vascular endothelial growth factor concentrations in poor responders.
    Author: Battaglia C, Genazzani AD, Regnani G, Primavera MR, Petraglia F, Volpe A.
    Journal: Fertil Steril; 2000 Oct; 74(4):809-12. PubMed ID: 11020528.
    Abstract:
    OBJECTIVE: To prospectively evaluate follicular fluid levels of vascular endothelial growth factor in women undergoing IVF cycles and to investigate the correlation of these levels with ovarian response to gonadotropins and with uterine or ovarian Doppler findings. DESIGN: Prospective study. SETTING: University hospital. PATIENT(S): 41 patients undergoing ART were divided into two groups according to response to ovarian stimulation protocols: poor responders (n = 18) and normoresponders (n = 23). INTERVENTION(S): Doppler analysis of perifollicular arteries and assay of follicular fluid vascular endothelial growth factor. MAIN OUTCOME MEASURE(S): During ovarian stimulation, patients underwent hormonal (E2), ultrasonographic (follicular number and diameter, endometrial thickness) and Doppler (uterine and perifollicular arteries) evaluation. Serum and follicular fluid concentrations of vascular endothelial growth factor were assayed in each female patient. RESULT(S): Compared with poor responders, more oocytes were collected and more embryos were transferred but follicular fluid levels of vascular endothelial growth factor levels were lower in normoresponders. Follicular fluid levels of vascular endothelial growth factor were inversely correlated with number of oocytes retrieved. Poor responders had significantly higher uterine and perifollicular Doppler flow resistances. The pregnancy rate per cycle was significantly higher in normoresponders (26%) than poor responders (6%). CONCLUSION(S): Elevated follicular fluid levels of vascular endothelial growth factor concentrations are associated with poor ovarian response and a very low pregnancy rate.
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