Abstract
The ovarian response to 14 days of GnRH-analogue (GnRHa) application in patients with polycystic ovary syndrome (PCOS) was evaluated by measuring hemodynamic parameters and hormonal profile. Twenty patients with PCOS represented the study group, and 22 patients with normal menstrual cycle (NMC) the reference group. The resistance index (RI) of uteroovarian arterial blood flow and serum level of LH and androstendione were measured on days 4, 13, and 22 of the cycle and after 14 days of GnRHa administration. On day 22 of the cycle the RI in the uterine artery was 0.86 in the PCOS and 0.82 in the NMC group. Throughout the cycle the ovarian arterial blood flow in both ovaries in the PCOS group was similar to that in inactive ovaries in the NMC group. After the 14-day GnRHa administration the RI of uteroovarian blood flow and the serum level of androstenedione remained unchanged in the PCOS group. RI in the uteroovarian blood flow and serum androstendione level in the PCOS group are not affected by 14-day GnRHa administration.
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