Ovarian stromal blood flow at the baseline ultrasound scan is correlated with subsequent follicular response and may be a new indicator for predicting ovarian responsiveness in an IVF program.

This study compared the outcome of a course of up to three cycles of in-vitro fertilization (IVF) treatment in 46 women (97 cycles) who had polycystic ovaries (PCO) seen on ultrasound scan, but who had no clinical symptomatology associated with polycystic ovary syndrome, with that of 145 women (332 cycles) who had normal ovarian morphology on ultrasound examination. All 191 women had normal early follicular phase serum follicle stimulating hormone (FSH) concentrations, were less than 40 years of age and used the long protocol of pituitary suppression with gonadotrophin-releasing hormone agonist therapy. On average, the women with PCO produced more follicles, oocytes and embryos than the women with normal ovaries, but the fertilization, cleavage and miscarriage rates were similar. Adjusted for age, the odds of achieving a pregnancy within three cycles of treatment in a woman with PCO were 69% higher than those of a woman with normal ovaries [odds ratio (OR): 1.69, 95% confidence interval (CI) 0.99-2.90, P = 0.05)] and the odds of achieving a live birth were 82% higher (OR: 1.82, 95% CI 1.05-3.16, P = 0.03). There is, therefore, evidence that outcome of IVF treatment for women with PCO seen on ultrasound examination may be better than that for women with normal ovaries.

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