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Hum Reprod. 1998 Mar;13(3):567-70.

The impact of insulin resistance on the outcome of ovulation induction with low-dose follicle stimulating hormone in women with polycystic ovary syndrome.

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  • 1Department of Obstetrics and Gynecology, The National Hospital, Oslo, Norway.


In this study we examined the possible correlation between insulin metabolism and outcome of gonadotrophin stimulation in infertile clomiphene citrate resistant women with polycystic ovary syndrome (PCOS). The patient group comprised 42 women who were entered into the study in a consecutive fashion. Following performance of the CIGMA (continuous infusion of glucose with model assessment) test, 17 women were classified as insulin resistant and 25 women as non-insulin resistant. Each woman received up to two cycles of low-dose follicle stimulating hormone (FSH) stimulation starting with 75 IU of FSH for 1 week, giving a total of 70 cycles performed. The insulin resistant PCOS women required more gonadotrophin and a longer time to achieve follicular maturation. By multiple regression gonadotrophin consumption correlated best with CIGMA value but not with fasting insulin concentration or body mass index. In the insulin resistant PCOS women 10 out of 29 cycles were cancelled due to a multifollicular response, while only one of 41 cycles was cancelled in the non-insulin resistant PCOS women. Although ovulation rate in completed cycles was similar between the groups, the conception rate was significantly better in the non-insulin resistant PCOS women. In conclusion, in PCOS women insulin resistance seems to be an unfavourable condition resulting in an elevated cancellation rate and a low conception rate following low-dose FSH stimulation.

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