Metformin versus laparoscopic unilateral ovarian drilling in clomiphene resistant women with polycystic ovary syndrome

ObjectivesTo compare the hormonal-metabolic profiles and reproductive outcomes between women receiving metformin and women undergoing unilateral ovarian drilling in clomiphene citrate(CC) resistant patients with polycystic ovary syndrome (PCOS)DesignNon randomized controlled trial.SettingObstetrics and Gynecology department, Faculty of medicine, Zagazig University, Egypt.MethodsA total of 120 patients were divided into group 1(n=58) who received metformin therapy and group 2 (n=62) who underwent unilateral ovarian drilling. Hormonal-metabolic profiles changes after treatment were reported and reproductive outcomes were compared between both groups.Main outcomeFSH and LH were reduced significantly in unilateral drilling group (P=<0.001and 0.001), while there was significant improvement in testosterone level , fasting insulin, fasting glucose to insulin ratio and homeostasis model assessment index in metformin therapy group. Pregnancy and ovulation rates were higher after unilateral drilling with significant difference (P=0.048 and 0.004). No significant difference in early miscarriage rate between both groups (P=0.51).ConclusionUnilateral LOD was associated with greater ovulation and pregnancy rates than metformin in women with PCOS who did not conceive with CC.