A prospective,double-blind,randomized, placebo-controlled clinical trial of bromocriptine in clomiphene-resistant patients with polycystic ovary syndrome and normal prolactin level |
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Authors: | Parsanezhad Mohammad Ebrahim Alborzi Saeed Jahromi Bahia Namavar |
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Affiliation: | Department of Obstetrics and Gynecology, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran. |
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Abstract: | OBJECTIVE: To evaluate the effects of administration of bromocriptine combined with clomiphene citrate (CC) in CC-resistant patients with polycystic ovary syndrome (PCOS) and normal prolactin (PRL) level. DESIGN: Prospective double-blind, placebo-controlled, randomized. SETTING: Referral university hospitals. PATIENTS: One hundred women with PCOS and normal PRL who failed to ovulate with a routine protocol of CC. INTERVENTIONS: Treatment group received 150 mg of CC from day 5 to 9 and 7.5 mg bromocriptine continuously, with hCG 10,000 units on day 16 or 17. Control group received the same protocol of CC combined with placebo. MAIN OUTCOME MEASURES: Follicular development, hormonal changes, ovulation rate, pregnancy rate. RESULTS: Follicular development (follicular size greater than 15 mm) was observed in 12 (25.5%) and 8 (15.1%) women in the treatment and placebo group, respectively (p = 0.29). The serum prolactin level was within normal limits in all patients before treatment. After 3 and 6 months of treatment with bromocriptine, there was a significant decrease in serum level of prolactin (p = 0.000001). No significant differences were seen in ovulation, pregnancy rate, or serum levels of FSH, LH, DHEAS, and progesterone between treatment and placebo groups after treatment. CONCLUSIONS: The only significant effect of long-term bromocriptine therapy in CC-resistant women with PCOS was to lower the serum PRL concentration. It is also concluded that 10%-15% of patients with PCOS experienced occasional ovulatory cycles and pregnancy whether or not they were on treatment. |
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