عنوان مقاله [English]
Introduction: Dysmenorrhea is a common gynecologic disorder that at least half of women experience it during their reproductive period. Treatments, which are based on prostaglandin reduction, can be used to treat dysmenorrhea. Levonorgestrel-releasing intra uterine device (IUD) known as Mirena is one of these treatments that decrease the synthesis of endometrial prostaglandins. This study was performed in order to assess the frequency of dysmenorrhea in women using copper IUDs compared to those using Mirena IUDs.
Methods: This double-blind randomized clinical trial was performed on 160 women aged between 20 to 35 years who referred to Shahid Ayat Health Center (2006 and 2007) and decided to use IUDs as contraceptive method. Subjects were randomly divided into two groups of 80 cases, group A (insertion Mirena IUD) and group B (insertion copper 380-A IUD). Dysmenorrhea was assessed by designed questionnaires at first, and then 1, 3 and 6 months after insertion. Data were analyzed using Chi square, student t-test and repeated measure variance analysis by SPSS11.5.
Results: Dysmenorrhea significantly decreased in both groups six months after IUD insertion compared to the first month (P<0.001). However, statistically, Mirena IUD reduced dysmenorrhea faster and earlier compared to cupper IUD (P<0.003).
Conclusion: Levonorgestrel-releasing IUD can be used in young women to treat drug resistant dysmenorrhea, not only as a means of preventing dysmenorrhea, but also as a contraceptive method.