ObjectiveTo compare the effect of a levonorgestrel-releasing intrauterine device with that of endometrial resection on menstrual bleeding, patient satisfaction, and quality of life in menorrhagic women during 12 months of followup.MethodsSeventy premenopausal women with dysfunctional uterine bleeding were enrolled in a prospective, open, parallel-group, controlled trial. They were randomized to either insertion of an intrauterine system releasing 20 μg/day of levonorgestrel (n= 35) or endometrial resection (n= 35). The women were evaluated at baseline, and thereafter, uterine bleeding was assessed monthly with a pictorial blood loss assessment chart. Clinical gynecologic examination was performed bimonthly, and the hematologic variables were measured at 6 and 12 months. On the latter occasion, the women were requested to rate the degree of satisfaction with the effect of their treatment and to complete the Short Form 36 General Health Survey questionnaire.ResultsRecurrent menorrhagia was observed at 12 months in four women in the intrauterine device group (including two with partial expulsion of the device) and in three women in the resection group. Compared with baseline values, at 1 year, the pictorial blood loss assessment chart score was reduced by 79% in the former group and by 89% in the latter. Amenorrhea or hypomenorrhea at 12 months was reported by 65% of the women with an intrauterine device compared with 71% who underwent endometrial resection. The degree of satisfaction with treatment was high in both groups, with 29 of 34 (85%) women being satisfied or very satisfied in the intrauterine device group versus 33 of 35 (94%) in the resection group. Health-related quality of life perception was not significantly different in the two treatment groups.ConclusionSomewhat less satisfactory results were obtained with a levonorgestrel-releasing intrauterine system compared with endometrial resection for dysfunctional uterine bleeding at 1 year of follow-up.