Letter in response to Levonorgestrel-releasing intrauterine system (Mirena(R)) and Depot medroxyprogesterone acetate (Depo-Provera) as long-term maintenance therapy for patients with moderate and severe endometriosis: a randomised trial by Wong AYK, Tang LCH, Chin RKH Aust N Z J Obstet Gynaecol 2010; 50 (3): 273-279.

摘要

We read with interest the study by Wong et al regarding the effectiveness of levonorgestrel-releasing intrauterine system (Mirena~R) for long-term follow-up treatment after surgery in women diagnosed with endometriosis. However, we would like to make the following comments.The poor association between the stage of endometriosis and severity of pelvic symptoms has been known for some time.2 Although ultrasound and magnetic resonance imaging scans can identify endometriotic cysts, they have not been found to be useful in identifying advanced disease (rectovaginal involvement).3 Hence, using transvaginal scan as a tool to diagnose disease recurrence may not have been appropriate.