title: Treatment of Endometriosis and Chronic Pelvic Pain with Letrozole and Norethindrone Acetate.
abstract: BACKGROUND
  Endometriosis is encountered in 7-10% of actively menstruating women, with a suspected prevalence as high as 22% in asymptomatic women. It is an important cause of chronic pelvic pain. The aim of this study was to evaluate the efficacy and safety of letrozole in combination with norethindrone acetate and calcium in the management of endometriosis associated pelvic pain.
  
  
  METHODS
  Prospective non-randomized open label study was carried out including 20 patients with endometriosis related pelvic pain that was refractory to previous treatments.
  
  
  RESULTS
  In all 14 patients completed the study. All patients showed significant improvement of pain scores and revealed significant improvement of features of endometriosis on being given letrozole in combination with norethindrone acetate and calcium.
  
  
  CONCLUSIONS
  Letrozole is an effective drug for treatment of endometriosis.
authors.affiliation: Classified Specialist (Obstetrics & Gynaecology), Base Hospital, New Delhi-10.
authors.forename: S
authors.initials: S
authors.lastname: Chawla
keywords: Endometriosis; Letrozole