1322 Comparison of Two Endometrial Ablation Techniques

Abstract

Study Objective To compare the effectiveness of two methods (Novasure and Minerva) of endometrial ablation in a single community private practice. Design Retrospective chart review of all practice patients undergoing Novasure or Minerva endometrial ablation between 2015 and 2018. Minimum follow-up after the procedure was six months. Setting Procedures were all performed at Saddleback Center for Surgery (ambulatory surgery center) under general anesthesia by the physicians of Orange Coast Women's Medical Group. Patients or Participants All ablations performed between 2015 and 2018 were reviewed. 208 total ablations were performed. There were 127 in the Minerva cohort and 81 in the Novasure cohort. Interventions Not Applicable Measurements and Main Results Charts were reviewed for patient age, amenorrhea rates, rate of subsequent hysterectomy, improvement in bleeding, number of procedures performed by each provider, and days of follow up. Key results revealed no significant difference in the rate of amenorrhea in patients undergoing ablation with Minerva 32.3% (41/127) and Novasure 40.7% (33/81), (p=0.21). There was no significant difference in the rate of subsequent hysterectomy, 5.5% in the Minerva group and 9.9% in the Novasure group (p=0.24). There was no significant difference in patients showing improvement in bleeding without amenorrhea, 48.8% in the Minerva group and 44.4% in the Novasure group (p=0.72). There was no significant difference in the total combined amenorrhea and bleeding improvement; 81.1% in the Minerva group and 85.1% in the Novasure group (p= 0.45). Conclusion In our series, there was no significant difference in the Minerva or Novasure endometrial ablation systems in the rate of amenorrhea, subsequent hysterectomy, and overall decrease in bleeding.