Supplementary Material for: Is Myomectomy Prior to Assisted Reproductive Technology Cost Effective in Women with Intramural Fibroids?

Aim: To evaluate the cost effectiveness of surgery to remove intramural (IM) fibroids prior to assisted reproductive technology (ART). Methods: The decision tree mathematical model along with sensitivity analysis was performed to analyze cost effectiveness of: (1) myomectomy followed by ART or (2) ART with IM myoma(s) in situ. Results: At the median ongoing pregnancy (OP) rate (OPR) reported in the literature for a fresh, autologous ART cycle with IM fibroids in situ vs. post-IM myomectomy, average cost per OP was $72,355 vs. 66,075, indicating a cost savings with myomectomy. Sensitivity analysis over the range of reported OPRs demonstrated that pre-ART IM myomectomy was always cost effective when OPR among women with in situ myomas was <15.4%. However, for OPRs ≥15.4%, pre-ART IM myomectomy was only cost effective if it increased OPR by at least 9.6%. At the high end of OPRs reported for patients with IM myomas in situ (31.4%), a 19.5% improvement in OPR was needed to justify IM myomectomy from a cost perspective. Conclusion: Myomectomy should be used sparingly in cases where the goal of surgery is to achieve improvement in the outcomes of ART.