Pain is an Independent Risk Factor for Failed Global Endometrial Ablation

Meagan S. Cramer, Jordan S. Klebanoff, Hoffman MK, Matthew Hoffman, Matthew K Hoffman
Journal of Minimally Invasive Gynecology · 2018 · vol. 25(6) , pp. 1018–1023 · doi:10.1016/j.jmig.2018.01.020 · PMID:29374620 · W2792602797
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This study investigated pain as a risk factor for failed global endometrial ablation, finding that pain independently predicts a higher likelihood of procedure failure.

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Abstract

Study objectiveTo determine whether pain, as part of an indication for global endometrial ablation, is an independent risk factor for failure.DesignRetrospective cohort study (Canadian Task Force classification II-2).SettingAcademic-affiliated community hospital.PatientsWomen undergoing global endometrial ablation with radiofrequency ablation (RFA), hydrothermablation (HTA), or uterine balloon ablation (UBA) between January 2003 and December 2015.InterventionsProcedure failure was defined as subsequent hysterectomy after the index ablation.Measurements and main resultsA total of 5818 women who underwent an endometrial ablation were identified, including 3706 with RFA (63.7%), 1786 with HTA (30.7%), and 326 with UBA (5.6%). Of the 5818 ablations, 437 (7.5%) involved pain (i.e., pelvic pain, dysmenorrhea, dyspareunia, lower abdominal pain, endometriosis, or adenomyosis) before ablation, along with abnormal uterine bleeding. Pain as part of the preoperative diagnoses before endometrial ablation was a significant risk factor for subsequent hysterectomy compared with all other diagnoses (19.2% vs 13.5%; p = .001). Consistent with previous studies, women who underwent ablation at an older age were less likely to fail, which held true even when one of the indications for ablation was related to pain (odds ratio, 0.96/year; 95% confidence interval, 0.95-0.97). When the pathology reports of women who underwent a hysterectomy were examined, women in the pain group had lower rates of adenomyosis than women without pain (38.1% vs 50.1%; p = .04). However, there was a trend toward a higher rate of endometriosis on pathology reports (14.3% vs 8.7%; p = .09) and even higher rates of visualized endometriosis identified by operative reports in women who had pain before their ablation (42.9% vs 15.8%; p < .001). Patients who had pain before their ablation were less likely to have myomas/polyps (p = .01).ConclusionPelvic pain before global endometrial ablation is an independent risk factor for failure.

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Condition tags

endometriosischronic_pelvic_pain

MeSH descriptors

Endometrial Ablation Techniques Endometriosis Pelvic Pain Uterine Diseases Adult Cohort Studies Endometrial Ablation Techniques Endometrial Ablation Techniques Endometriosis Female Humans Middle Aged Retrospective Studies Risk Factors Treatment Failure Uterine Diseases

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