Resectoscopic Rollerball Endometrial Ablation and Concomitant Levonorgestrel-Releasing Intrauterine System in Women with Abnormal Uterine Bleeding: Is the Combination Better?

The combined use of endometrial ablation or resection and levonorgestrel-releasing intrauterine system in women with heavy menstrual bleeding: A systematic review

INTRODUCTION

Despite endometrial ablation/resection being a very successful treatment for women with heavy menstrual bleeding, re-intervention with additional surgery is needed in 12%-25% of cases. Introducing a levonorgestrel-intrauterine system (LNG-IUS) immediately after ablation could preserve the integrity of the uterine cavity and suppress the regenerated or non-ablated endometrial tissue. Therefore, this combined treatment can perhaps lower the re-intervention rate. The aim of this systematic review was to assess the impact of the combined treatment.

MATERIAL AND METHODS

The MEDLINE, EMBASE, and Cochrane library were systematically searched. No language restrictions were applied. All types of studies were included reporting on the results of endometrial ablation or resection combined with immediate insertion of LNG-IUS for treatment of heavy menstrual bleeding. The primary outcome was the number of hysterectomies after the ablation procedure. Secondary outcomes included re-intervention rates, removals of LNG-IUS, bleeding pattern, patient satisfaction, adverse effects, and complications. Our protocol was registered in PROSPERO, an international prospective register of systematic reviews under registration number CRD42020151384.

RESULTS

Six studies with a retrospective design and one case series with a follow-up duration varying from 6 to 55 months were included. In total, 427 women were treated with the combined treatment. The studies described a lower hysterectomy and re-intervention rate after combined treatment compared with treatment with endometrial ablation/resection alone. Hysterectomy rate varied from 0% to 11% after combined treatment compared with 9.4% to 24% after endometrial ablation/resection alone. Bleeding patterns and patient satisfaction appeared to be in favor of the combined treatment group. No intra- or post-operative complications or complications in the removal of LNG-IUS were described. The most reported adverse effects after combined treatment were weight gain, mood changes, and headaches. An additional 11 studies with only an abstract available substantiated these findings. All the included studies had poor methodological quality.

CONCLUSIONS

Based on the available literature, inserting an LNG-IUS immediately after endometrial ablation/resection seems to lower the hysterectomy and re-intervention rates compared with ablation/resection alone. However, as only limited observational studies of low methodological quality are available, high-quality research is necessary to confirm the findings of this systematic review.

Late-onset endometrial ablation failure

Endometrial ablation, first reported in the 19th century, has gained wide acceptance in the gynecologic community as an important tool for the management of abnormal uterine bleeding when medical management has been unsuccessful or contraindicated. The introduction of global endometrial ablation (GEA) devices beginning in 1997 has provided unsurpassed safety addressing many of the concerns associated with their resectoscopic predecessors. As of this writing the GEA market has surpassed a half-million devices in the United States per annum and has an expected compound annual growth rate (CAGR) projected to be 5.5% from 2016 to 2024.

While the short term safety and efficacy of these devices has been reported in numerous clinical trials we only recently are becoming aware of the high incidence of late-onset endometrial ablation failures (LOEAFs) associated with these procedures. Currently, about a quarter of women who undergo a GEA procedure will eventually require a hysterectomy while an unknown number have less than satisfactory results. In order to reduce these suboptimal outcomes physicians must better understand the etiology and risk factors that predispose a patient toward the development of LOEAF as well as current knowledge of patient and procedure selection for EA as well as treatment options for these delayed complications.

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Over 500,000 endometrial ablations (EAs) are performed in the U. S. each year.

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Late-onset endometrial ablation failures (LOEAFs) are the most common complication of EA.

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25% of women who undergo EA will require hysterectomy within 5 years.

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Reducing the incidence of LOEAFs requires improved patient selection for EA.

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Ultrasound-guided reoperative hysteroscopic surgery (UGRHS) reduces the need hysterectomy following LOEAF.