A 52-mg levonorgestrel-releasing intrauterine system vs bipolar radiofrequency nonresectoscopic endometrial ablation in women with heavy menstrual bleeding: long-term follow-up of a multicenter randomized controlled trial.

BACKGROUND: The symptom of heavy menstrual bleeding has a substantial impact on professional, physical, and social functioning. In 2021, results from a randomized controlled trial comparing a 52-mg levonorgestrel-releasing intrauterine system and radiofrequency nonresectoscopic endometrial ablation as treatments for women with heavy menstrual bleeding were published. Both treatment strategies were equally effective in treating heavy menstrual bleeding during 2-year follow-up. However, long-term results are also relevant for both patients and healthcare providers. OBJECTIVE: This study aimed to assess long-term differences in reintervention risk and menstrual blood loss in women with the symptom of heavy menstrual bleeding treated according to a strategy starting with a 52-mg levonorgestrel-releasing intrauterine system or radiofrequency nonresectoscopic endometrial ablation. STUDY DESIGN: This study was a long-term follow-up study of a multicenter randomized controlled trial (MIRA trial), in which women were allocated to either a 52-mg levonorgestrel-releasing intrauterine device (n=132) or radiofrequency nonresectoscopic endometrial ablation (n=138). Women from the original trial were contacted to fill out 6 questionnaires. The primary outcome was the reintervention rate after allocated treatment. Secondary outcomes included surgical reintervention rate, menstrual bleeding measured by the Pictorial Blood Loss Assessment Chart, (disease-specific) quality of life, sexual function, and patient satisfaction. RESULTS: From the 270 women who were randomized in the original trial, 196 (52-mg levonorgestrel-releasing intrauterine system group: n=94; radiofrequency nonresectoscopic endometrial ablation group: n=102) participated in this long-term follow-up study. Mean follow-up duration was 7.4 years (range, 6-9 years). The cumulative reintervention rate (including both medical and surgical reinterventions) was 40.0% (34/85) in the 52-mg levonorgestrel-releasing intrauterine system group and 28.7% (27/94) in the radiofrequency nonresectoscopic endometrial ablation group (relative risk, 1.39; 95% confidence interval, 0.92-2.10). The cumulative rate of surgical reinterventions only was significantly higher among patients with a treatment strategy starting with a 52-mg levonorgestrel-releasing intrauterine system compared with radiofrequency nonresectoscopic endometrial ablation (35.3% [30/85] vs 19.1% [18/94]; relative risk, 1.84; 95% confidence interval, 1.11-3.10). However, the hysterectomy rate was similar (11.8% [10/94] in the 52-mg levonorgestrel-releasing intrauterine system group and 18.1% [17/102] in the radiofrequency nonresectoscopic endometrial ablation group; relative risk, 0.65; 95% confidence interval, 0.32-1.34). Most reinterventions occurred during the first 24 months of follow-up. A total of 171 Pictorial Blood Loss Assessment Chart scores showed a median bleeding score of 0.0. No clinically relevant differences were found regarding quality of life, sexual function, and patient satisfaction. CONCLUSION: The overall risk of reintervention after long-term follow-up was not different between women treated according to a treatment strategy starting with a 52-mg levonorgestrel-releasing intrauterine system and those treated using a strategy starting with radiofrequency nonresectoscopic endometrial ablation. However, women allocated to a treatment strategy starting with a 52-mg levonorgestrel-releasing intrauterine system had a higher risk of surgical reintervention, which was driven by an increase in subsequent endometrial ablation. Both treatment strategies were effective in lowering menstrual blood loss over the long term. The results of this long-term follow-up study can support physicians in optimizing the counseling of women with heavy menstrual bleeding, thus promoting informed decision-making regarding choice of treatment.

Guideline No. 453: Endometrial Ablation in the Management of Abnormal Uterine Bleeding.

OBJECTIVE: To provide an update of the current evidence-based guideline on the techniques and technologies used in endometrial ablation, a minimally invasive technique for the management of abnormal uterine bleeding of benign origin. TARGET POPULATION: Women of reproductive age with abnormal uterine bleeding and benign pathology with or without structural abnormalities. BENEFITS, HARMS, AND COSTS: Implementation of the guideline recommendations will improve the provision of endometrial ablation as an effective treatment for abnormal uterine bleeding. Following these recommendations would allow the surgical procedure to be performed safely and maximize success for patients. EVIDENCE: The guideline was updated with published literature retrieved through searches of Medline and the Cochrane Library from January 2014 to April 2023, using appropriate controlled vocabulary and keywords (endometrial ablation, hysteroscopy, menorrhagia, heavy menstrual bleeding, abnormal uterine bleeding, hysterectomy). Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies written in English. Grey (unpublished) literature was retrieved from the Association of Obstetricians and Gynecologists of Quebec (AOGQ) in 2023. VALIDATION METHODS: The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See Appendix A (Tables A1 for definitions and A2 for interpretations of strong and conditional [weak] recommendations). INTENDED AUDIENCE: Obstetricians, gynaecologists, and primary care providers. SOCIAL MEDIA ABSTRACT: This is an updated version of the 2015 SOGC Endometrial Ablation guideline. The authors discuss special considerations, update evidence, and make new fluid deficit recommendations. SUMMARY STATEMENTS: RECOMMENDATIONS.

Ultrasound Appearance of the Endometrium Post-Radiofrequency Ablation.

OBJECTIVE: To describe the ultrasonographic appearance of the post-ablative endometrium to improve knowledge of its sonographic findings. METHODS: This was an Institutional Review Board approved prospective study of patients who underwent second-generation endometrial ablation from 2016 to 2019 at a single health system. Patients had postoperative transvaginal ultrasounds at 2, 6, and 12 months. Ultrasound reports were analyzed for endometrial thickness, description of the endometrium and myometrium, presence of uterine fibroids, and uterine size. Statistical tests for repeated measures were utilized. RESULTS: There were 68 patients with the average age of 42 (SD 6) years and a BMI of 33 (SD 8). Preoperatively the average endometrial thickness was 10 mm, uterine length was 9.7 cm, and 38.2% had leiomyoma. The average endometrial thickness decreased at each ultrasound: 8.4 mm (SD 3.4), 7.2 mm (SD 3.0), and 5.8 mm (SD 2.5) at 2, 6, and 12 months, respectively. When comparing endometrial thickness postoperatively there was a significant difference at 2 and 12 months (P = .041), and 6 and 12 months (P = .031). There was no change during the postoperative period in the presence of leiomyoma, hyperechoic endometrium, hypoechoic endometrium, heterogeneous endometrium, and cystic endometrium on the ultrasounds. CONCLUSION: After ablation with a second-generation device, the endometrial thickness on ultrasound decreases with time following surgery. Additional studies correlating these findings to clinical outcomes would be useful.

Validity of Endometrial Cavity Length on 3D Pelvic Ultrasound before Endometrial Ablation.

OBJECTIVES: This study aimed to compare endometrial cavity length measurements obtained by preoperative three-dimensional (3D) reconstruction of coronal images on pelvic ultrasound with intraoperative endometrial cavity measurements obtained in advance of Minerva endometrial ablation. METHODS: This was a retrospective cohort study of 41 individuals who underwent a Minerva endometrial ablation between August 1, 2018 and March 15, 2022 at a single academic medical center. Patients were excluded if they had an in-clinic ablation or no ultrasound with 3D uterine volume within 180 days before surgery. Physician sonologists measured the endometrial cavity length using 3D coronal reconstruction of the cavity. Two measurements were obtained by separate physicians who were blinded to intraoperative values. Intraoperative endometrial cavity lengths were obtained from operative reports. A Bland-Altman plot was used to evaluate the agreement of intraoperative and ultrasound measurements. RESULTS: The mean intraoperative endometrial cavity length (50.7 ± 7.8 mm) was greater than the mean endometrial cavity length by 3D coronal reconstruction of pelvic ultrasound (36.1 ± 6.2 mm, P < 0.0001). The average difference between intraoperative and ultrasound measurements of cavity length was 14.6 ± 9.0 mm. The agreement between measurements was poor (Lin's concordance correlation coefficient 0.06). Using a Bland-Altman plot, the limits of agreement (-3.1 to 32 mm) exceeded the a priori acceptable limits of agreement (-10 to 10 mm). CONCLUSIONS: Our findings suggest that preoperative coronal endometrial cavity length measurements by ultrasound are not a valid substitute for intraoperative measurements before Minerva ablation.

The ISTH-BAT score and outcomes after endometrial ablation in women with heavy menstrual bleeding.

BACKGROUND: The International Society on Thrombosis and Haemostasis bleeding assessment tool (ISTH-BAT), is used during the diagnostic workup of bleeding disorders. Data on ISTH-BAT scores in women with heavy menstrual bleeding (HMB) undergoing endometrial ablation (EA) could be essential in optimizing HMB counselling. OBJECTIVE: To investigate the postsurgical incidence of amenorrhea, dysmenorrhea, quality of life, re-intervention after EA, and ISTH-BAT score. METHODS: This study included women who have undergone EA because of HMB. During a follow-up of 2 to 5 years, ISTH-BAT, pictorial blood assessment chart (PBAC), and Short Form-36 survey (SF-36) were administered. At 10 years of follow-up surgical re-interventions were evaluated. RESULTS: Seventy-one women were included of whom 77% (n = 55) had an ISTH-BAT score < 6, versus 23% (n = 16) ISTH-BAT score ≥6 (mean age 46.3 versus 42.3, p = 0.004). In the ISTH-BAT ≥6 group versus < 6 group, amenorrhea occurred in 63% (10/16) versus 82% (45/55) (p = 0.111), dysmenorrhea in 38% (6/16) versus 18% (10/55) (p = 0.111), and surgical re-intervention in 19% (3/16) versus 25% (14/55) (p = 0.582). SF-36 item (Bodily) pain was lower in the ISTH-BAT ≥6 group versus < 6 (median score 58.7 vs. 80.0, p = 0.104). CONCLUSIONS: An ISTH-BAT score ≥6 may be related to a lower amenorrhea incidence and higher dysmenorrhea rate after EA.

Evaluation of Radiofrequency Endometrial Ablation: A 17-year Canadian Experience.

STUDY OBJECTIVE: The purpose of this study was to better elucidate radiofrequency endometrial ablation (REA) durability by assessing the probability of failure as defined by need for postablation hysterectomy. Age at index REA, duration from REA until hysterectomy, and REA failure (REAF) risk factors were analyzed. DESIGN: A retrospective cohort study was conducted using patient data between April 1, 2002, and March 31, 2019. REAF cases were identified using operative procedure codes. Cox proportional hazard regression assessed the effect of age at index REA on time to postablation hysterectomy. Kaplan-Meier survival curve evaluated timing of postablation hysterectomy, stratified by age at index REA. SETTING: This study was conducted at Regina General Hospital in Regina, Saskatchewan, Canada. PATIENTS: Patient population included those who were 21 years of age or older, were premenopausal, and had a history of heavy menstrual bleeding at the time of REA. INTERVENTIONS: The intervention under investigation was REA. MEASUREMENTS AND MAIN RESULTS: The overall probability of postablation hysterectomy was 22.6%. The probabilities of postablation hysterectomy were 36.1% for women younger than 30 years (n = 128), 28% for women 30 to 34.9 years old (n = 528), 29.6% for women 35 to 39.9 years old (n = 1152), and 17.6% for women 40 years and older (n = 2221). Characteristics associated with REAF included tubal occlusion, cesarean section, dysmenorrhea, and chronic pelvic pain (p <.01) among women younger than 40 years. Leiomyomas accounted for higher failure rates in women 40 years and older (p <.01). CONCLUSION: Postablation hysterectomy is more likely to occur in women younger than 40 years. REA can be considered in women aged 30 to 39.9 years old, who have no known REAF risk factors. Women younger than 40 years with REAF risk factors will experience higher rates of hysterectomy. Thus, the decision to proceed with REA should be individualized with careful consideration for the underlying causes of abnormal uterine bleeding, while respecting patient autonomy.

Effectiveness and Safety of Ultrasound-guided Percutaneous Microwave Ablation for a Single Uterine Fibroid Greater than 300 cm3.

STUDY OBJECTIVE: To evaluate the effectiveness and safety of ultrasound-guided percutaneous microwave ablation (MWA) for a single uterine fibroid greater than 300 cm3. DESIGN: Retrospective observational study. SETTING: China-Japan Union Hospital of Jilin University, China. PATIENTS: Thirty-seven patients each with a single fibroid greater than 300 cm3 diagnosed by ultrasound and core needle biopsy. INTERVENTIONS: Ultrasound-guided percutaneous MWA. MEASUREMENTS AND MAIN RESULTS: All patients were followed up for 12 months postoperatively to assess the postoperative lesion volume reduction rate, degree of symptomatic relief, improvements in quality of life, and occurrence of adverse events. All 37 patients met the criteria for complete ablation, and the lesion volume significantly decreased from 334.28 cm3 (95% confidence interval [CI] 326.75-366.73) preoperatively to 52.01 cm3 (95% CI, 46.95-74.69) at the 12-month follow-up (difference: 280.15 cm3; 95% CI, 267.92-294.65; p <.001). The lesion volume reduction rates at 1, 3, 6, and 12 months postoperatively were 27.30% (95% CI, 24.12-31.45), 52.90% (95% CI, 47.95-55.80), 67.90% (95% CI, 63.03-70.77), and 84.00% (95% CI, 80.22-85.94), respectively. The differences in the preoperative and postoperative Uterine Fibroid Symptom and Health-Related Quality of Life Questionnaire scores were significant (p <.01). The hemoglobin levels of the anemic patients were significantly elevated after the procedure (p <.001). Of the 37 patients in this study, 29 patients (78.38%) had a highly significant treatment effect, and 8 patients (21.62%) had a significant treatment effect. Seventeen patients (45.95%) had Society of Interventional Radiology grade A to B adverse effects that required no clinical intervention or only simple clinical intervention. CONCLUSION: Ultrasound-guided percutaneous MWA has good clinical efficacy and high safety in the treatment of a single uterine fibroid greater than 300 cm3.

Endometrial cancer after endometrial ablation: a systematic review.

OBJECTIVE: To investigate whether a previously performed endometrial ablation is associated with the development and diagnosis of endometrial cancer. METHODS: First, a systematic review was performed of the articles reporting the incidence of endometrial cancer in patients treated with endometrial ablation. Second, a systematic review was performed to identify all individual cases of endometrial cancer after ablation to evaluate presenting symptoms, diagnostic work-up, potential risk factors, and the type and stage of the endometrial cancer. A systematic search was performed, using Medline, EMBASE, and the Cochrane Library databases, from inception through February 24, 2022. RESULTS: Based on 11 included studies, the incidence of endometrial cancer in a population of 29 102 patients with a prior endometrial ablation ranged from 0.0% to 1.6%.A total of 38 cases of endometrial cancer after ablation were identified. In 71% of cases (17 of 24 cases), vaginal bleeding was the first presenting symptom. With transvaginal ultrasound it was possible to identify and measure the endometrial thickness in eight cases. Endometrium sampling was successful in 16 of 18 described cases (89%). In 18 of 20 cases (90%) pathologic examination showed early-stage endometrioid adenocarcinoma (International Federation of Gynecology and Obstetrics stage I). CONCLUSION: Previous endometrial ablation is not associated with the development of endometrial cancer. Diagnostic work-up is not impeded by previous endometrial ablation. In addition, endometrial cancers after endometrial ablation are not detected at an advanced stage.

Long-term incidence of endometrial cancer after endometrial resection and ablation: A population based Swedish gynecologic cancer group (SweGCG) study.

INTRODUCTION: Minimally invasive methods to reduce menorrhagia were introduced in the 1980s and 1990s. Transcervical endometrial resection (TCRE) and endometrial ablation (EA) are two of the most frequently used methods. As none of them can guarantee a complete removal of the endometrium, there are concerns that the remaining endometrium may develop to endometrial cancer (EC) later in life. The primary aim was to analyze the long-term incidence of EC after TCRE and EA in a nationwide population. The secondary aim was to assess the two treatment modalities separately. MATERIAL AND METHODS: The Swedish National Patient Registry and National Quality Registry for Gynecological Surgery were used for identification of women who had TCRE or EA performed between 1997-2017. The cohort was followed from the first TCRE or EA until hysterectomy, diagnosis of EC, or death. Follow-up data were retrieved from the National Cancer Registry and the National Death Registry. Expected incidence for EC in Swedish women was calculated using Swedish data retrieved from the NORDCAN project after having taken into account differences of age and follow-up time. Cumulative incidence of EC after TCRE and EA, was calculated. A standardized incidence ratio was calculated based on the expected and observed incidence, stratified by age and year of diagnosis. RESULTS: In total, 17 296 women (mean age 45.1 years) underwent TCRE (n = 8626) or EA (n = 8670). Excluded were 3121 who had a hysterectomy for benign causes during follow up. During a median follow-up time of 7.1 years (interquartile range 3.1-13.3 years) the numbers of EC were 25 (0.3%) after TCRE and 2 (0.02%) after EA, respectively. The observed incidence was significantly lower than expected (population-based estimate) after EA but not after TCRE, giving a standardized incidence ratio of 0.13 (95% confidence interval [CI] 0.03-0.53) after EA and 1.27 (95% CI 0.86-1.88) after TCRE. Median times to EC were 3.0 and 8.3 years after TCRE and EA, respectively. CONCLUSIONS: There was a significant reduction of EC after EA, suggesting a protective effect, whereas endometrial resection showed an incidence within the expected rate.

Endometrial ablation plus levonorgestrel releasing intrauterine system versus endometrial ablation alone in women with heavy menstrual bleeding: study protocol of a multicentre randomised controlled trial; MIRA2 trial.

BACKGROUND: It is estimated that between 12 to 25% of women who undergo an endometrial ablation for heavy menstrual bleeding (HMB) are dissatisfied after two years because of recurrent menstrual bleeding and/or cyclical pelvic pain, with around 15% of these women ultimately having a hysterectomy. The insertion of a levonorgestrel-releasing intrauterine system (LNG-IUS) immediately after endometrial ablation may inactivate residual untreated endometrium and/or inhibit the regeneration of endometrial tissue. Furthermore, the LNG-IUS may prevent agglutination of the uterine walls preventing intrauterine adhesion formation associated with endometrial ablation. In these ways, insertion of an LNG-IUS immediately after endometrial ablation might prevent subsequent hysterectomies because of persisting uterine bleeding and cyclical pelvic pain or pain that arises de novo. Hence, we evaluate if the combination of endometrial ablation and an LNG-IUS is superior to endometrial ablation alone in terms of reducing subsequent rates of hysterectomy at two years following the initial ablative procedure. METHODS/DESIGN: We perform a multicentre randomised controlled trial in 35 hospitals in the Netherlands. Women with heavy menstrual bleeding, who opt for treatment with endometrial ablation and without contraindication for an LNG-IUS are eligible. After informed consent, participants are randomly allocated to either endometrial ablation plus LNG-IUS or endometrial ablation alone. The primary outcome is the hysterectomy rate at 24 months following endometrial ablation. Secondary outcomes include women's satisfaction, reinterventions, complications, side effects, menstrual bleeding patterns, quality of life, societal costs. DISCUSSION: The results of this study will help clinicians inform women with HMB who opt for treatment with endometrial ablation about whether concomitant use of the LNG-IUS is beneficial for reducing the need for hysterectomy due to ongoing bleeding and/or pain symptoms. Trial registration Dutch Trial registration: NL7817. Registered 20 June 2019, https://www.trialregister.nl/trial/7817 .

Hysteroscopic Access and Uterine Cavity Evaluation 12 Months after Endometrial Ablation with the Cerene Cryotherapy Device.

STUDY OBJECTIVE: To evaluate whether physical access and the ability to systematically assess the postablation uterine cavity were preserved at 12 months after endometrial ablation with the Cerene cryotherapy device (ChannelMedsystems, Emeryville, CA). DESIGN: A prospective, multicenter, single-arm study. SETTING: In the clinic at 8 US sites and outpatient hospital setting at 2 sites in Canada and 1 site in Mexico. PATIENTS: A total of 230 (of 242) subjects continued in the study at the Month 12 visit after ablation. Two hundred twenty-three subjects were available for a diagnostic hysteroscopic evaluation. INTERVENTIONS: Subjects who had previously been treated with a 2.5-minute cryoablation of the endometrium utilizing the Cerene device underwent a diagnostic hysteroscopy at the Month 12 follow-up visit. MEASUREMENTS AND MAIN RESULTS: The uterine cavity was accessible in 220 of 223 subjects (98.7%) and not accessible in 3 (1.3%) because of pain (n = 2) and cervical stenosis (n = 1). Visualization of the uterine cavity was possible in 204 of 220 subjects (92.7%) with one or both tubal ostia identified in 89.2% (182 of 204) of subjects. Both tubal ostia were visible in 160 of 204 subjects (78.4%) and one ostium in 22 of 204 subjects (10.8%). The cavity was not visualized in the remaining 16 of 220 subjects (7.2%) because of intrauterine adhesions (n = 14), technical difficulties (n = 1), or menstruation (n = 1). In 95.6% (195 of 204) of subjects where the cavity was visualized, the hysteroscopic view was judged adequate to evaluate the uterine cavity for pathologic change. No significant complications occurred during the hysteroscopic evaluations. CONCLUSION: This is the largest study to date conducted to hysteroscopically evaluate the postablation uterine cavity. Uterine cavity assessment with in-office hysteroscopy 1 year after the use of the Cerene cryotherapy device is attainable, enabling both diagnostic and therapeutic procedures within the endometrial cavity.

Evaluation of Hysteroscopic Endometrectomy: A Reappraisal.

Endometrial ablation can be performed using a variety of techniques, including resectoscopic or non-resectoscopic approaches. In this study, we compared 2 resectoscopic endometrial ablation techniques. The first technique was rollerball coagulation followed by endometrectomy (type A; n = 103), and the second was the reverse (type B; n = 107). Besides excessive bleeding in 4 cases, the procedures were uneventful in both groups of patients. We did not encounter uterine perforation or cervical laceration. Satisfaction rates were 97% and 99% with an overall hysterectomy rate of 2.9%. These results compared favorably with those in the literature. The results of our study show that hysteroscopic endometrectomy is effective with few associated complications.

Subcutaneous etonogestrel implant combined with endometrial ablation for the treatment of adenomyosis: two case reports.

Adenomyosis is a common disease that affects many premenopausal women. Two patients with adenomyosis, aged 51 and 42 years, presented with dysmenorrhea and increased menstrual volume. They refused laparoscopy or laparotomy surgery and were not eligible for the levonorgestrel-releasing intrauterine system (LNG-IUS). The first patient underwent endometrial ablation and subcutaneous etonogestrel (ENG)-releasing implant placement at the same time. Her symptoms of dysmenorrhea and heavy menstruation improved significantly. When serum follicle-stimulating hormone (FSH) and estradiol (E2) levels suggested menopause, the ENG-releasing implant was removed. However, her abdominal pain recurred and was relieved by medication. For the second patient, an ENG-releasing implant was placed first, and her dysmenorrhea and heavy menstrual volume were relieved. However, the bleeding pattern changed from regular bleeding to prolonged bleeding, which troubled the patient. Endometrial ablation was performed 4 months later to solve the problem. Both patients had improved symptoms and were satisfied with the treatment. For patients with adenomyosis who refuse surgery and are not candidates for the use of LNG-IUS, an ENG-releasing implant combined with endometrial ablation may be an effective alternative.

Resectoscopic Surgery Part III: Advanced Resectoscopic Surgery.

In this final section of our three-part series, we will apply the basic and intermediate skills described in the first two parts to advance the gynecologist's skills to accomplish the most demanding of resectoscopic surgical challenges. In Part I of this series, we reviewed the benefits of the continuous flow gynecologic resectoscope (CFGR) and how the motivated gynecologist can assemble an operative team and overcome the impediments to learning the use of this versatile and minimally invasive instrument. In this first section, we outlined and analyzed basic resectoscopic surgery-endometrial ablation, the resection of small submucous myomas and endometrial polyps, as well as the treatment of mild Asherman's syndrome and the removal of retained products of conception. In Part II-intermediate level resectoscopic surgery-we introduced procedures such as endomyometrial resection, the resection of intermediate-size submucous leiomyomas, hysteroscopic metroplasty, and endocervical resection. Though it is not considered an absolute requirement to accomplish procedures at this level, sonographic guidance was introduced in preparation for more challenging cases. In Part III, the author reviews advanced resectoscopic procedures in which sonographic guidance is a requirement for the management of severe intrauterine adhesions and late-onset endometrial ablation failures, the management of FIGO Type 3 and 4 intramural myomas, as well as large submucous myomas.

Safety and efficacy of microwave endometrial ablation for patients with previous uterine surgery: a pilot study.

MEA (microwave endometrial ablation) is a treatment that can control hypermenorrhea. With the increase in the number of caesarean sections and myomectomies, an increasing number of patients with MEA have undergone previous incision of the uterine myometrium. Uterine perforation is major complication. Here we compared the incidence of complications and recurrence between groups with or without previous uterine surgery. 35 patients who underwent MEA were enrolled in the study. We assessed the thickness of uterine myometrium by MRI and transvaginal ultrasonography (TV-US). 12 patients (34%) had previous uterine surgery; Among 12 patients with previous uterine surgery, 6 (50%) showed thinning of the myometrium. No patient showed any complications. There was no difference in recurrence rate between two groups (1/12 = 8% and 2/23 = 8%, respectively). MEA can be performed safely and effectively even for patients with previous uterine surgery.IMPACT STATEMENTWhat is already known on this subject? MEA (microwave endometrial ablation) is a treatment that can control hypermenorrhea.A few serious complications have been reported, including uterine perforation and intestinal injury. There have been no collective reports on women with a history of uterine surgery, and the decision to perform MEA and the detailed procedures have not been clarified.What do the results of this study add? No patient who received MEA showed any complication regardless of previous uterine surgery. There was no difference in recurrence rate of hypermenorrhea between groups with and without previous uterine surgery. MEA could be performed safely and effectively in patients with previous uterine surgery preoperative imaging and intraoperative ultrasoundsWhat are the implications of these findings for clinical practice and/or further research? Curently, with the increase in the number of caesarean sections and myomectomies, the increasing number of patients with MEA have undergone previous incision of the uterine myometrium and this causes thinning of the myometrium. MEA can be safely performed without losing any therapeutic effect, even in patients with a history of uterine surgery, by using MRI and TV-US as preoperative evaluations.

Re-intervention and patient satisfaction rates following office radiofrequency endometrial ablation: a comparative retrospective study of 408 cases.

This retrospective study assessed the efficacy and long-term satisfaction of radiofrequency endometrial ablation outside the context of clinical trials in 408 women, and compared the outcome between office-setting (211, 52%) and day-case procedures under general anaesthetics (197, 48%). The Kaplan Meir time-to-event analysis showed that the cumulative number of women undergoing surgical re-intervention was 32 with a probability of 9.4% (95% CI: 6.3 - 12.5%) at 2-years, and 45 with a probability of 14.5% (95% CI: 10.3 - 18.2%) at 5-years. There was no statistically significant difference in the re-intervention rate between office and day-case groups (HR = 0.7, 95% CI: 0.68 - 3.1, p = .3). The satisfaction rate, measured by Visual Analogue Scale, was not statistically different (p = .5) between office (109; 80.7%) and day-case (96; 82.8%) groups. This study showed lower surgical re-intervention rate than previously reported in observational studies, and high rates of long-term women satisfaction. The outcomes were similar in office and day-case settings.Impact statementWhat is already known on this subject? Previous studies have shown the safety and effectiveness of radiofrequency endometrial ablation for treating heavy periods. However, studies investigating it, outside clinical trials, either included a small sample size, a short-term follow-up, poor reporting so that it is impossible to judge whether some women underwent re-intervention in another centre, failed to discriminate in analysis between second-generation techniques, or assessed only short-term satisfaction.What do the results of this study add? This is the largest series reported from a single centre and the first study reporting long-term satisfaction in women, outside clinical trials. Surgical re-intervention was used as the primary outcome measure which is an objective measure rather than the change in the monthly flow which is rather subjective. More importantly, the study records the similarity, in the outcome and women's satisfaction rate, between office and day-case procedures under general anaesthetics.What are the implications of these findings for clinical practice and/or further research? Endometrial ablation service is widely implemented in office-setting in the UK. We hope the result of this study encourages implementation on a larger scale in office across centres in the world with its multiple advantages both to women and service alike.

Efficacy of point-of-care thermal ablation among high-risk human papillomavirus positive women in China.

Thermal ablation is a point-of-care ablative treatment technique for cervical intraepithelial neoplasia (CIN). However, limited information is available about its efficacy in low- and middle-income countries. We evaluated the efficacy of thermal ablation in treatment of CIN detected through high-risk human papillomavirus (HPV) screening in China. Women positive on high-risk HPV and having colposcopically suspected lesions eligible for ablation underwent colposcopy, biopsy and thermal ablation in one visit. Women ineligible were recalled for large loop excision of transformation zone (LLETZ) when histopathology results were high-grade CIN. Posttreatment follow-up at 6 months or more was with HPV test and cytology followed by colposcopy and biopsy for HPV and/or cytology-positive women. Cure was defined as either negative cytology and HPV test or absence of histopathology proved CIN in any positive women. Of total 218 HPV-positive women treated with thermal ablation (n = 170) or LLETZ (n = 48), 196 reported for follow-up evaluation. For women with histologically confirmed CIN at baseline (thermal ablation-104; LLETZ-38), cure rates were 84.6% for thermal ablation and 86.8% for LLETZ. Cure rates after thermal ablation were 90.3% for CIN grade one (CIN1) and 76.2% for CIN grade two or worse (CIN2+). HPV clearance rate was 80.4% in women undergoing thermal ablation, which was lower for HPV16/18 compared to other oncogenic types (67.6% vs 85.7%). HPV test had a negative predictive value (NPV) of 98.7% to detect CIN2+ at follow-up and the positive predictive value (PPV) was 40.4%. Thermal ablation is effective to treat CIN as well as to clear the high-risk HPV infection. HPV test has high PPV and NPV in following up patients posttreatment.

Levonorgestrel-releasing intrauterine system versus endometrial ablation for heavy menstrual bleeding.

BACKGROUND: Heavy menstrual bleeding affects the physical functioning and social well-being of many women. The levonorgestrel-releasing intrauterine system and endometrial ablation are 2 frequently applied treatments in women with heavy menstrual bleeding. OBJECTIVE: This study aimed to compare the effectiveness of the levonorgestrel-releasing intrauterine system with endometrial ablation in women with heavy menstrual bleeding. STUDY DESIGN: This multicenter, randomized controlled, noninferiority trial was performed in 26 hospitals and in a network of general practices in the Netherlands. Women with heavy menstrual bleeding, aged 34 years and older, without a pregnancy wish or intracavitary pathology were randomly allocated to treatment with either the levonorgestrel-releasing intrauterine system (Mirena) or endometrial ablation, performed with a bipolar radiofrequency device (NovaSure). The primary outcome was blood loss at 24 months, measured with a Pictorial Blood Loss Assessment Chart score. Secondary outcomes included reintervention rates, patient satisfaction, quality of life, and sexual function. RESULTS: We registered 645 women as eligible, of whom 270 women provided informed consent. Of these, 132 women were allocated to the levonorgestrel-releasing intrauterine system (baseline Pictorial Blood Loss Assessment Chart score, 616) and 138 women to endometrial ablation (baseline Pictorial Blood Loss Assessment Chart score, 630). At 24 months, mean Pictorial Blood Loss Assessment Chart scores were 64.8 in the levonorgestrel-releasing intrauterine system group and 14.2 in the endometrial ablation group (difference, 50.5 points; 95% confidence interval, 4.3-96.7; noninferiority, P=.87 [25 Pictorial Blood Loss Assessment Chart point margin]). Compared with 14 women (10%) in the endometrial ablation group, 34 women (27%) underwent a surgical reintervention in the levonorgestrel-releasing intrauterine system group (relative risk, 2.64; 95% confidence interval, 1.49-4.68). There was no significant difference in patient satisfaction and quality of life between the groups. CONCLUSION: Both the levonorgestrel-releasing intrauterine system and endometrial ablation strategies lead to a large decrease in menstrual blood loss in women with heavy menstrual bleeding, with comparable quality of life scores after treatment. Nevertheless, there was a significant difference in menstrual blood loss in favor of endometrial ablation, and we could not demonstrate noninferiority of starting with the levonorgestrel-releasing intrauterine system. Women who start with the levonorgestrel-releasing intrauterine system, a reversible and less invasive treatment, are at an increased risk of needing additional treatment compared with women who start with endometrial ablation. The results of this study will enable physicians to provide women with heavy menstrual bleeding with the evidence to make a well-informed decision between the 2 treatments.

Vascular Pseudoinvasion After Endometrial Ablation.

Vascular pseudoinvasion or displacement of tumor or normal endometrial tissue is a potential pitfall in uterine pathology. The proposed mechanisms of this phenomenon are mostly associated with the uterine manipulator used during minimally invasive hysterectomies. The aim of this report is to describe vascular pseudoinvasion in a still unreported setting, that of a postendometrial ablation hysterectomy, and to provide a summary of studies dealing with artifactual or nonmalignant myometrial vessel involvement by normal or neoplastic endometrial tissue.

The levonorgestrel intrauterine system versus endometrial ablation for heavy menstrual bleeding: a cost-effectiveness analysis.

OBJECTIVE: To evaluate the costs and non-inferiority of a strategy starting with the levonorgestrel intrauterine system (LNG-IUS) compared with endometrial ablation (EA) in the treatment of heavy menstrual bleeding (HMB). DESIGN: Cost-effectiveness analysis from a societal perspective alongside a multicentre randomised non-inferiority trial. SETTING: General practices and gynaecology departments in the Netherlands. POPULATION: In all, 270 women with HMB, aged ≥34 years old, without intracavitary pathology or wish for a future child. METHODS: Randomisation to a strategy starting with the LNG-IUS (n = 132) or EA (n = 138). The incremental cost-effectiveness ratio was estimated. MAIN OUTCOME MEASURES: Direct medical costs and (in)direct non-medical costs were calculated. The primary outcome was menstrual blood loss after 24 months, measured with the mean Pictorial Blood Assessment Chart (PBAC)-score (non-inferiority margin 25 points). A secondary outcome was successful blood loss reduction (PBAC-score ≤75 points). RESULTS: Total costs per patient were €2,285 in the LNG-IUS strategy and €3,465 in the EA strategy (difference: €1,180). At 24 months, mean PBAC-scores were 64.8 in the LNG-IUS group (n = 115) and 14.2 in the EA group (n = 132); difference 50.5 points (95% CI 4.3-96.7). In the LNG-IUS group, 87% of women had a PBAC-score ≤75 points versus 94% in the EA group (relative risk [RR] 0.93, 95% CI 0.85-1.01). The ICER was €23 (95% CI €5-111) per PBAC-point. CONCLUSIONS: A strategy starting with the LNG-IUS was cheaper than starting with EA, but non-inferiority could not be demonstrated. The LNG-IUS is reversible and less invasive and can be a cost-effective treatment option, depending on the success rate women are willing to accept. TWEETABLE ABSTRACT: Treatment of heavy menstrual bleeding starting with LNG-IUS is cheaper but slightly less effective than endometrial ablation.