Symptomatic Fibroid Management: Systematic Review of the Literature

Managing Primary Infertility in a Woman With Uterine Fibroids Utilizing Myomectomy and In Vitro Maturation (IVM) of Oocytes

This case report demonstrates the management of primary infertility in a couple: the male was 37 years old and the female was 32 years old. The female had a submucosal uterine fibroid. Later, the female underwent a myomectomy to remove submucosal fibroids in the uterus after two failed intrauterine insemination (IUI) cycles. After six months of her recovery period, she underwent ovum pickup for an in vitro fertilization (IVF) cycle. During the process of ovum pickup (OPU), four oocytes were retrieved: three in the metaphase one (M1) stage and one in the metaphase two (M2) stage. Subsequently, the couple underwent in vitro maturation (IVM) of oocytes, where the M1 stage oocytes were cultured for six hours. The M1 stage oocytes progressed to the M2 stage. These oocytes were then injected with sperm, which resulted in the formation of two blastocysts. These blastocysts were then cryopreserved for three months, and after three months, these frozen embryos were then transferred, leading to the successful conception. The case study evaluates a couple who suffered from infertility. This study includes a treatment of myomectomy and in vitro maturation.

Complications of transvaginal radiofrequency ablation of fibroids: A 5-year experience

Introduction

Transvaginal radiofrequency ablation is a relatively noninvasive approach for the treatment of fibroids in patients who do not wish to undergo conventional surgery. Information on potential complications of this novel technique is very scarce.

Methods

Retrospective, descriptive, epidemiological study of 115 patients who underwent transvaginal radiofrequency ablation of fibroids and for whom complications were recorded.

Results

We performed 115 transvaginal radiofrequency ablation procedures, we recorded a total of 11 complications (9.6%; 95% CI, 3.8-14.8). Of these, 8 (7.0%) were classified as Clavien-Dindo type I, 1 (0.9%,) as type II, and 2 (1.7%) as type IIIb (severe). No other complications were recorded in a year follow-up.

Conclusion

Transvaginal radiofrequency ablation is a treatment option that makes it possible to treat fibroids that are difficult to manage using other techniques. Few associated complications have been described, and most of them are mild.

Surgical management of uterine fibroids

PURPOSE OF REVIEW

Fibroids are benign pelvic masses and constitute the most common gynaecological condition. They create a significant health and social burden to many women because of heavy menstrual bleeding and fibroid pressure symptoms. Many women will be faced with the dilemma of surgical management to improve their symptoms at some point of their reproductive age. The aim of this article is to identify current surgical management of fibroids describing the technical steps, advantages, disadvantages and risks of each method.

RECENT FINDINGS

The surgical management of fibroids remains challenging, as the overall prevalence, the clinical experience and the patient awareness is increasing because of an upgrade in our sonographic and magnetic resonance diagnostic tools. Unfortunately not every patient is able to benefit from tailor-made surgery that holistically evaluates individual needs including fertility aspirations.

SUMMARY

This article provides the most current synopsis of every available surgical modality for fibroid management. Large prospective multicentre cohort studies are needed to definitely determine the most suitable operation for any individual suffering with fibroids; and perhaps artificial intelligence may offer a valuable tool in the future data analysis.

Pre-operative uterine artery embolization before hysterectomy or myomectomy: a single-center review of 53 patients

PURPOSE

To assess outcomes of planned pre-operative uterine artery embolization (UAE) in patients with uterine fibroids at high risk for bleeding prior to hysterectomy or myomectomy.

MATERIALS & METHODS

A retrospective review of 53 consecutive patients who underwent planned UAE followed by surgery from 2004 to 2019 was performed in a subset of patients deemed high risk for bleeding by the referring surgeon due to bulky fibroids and/or adhesions. Characteristics of the largest fibroid, total number of fibroids, embolic agents, estimated blood loss (EBL), complications, and other factors were collected.

RESULTS

53 patients (mean age = 41) had an elective UAE prior to a hysterectomy 24 (45%) or myomectomy 29 (55%). Median interval between UAE & surgery was 21.6 h (range 1.75 h-57 days). Of the myomectomies, 13 (45%) were open, 15 (52%) hysteroscopic and 1 laparoscopic. Mean number of fibroids/patient was 4.1 (SD 1.3), mean fibroid volume was 328 cm3 (range 11-741), and the mean fibroid diameter in longest dimension was 7.4 cm (range 3.2-15). Mean EBL was 90 (SD 99.5 mL). Three (10%) myomectomy patients required blood transfusion. All hysterectomies were via a laparotomy. Mean fibroid volume was 1699 cm3 (range 93-9099 cm3) with a mean maximum diameter of 16.2 cm (range 6.5-29.6) and an average of 2.4 (SD 1.7) fibroids. Mean EBL was 352 (SD 220 mL). Four (17%) hysterectomy patients required an intra- or post-operative blood transfusion. At a mean 1-year follow-up (range 1 month-14 years), 70% of UAE-myomectomy patients and 74% of UAE-hysterectomy patients reported symptom resolution. Three (6%) patients were readmitted: one for osteodiscitis, one wound dehiscence, and one for an infected retained fibroid after myomectomy.

CONCLUSION

Planned pre-operative UAE resulted in intraoperative blood loss similar to "all-comer" myomectomy and hysterectomy patients in the literature. Further studies may elucidate which patients would be the best candidates for this staged treatment paradigm.

Care Delivery for Patients with Leiomyomas: Failures, Real-Life Experiences, Analysis of Barriers, and Proposed Restorative Remedies

In this narrative review, we describe historical and contemporary influences that prevent patients with fibroids from getting appropriate medical care. Using patient stories as examples, we highlight how misogyny on all levels hurts patients and prevents medical teams from doing their best. Importantly, inequity and disparities result in massive gaps in care delivery. We suggest that we, as gynecologists and surgeons, must join public discourse on this topic to highlight the inadequacies of care delivery and the reasons behind it, suggest potential solutions, and join patients and communities in formulating and implementing remedies.

Treatment Patterns in Patients with Uterine Fibroids With and Without a Diagnosis of Heavy Menstrual Bleeding: Results from a Large U.S. Claims Database

Background: This retrospective database analysis describes clinical characteristics and treatment patterns of U.S. women with a diagnosis for uterine fibroids (UF), both with and without heavy menstrual bleeding (HMB). Materials and Methods: Two cohorts aged 18-50 years with an incident UF diagnosis, comprising women with and without claims for HMB (UF-HMB and UF-only), were identified from the IQVIA PharMetrics^® Plus database (January 1, 2010-December 31, 2019). The index date was the first UF claim following diagnosis; treatment patterns were documented for postindex years 1 and 2 and the full duration of postindex follow-up. Also identified were claims for symptoms or signs potentially associated with UF. Outcomes were the proportion of patients treated with pharmacologic therapies of interest and gynecologic procedures. Logistic regression was used to identify factors associated with postdiagnosis hysterectomy and hormonal therapy. Results: A total of 66,313 (71.8%) women were included in the UF-HMB cohort (mean age [standard deviation]) 42.6 [5.4] years), and 26,068 (28.2%) in the UF-only cohort (41.8 [6.3]). Median follow-up was ∼4 years. Pain was the most common symptom (42.7% in patients with UF-HMB and 36.6% with UF-only); also common were abnormal bleeding (15.6%, 11.5%) and fatigue (22.2%, 15.5%). Within 1 year of UF diagnosis, 28.8% and 49.2% of women with UF-HMB and UF-only, respectively, had no claims for relevant pharmacologic or surgical treatment. In logistic regression, multiple factors were associated with a higher likelihood of receiving hysterectomy or hormonal therapy. Conclusions: Patients with UF-HMB were more likely to receive UF treatment, either surgical or pharmacologic, than women with UF-only. Apart from HMB, pain was the most commonly documented symptom of UF.

A feasibility analysis of the ArcBlate MR-guided high-intensity focused ultrasound system for the ablation of uterine fibroids

Purpose

Uterine fibroids are benign gynecologic tumors and commonly occur in women by the age of 50. Women with symptomatic uterine fibroids generally receive surgical intervention, while they do not favor the invasive therapies. To evaluate the feasibility and safety of a novel magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) modality, ArcBlate, in the treatment of uterine fibroids.

Methods

Nine patients with uterine fibroids and one patient with adenomyosis were treated with ArcBlate MRgHIFU. Tumor size and quality of life were evaluated postoperatively at 1 and 3 months by magnetic resonance imaging (MRI) and the 36-Item Short Form Survey (SF-36), respectively.

Results

All patients completed the ArcBlate MRgHIFU procedure and there were no treatment-related adverse effects either during the procedure or during the 3 months of follow-up. Despite limiting the ablation volume to under 50% of the treated fibroid volume as a safety precaution, tumor volumes were markedly reduced in four patients by 15.78–58.87% at 3-month post-treatment. Moreover, SF-36 scale scores had improved at 3 months from baseline by 2–8 points in six patients, indicating relief of symptoms and improved quality of life.

Conclusion

This study evidence demonstrates the safety and feasibility of ArcBlate MRgHIFU and suggests its potential for treating uterine fibroids.

Post-Market Safety of Laparoscopic Ultrasound-Guided Radiofrequency Ablation

Background and Objectives

Postoperative safety outcomes with laparoscopic intra-abdominal ultrasound-guided radiofrequency ablation, as performed by gynecologic surgeons new to the procedure, were evaluated and compared to the premarket, pivotal study. Post-procedure feedback from surgeons was reported.

Methods

This was a post-market, prospective, single-arm analysis with 4 to 8 weeks follow-up among surgeons (n = 29) with varying levels of laparoscopic surgery experience participating in the ongoing, multinational Treatment Results of Uterine Sparing Technologies randomized clinical trial. Patients were premenopausal adult women (n = 110) desiring uterine-conserving treatment for symptomatic fibroids. During run-in, surgeons received proctored training. Following training, and after performing ≥ 2 procedures, surgeons provided self-assessment and feedback using a standardized form.

Results

Surgeons performed 105 procedures with 100 per-protocol patients. The average number of proctored cases per surgeon was 2.48. No acute (≤ 48 hours) serious adverse events occurred (0/101, 0.0%) compared with 2 acute serious adverse events in the premarket study (2/137, 1.46%). Both studies reported 1 near-term (∼30 days) serious adverse event (< 1% for both). In this study, the near-term complication was fever of unknown origin requiring hospitalization related to uterine entry/manipulation. This was categorized as probably device-related; the patient was treated with antibiotics and discharged. Twenty-six surgeons completed the evaluation form; none reported experiencing problems with the procedure.

Conclusion

Minimally invasive gynecologic surgeons can learn laparoscopic intraabdominal ultrasound-guided radiofrequency ablation and perform it safely (in terms of acute and near-term serious adverse events) after ≥ 2 proctored cases. There were no significant differences in safety outcomes compared to the premarket, pivotal study.

Vilaprisan, a New Selective Progesterone Receptor Modulator in Uterine Fibroid Pharmacotherapy-Will it Really be a Breakthrough?

BACKGROUND

Vilaprisan (VPR) is a new orally available selective progesterone receptor modulator (SPRM), with anti-proliferative activity against uterine fibroids (UFs). It definitively causes suppression of ovulation and inhibition of proliferation of endometrial, myometrial and UF cells.

PURPOSE

This review aims to summarize current knowledge on VPR from all studies, including clinical trials, conducted to date and to contextualize the potential role of VPR in future medical regimens for the treatment of UFs.

METHODS

We performed a literature search in PubMed US National Library of Medicine and Google Scholar databases. Both databases were extensively searched for all original and review articles/book chapters as well as congress abstracts published in English until July 2019. The use of VPR for UF therapy was identified by using the keywords: "uterine fibroids" and "vilaprisan".

RESULTS

In phase I and II clinical trials, VPR was shown to be effective in ameliorating UF-related clinical symptoms, especially abnormal or excessive uterine bleeding and in shrinking UFs. The tolerability of VPR is roughly similar to that of ulipristal acetate (UPA) and it tends to be more favorable than that of GnRH-agonists.

CONCLUSION

Presently, all trials examining the utility of VPR for the treatment of UF are halted; likely, due to the recently reported cases of hepato-toxicity with UPA, in addition to non reassuring toxicology results from preclinical long-term testing on rodents, carried out in parallel with late stage testing on humans. An accurate summary of robust data related to the safety of VPR is urgently needed to draw definitive conclusions on the future clinical development of this drug for UF therapy.

Cross-talk between Janus kinase-signal transducer and activator of transcription pathway and transforming growth factor beta pathways and increased collagen1A1 production in uterine leiomyoma cells

OBJECTIVE

To characterize the potential interaction between interleukin-6 (IL6), Janus kinase (JAK)-signal transducer and activator of transcription (STAT)-3 (JAK/STAT3) pathway, and Transforming growth factor beta (TGFβ)-3 , and to determine whether such cross-talk was a contributing factor in the dysregulation of type I collagen production in leiomyomas.

DESIGN

Laboratory study.

SETTING

University research laboratory.

PATIENTS

None.

INTERVENTIONS

Exposure of leiomyoma and myometrial cell lines to IL6 and STAT3 activators/inhibitors. Western immunoblot analysis and immunohistochemistry.

MAIN OUTCOME MEASURES

Expression of STAT3, pSTAT3, SOCS3, COL1A1, and TGFb3.

RESULTS

We observed that IL6 increased pSTAT3 as well as collagen1A1 in uterine leiomyoma cells. Direct activation of the JAK/STAT3 pathway increased collagen1A1 production in leiomyoma cells, whereas inhibition of the pathway significantly decreased collagen1A1 production. We further observed that modulation of the JAK/STAT3 pathway also increased the expression of TGFβ3 protein. Leiomyoma cells exposed to TGFβ3 demonstrated a significant decrease in pSTAT3 protein. Myometrial cells demonstrated a less sensitive response to STAT3 modulation and collagen production.

CONCLUSION

Cross-talk between the TGFβ pathway and JAK/STAT3 pathway contributes to the fibrotic nature of uterine leiomyomas.

Characterization of the role of Activator Protein 1 signaling pathway on extracellular matrix deposition in uterine leiomyoma

OBJECTIVE

To characterize the role Activator Protein 1 (AP 1) family members play in mediating extracellular matrix deposition in uterine leiomyoma.

DESIGN

Laboratory study.

SETTING

University research laboratory.

INTERVENTION(S)

Exposure of leiomyoma and myometrial cell lines to either an AP 1 inhibitor alone, AP 1 inhibitor plus transforming growth factor (TGF)ß3, or TGFß3 alone.

MAIN OUTCOME MEASURE(S)

Western immunoblot analysis was performed to assess for changes in AP 1 family member protein expression.

RESULT(S)

In patient-matched myometrial and leiomyoma cell lines, the only AP 1 member found to be elevated significantly in leiomyoma compared with myometrium was FOSB (3.47 ± 0.12-fold), whereas others were decreased significantly: FRA1 (0.67 ± 0.02-fold), FRA2 (0.45 ± 0.01-fold), c FOS (0.37 ± 0.01-fold), Phos c FOS (0.19 ± 0.02-fold), Phos c JUN (0.75 ± 0.02-fold), JUNB (0.81 ± 0.04-fold), and JUND (0.65 ± 0.03-fold). c JUN (0.93 ± 0.03-fold) concentration was reduced but at nonsignificant levels. Following stimulation with TGF ß 3, fibronectin (2.16 ± 0.14-fold) and versican (4.71 ± 0.15-fold) protein concentrations were increased at 24 hours. Collagen 1A demonstrated a time-dependent significant increased concentration beginning at 6 hours (1.32 ± 0.01-fold) and increased to (6.49 ± 0.02-fold) at 24 hours. Following treatment with AP 1 inhibitor (SR11302), there were significant reductions in Collagen 1A concentration at 4 hours (0.59 ± 0.03-fold) and 6 hours (0.42 ± 0.05-fold). Activator Protein 1 inhibition did not reduce significantly versican concentration until 6 hours of treatment (0.84 ± 0.04-fold). SR11302 also decreased significantly fibronectin concentration (0.68 ± 0.05-fold) at 8 hours of treatment.

CONCLUSION(S)

Activator Protein 1 signaling is well described in fibrotic diseases, and, herein, we demonstrated that signaling via AP 1 family members promotes extracellular matrix deposition in leiomyoma.

Myomectomy associated blood transfusion risk and morbidity after surgery

OBJECTIVE

To evaluate blood transfusion risks and the associated 30-day postoperative morbidity after myomectomy.

DESIGN

Retrospective cohort study.

SETTING

Not applicable.

PATIENT(S)

Women who underwent myomectomies for symptomatic uterine fibroids (N = 3,407).

INTERVENTION(S)

Blood transfusion during or within 72 hours after myomectomy.

MAIN OUTCOME MEASURE(S)

The primary outcomes were rate of blood transfusion with myomectomy and risk factors associated with receiving a transfusion. The secondary outcome was 30-day morbidity after myomectomy.

RESULT(S)

The overall rate of blood transfusion was 10% (hysteroscopy, 6.7%; laparoscopy, 2.7%; open/abdominal procedures, 16.4%). Independent risk factors for transfusion included as follows: black race (adjusted odds ratio [aOR] 2.27, 95% confidence interval [CI] 1.62-3.17) and other race (aOR 1.77, 95% CI 1.20-2.63) compared with white race; preoperative hematocrit <30% compared to ≥30% (aOR 6.41, 95% CI 4.45-9.23); preoperative blood transfusion (aOR 2.81, 95% CI 1.46-5.40); high fibroid burden (aOR 1.91, 95% CI 1.45-2.51); prolonged surgical time (fourth quartile vs. first quartile aOR 11.55, 95% CI 7.05-18.93); and open/abdominal approach (open/abdominal vs. laparoscopic aOR 9.06, 95% CI 6.10-13.47). Even after adjusting for confounders, women who required blood transfusions had an approximately threefold increased risk for experiencing a major postoperative complication (aOR 2.69, 95% CI 1.58-4.57).

CONCLUSION(S)

Analysis of a large multicenter database suggests that the overall risk of blood transfusion with myomectomy is 10% and is associated with an increased 30-day postoperative morbidity. Preoperative screening of women at high risk for transfusion is prudent as perioperative transfusion itself leads to increased major postoperative complications.

A Prospective Intervention Trial on Tailored Radiofrequency Ablation of Uterine Myomas

Background and Objective: Investigating the use of radiofrequency myolysis (RFM) for the treatment of fibroids through less invasive access by combining transvaginal ultrasound, hysteroscopy and laparoscopy. Materials and Methods: Fifty-four premenopausal women with 106 symptomatic uterine myomas. Patients underwent RFM in three ways: Vaginal Ultrasound-guided RFM (VU-RFM), Laparoscopic RFM (L-RFM) and Hysteroscopic-RFM (H-RFM). The mean patient age was 43 years; 52 symptomatic uterine myomas were subserosal, 44 intramural and 10 submucosal. The outcomes evaluated at 1 and 12 months after RFM were myoma size (volume-diameter), "Uterine Fibroid Symptom and Quality of Life (UFS-QOL)" questionnaire and a 10-point Visual Analogue Scale (VAS). The therapy was completed with a single ablation in all patients, no complication was registered. The average number of fibroids treated per intervention was two with the use of different accesses: 64/106 VU-RFMs (60.4%), 32/106 L-RFMs (30.2%) and 10/106 H-RFMs (9.4%). Results: Volume and diameter of fibroids were significantly reduced by, respectively, 51.3% and 20.1% in the first 30 days post-intervention (p < 0.001) up to a maximum of 73.5% and 37.1% after the second follow-up visit at 12 months (p < 0.001). A similar trend was shown in terms of disability with a progressive and significant reduction of symptoms (menorrhagia, dysmenorrhea, dyspareunia and pollakiuria) demonstrated by percentage variation of UFS-QOL Symptom Severity and VAS scores to -74.3% and -45.3% as well as -84.9% and -74.3%, respectively, at 1 and 12 months after RFM (p < 0.001). An overall improvement in the quality of life was also demonstrated by a significant increase in the UFS-QOL total score of +38.2% in the first 30 days post-intervention up to +44.9% after the second follow-up visit at 12 months (p < 0.001). The overall average surgery time of the RFM for each patient was 48 minutes, and the time to treat each fibroid by Vaginal Ultrasound-guided RFM (23 min) was found to be significantly less than those of laparoscopy or hysteroscopy (respectively 35 and 34 min) (p < 0.05). An electromagnetic virtual needle tracking system (VNTS) was successfully tested during the RFM procedures, and real-time contrast-enhanced ultrasound (CEUS) has proven to be effective in determining the duration of myolysis through the identification of eventual residual areas of enhancement within the fibroids. Conclusion: Radiofrequency can be considered a minimally invasive and safe procedure for the treatment of uterine myomas through the customization and possible combination of transvaginal, laparoscopic or hysteroscopic accesses. The standardization of the ablation technique with pre-intervention biopsy and new technologies such as VNTS and CEUS spares healthy uterine tissue and may change the future management of symptomatic uterine fibroids.

Surgical Intervention for Uterine Fibroids. Our 4-Year Experience and Literature Review: Is It Time to Centralise Care Provision Via Specialist Fibroid Centres?

BACKGROUND

Leiomyomas are common in women of reproductive age, for whom treatment-stratification can be challenging. We assessed factors influencing pre-operative selection of surgical intervention and compare outcomes.

PATIENTS AND METHODS

A literature review was performed and surgical interventions for fibroids at a London hospital (2015-2018) were retrospectively examined. Outcomes assessed were estimated blood loss, length of stay (LOS) and complications. Data were analysed using univariate non-parametric inferential statistics.

RESULTS

A total of 258 cases were identified. Estimated blood loss was statistically significantly lower for laparoscopic versus open myomectomy [200 (interquartile range; IQR)=100-200 vs. 400 (IQR=200-700 ml), p<0.001]. Length of stay was also statistically significantly lower in the laparoscopic cohort compared with open hysterectomy [1 (IQR=1-1) days vs. 2 (IQR=2-3 days)]. Similar results were noted when comparing laparoscopic versus open hysterectomy [167 (IQR=100-200) vs. 500 (IQR=100-750) ml, p<0.001]. No differences in complications were reported across groups. Patients counselled by a surgeon trained in minimally invasive surgery (MIS) opted more frequently for laparoscopy (p<0.01, rho=-0.669). Estimated blood loss during MIS was 225 ml versus 545 ml for non-MIS, and 285 ml for the overall cohort (p<0.01).The length of stay was statistically significantly lower for those treated with MIS (1.37 days) versus other surgeons (2.65 days), or overall cohort (1.63 days) (p<0.01 for all associations).

CONCLUSION

Laparoscopic surgery offers superior short-term outcomes when performed by experienced operators. Multidisciplinary counselling and treatment stratification should be gold-standard practice. Centralisation of care provision in fibroid Centres of Excellence is required.

Epidemiology and management of uterine fibroids

Uterine leiomyomas are one of the most common and yet understudied diseases in women. These tumors, commonly known as fibroids, affect women mainly during their reproductive years and are diagnosed in up to 70% of white women and more than 80% of women of African ancestry during their lifetime. This disease has a profound impact on health care delivery and costs worldwide. Though most women with fibroids are asymptomatic, approximately 30% of them will present with severe symptoms which can include abnormal uterine bleeding, anemia, pelvic pain and pressure, back pain, urinary frequency, constipation, or infertility, and will require intervention. Furthermore, fibroids have been associated with poor obstetrical outcomes. The current options for symptomatic fibroid treatment include expectant, medical, and surgical management, and interventional radiology procedures. This article reviews the recent progress and available management strategies for uterine fibroids and highlights areas where further research is needed to find new therapeutic targets and better personalize treatments.

Mediator Kinase Disruption in MED12-Mutant Uterine Fibroids From Hispanic Women of South Texas

CONTEXT

Mutations in the gene encoding Mediator complex subunit MED12 are dominant drivers of uterine fibroids (UFs) in women of diverse racial and ethnic origins. Previously, we showed that UF-linked mutations in MED12 disrupt its ability to activate cyclin C-CDK8/19 in Mediator. However, validation of Mediator kinase disruption in the clinically relevant setting of MED12-mutant UFs is currently lacking.

OBJECTIVE

The objective of this study was twofold. First, to extend the ethnic distribution profile of MED12 mutations by establishing their frequency in UFs from Hispanic women of South Texas. Second, to examine the impact of MED12 mutations on Mediator kinase activity in patient-derived UFs.

METHODS

We screened 219 UFs from 76 women, including 170 tumors from 57 Hispanic patients, for MED12 exon 2 mutations, and further examined CDK8/19 activity in Mediator complexes immunoprecipitated from MED12 mutation-negative and MED12 mutation-positive UFs.

RESULTS

MED12 exon 2 mutations in UFs from Hispanic women are somatic in nature, predominantly monoallelic, and occur at high frequency (54.1%). We identified a minimal cyclin C-CDK8 activation domain on MED12 spanning amino acids 15 through 80 that includes all recorded UF-linked mutations in MED12, suggesting that disruption of Mediator kinase activity is a principal biochemical defect arising from these pathogenic alterations. Analysis of Mediator complexes recovered from patient UFs confirmed this, revealing that Mediator kinase activity is selectively impaired in MED12-mutant UFs.

CONCLUSIONS

MED12 mutations are important drivers of UF formation in Hispanic women of South Texas. MED12 mutations disrupt Mediator kinase activity, implicating altered CDK8/19 function in UF pathogenesis.

Clinical outcomes and health care utilization pre- and post-laparoscopic radiofrequency ablation of symptomatic fibroids and laparoscopic myomectomy: a randomized trial of uterine-sparing techniques (TRUST) in Canada

Objective

The objective of this study was to compare laparoscopic ultrasound-guided radiofrequency ablation of fibroids (Lap-RFA) and laparoscopic myomectomy in terms of 1) health care utilization and 2) serious complication rates. The secondary objectives were comparison of subject responses to validated symptom and quality-of-life questionnaires. We hypothesized that Lap-RFA health care utilization and clinical outcomes would not be worse than those of laparoscopic myomectomy in the aggregate.

Patients and methods

Post-market, randomized, prospective, multicenter, longitudinal, non-inferiority interventional comparative evaluation of health care utilization and clinical outcomes in premenopausal women with symptomatic uterine fibroids who desired uterine conservation was conducted. Both procedures were planned as outpatient day surgeries. Health care resource utilization was measured during the procedure day and at 1 week, 1 and 3 months post-surgery. Symptom severity and quality of life were based on patients' responses to the Uterine Fibroid Symptom Severity and Quality-of-Life Questionnaire, EuroQol-5D-visual analog scale general health status and menstrual impact questionnaires, and time from work.

Results

Forty-five participants provided written informed consent and were enrolled (Lap-RFA, n=23; myomectomy, n=22) in Canada. Hospitalization time (primary endpoint) was 6.7±3.0 hours for the Lap-RFA group and 9.9±10.7 hours for the myomectomy group (Wilcoxon, p=0.0004). Intraoperative blood loss was lesser for Lap-RFA subjects: 25.2±21.6 versus 82.4±62.5 mL (p=0.0002). Lap-RFA procedures took lesser time than myomectomy procedures: 70.0 versus 86.5 minutes (p=0.018), and Lap-RFA required -34.9% (130 fewer) units of surgical equipment. At 3 months, both cohorts reported the same significant symptom severity reduction (-44.8%; p<0.0001). Lap-RFA subjects also took lesser time from work: 11.1±7.6 versus 18.5±10.6 days (p=0.0193). One myomectomy subject was hospitalized overnight after experiencing a 20-second asystole during the procedure. One Lap-RFA subject underwent a reintervention. The combined per patient direct and indirect costs of the two procedures were comparable: Lap-RFA (CAD $5,224.96) and myomectomy (CAD $5,321.96).

Conclusion

Compared to myomectomy, Lap-RFA is associated with significantly lesser intraoperative blood loss, shorter procedure and hospitalization times, lesser consumption/use of disposable and reusable surgery equipment, reduced health care resource utilization, and faster return to work through 3 months posttreatment. Direct and indirect costs of Lap-RFA and myomectomy are comparable.