miércoles, 31 de enero de 2018

Management of Uterine Fibroids | Effective Health Care Program

Management of Uterine Fibroids | Effective Health Care Program

AHRQ—Agency for Healthcare Research and Quality: Advancing Excellence in Health Care

Management of Uterine Fibroids

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Key Messages

Purpose of Review

To review treatment effectiveness and the risk of leiomyosarcoma (LMS) in women with fibroids.

Key Messages

  • Gonadotropin-releasing hormone (GnRH) agonists, mifepristone, ulipristal, and uterine artery embolism (UAE) reduce fibroid size, and improve symptoms and quality of life. High intensity focused ultrasound reduces fibroid size, but impact on quality of life was not measured. Myomectomy and hysterectomy also improve quality of life. Direct comparisons of interventions provide little evidence.
  • For women in their 30s, the chance of needing retreatment for fibroids within the next 2 years was 6–7 percent after medical treatment or myomectomy and 44 percent after UAE. For older women, the chance was 9–19 percent after medical treatment or UAE and 0 percent after myomectomy.
  • Using data from160 studies, risk of unexpected LMS ranged from less than 1 to 13 of 10,000 surgeries.
  • Survival time appears shorter with power morcellation; however, confidence intervals are wide and overlap with other surgical approaches.

Structured Abstract

Objectives. We assessed the evidence about management of uterine fibroids. Specifically, we sought to determine effectiveness of interventions, risks of harm, and whether individual or fibroid characteristics influence outcomes.
Data sources. We searched MEDLINE® via PubMed® and Embase® to identify publications, as well as reviewed the reference lists of included studies.
Methods. We included studies published in English from January 1985 to September 2016. We identified randomized clinical trials to assess outcomes and harms of interventions. We used data from trials in a meta-analysis to estimate probability and timing of subsequent interventions for fibroids based on initial type of intervention. To describe risk of unrecognized leiomyosarcoma, we included studies that allowed calculation of prevalence of leiomyosarcoma discovered at the time of surgery for masses believed to be fibroids. We also identified publications that indicated operative approaches to removal of leiomyosarcoma tissue and built models to estimate survival. We extracted data, assessed risk of bias, and rated the strength of evidence for informing care.
Results. Of 97 included randomized trials, 43 studies assessed medications, 28 assessed procedures, and 37 assessed surgeries. Gonadotropin-releasing hormone (GnRH) agonists, mifepristone, and ulipristal reduced fibroid size and improved fibroid-related symptoms, including bleeding and quality of life (moderate strength of evidence [SOE] except quality of life for GnRH agonist [low SOE]). Several other medications have promise but are not supported by sufficient evidence. Uterine artery embolization (UAE) (high SOE) as well as high intensity focused ultrasound (low SOE) are effective for decreasing fibroid size/volume. Few other outcomes are well investigated for high intensity focused ultrasound. UAE studies reported improved outcomes for bleeding (high SOE), and quality of life (moderate SOE). Myomectomy and hysterectomy improved quality of life (both low SOE). Few well-conducted trials directly compared different treatment options. No studies were designed to evaluate expectant management, and evidence is insufficient to guide clinical care. Subsequent intervention ranged from 0 to 44 percent in studies that followed women after initial fibroid treatment. At 2-year followup, subsequent intervention rates were lowest for initial medical management and higher for UAE and myomectomy, especially among younger women. No individual characteristics of women or their fibroids were definitely associated with likelihood of intervention benefits or patient satisfaction. These findings were limited by the number and size of available studies. Using data from 160 studies, we estimated that among 10,000 women having surgery for presumed fibroids, between 0 and 13 will have a leiomyosarcoma detected. Of the surgical approaches, the 5-year survival after leiomyosarcoma diagnosis was 30 percent with power morcellation (95% Bayesian credible interval [BCI]: 13% to 61%), 59 percent with scalpel morcellation (BCI: 33% to 84%), and 60 percent with intact removal (BCI: 24% to 98%).
Conclusion. A range of interventions are effective for reducing fibroid size and improving symptoms. Some medications and procedures also improve quality of life. Few studies directly compare interventions. The risk of encountering a leiomyosarcoma at the time of fibroid surgery is low, and the method of fibroid removal may influence survival. Evidence to guide choice of ix
intervention is likely best when applied in the context of individual patient needs and preferences.


Suggested citation: Hartmann KE, Fonnesbeck C, Surawicz T, Krishnaswami S, Andrews JC, Wilson JE, Velez-Edwards D, Kugley S, Sathe NA. Management of Uterine Fibroids. Comparative Effectiveness Review No. 195. (Prepared by the Vanderbilt Evidence-based Practice Center under Contract No. 290-2015-00003-I.) AHRQ Publication No. 17(18)-EHC028-EF. Rockville, MD: Agency for Healthcare Research and Quality; December 2017. www.effectivehealthcare.ahrq.gov/reports/final.cfm. doi: https://doi.org/10.23970/AHRQEPCCER195[link is external].

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