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Related Experiment Video

Updated: May 22, 2026

Endoscopy Guided Photoablation of Endometrial Cysts using a 980 nm Laser with a Contact Fiber in Mares
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Second generation endometrial ablation techniques for heavy menstrual bleeding: network meta-analysis.

J P Daniels1, L J Middleton, R Champaneria

  • 1University of Birmingham, Clinical Trials Unit, Birmingham B15 2TT, UK. j.p.daniels@bham.ac.uk

BMJ (Clinical Research Ed.)
|April 25, 2012
PubMed
Summary

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Second generation endometrial ablation techniques like bipolar radiofrequency and microwave ablation are more effective for treating heavy menstrual bleeding than thermal balloon or free fluid ablation, leading to higher amenorrhea rates.

Area of Science:

  • Gynecology
  • Minimally Invasive Surgery
  • Reproductive Medicine

Background:

  • Heavy menstrual bleeding (HMB) significantly impacts women's quality of life.
  • Medical treatments for HMB often have limited efficacy or side effects.
  • Second-generation endometrial ablation techniques offer minimally invasive treatment options for HMB.

Purpose of the Study:

  • To compare the relative effectiveness of various second-generation endometrial ablation techniques for treating HMB.
  • To evaluate outcomes including amenorrhea, reduction in heavy bleeding, and patient satisfaction.

Main Methods:

  • A network meta-analysis was conducted on 19 randomized controlled trials (RCTs) involving 3287 women.
  • Studies included second-generation endometrial ablation techniques for HMB unresponsive to medical treatment.

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Last Updated: May 22, 2026

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  • Primary outcomes were amenorrhea, heavy bleeding, and patient dissatisfaction.

    • Main Results:

    • Bipolar radiofrequency and microwave ablation showed higher amenorrhea rates than thermal balloon ablation.
    • Free fluid ablation was associated with increased rates of heavy bleeding compared to radiofrequency and microwave ablation.
    • Endometrial laser intrauterine thermotherapy demonstrated the highest amenorrhea rates among less common devices.

    Conclusions:

    • Bipolar radiofrequency and microwave ablative devices are more effective than thermal balloon and free fluid ablation for HMB.
    • Second-generation endometrial ablation offers varied efficacy depending on the specific technique used.
    • Further research may clarify optimal device selection for individual patient needs.