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Yasushi Kanaoka
In: Journal of Microwave Surgery · 2005 · vol. 23 , pp. 79–83 · doi:10.3380/jmicrowavesurg.23.79 · W4231141398
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-08 ⓘ

A new curved microwave applicator operating at 2.45 GHz successfully treated menorrhagia in over 50 women with enlarged or distorted uteri, demonstrating safety and efficacy as an alternative to hysterectomy.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-08 · read from full text ⓘ

This paper is a review article describing microwave endometrial ablation (MEA) for menorrhagia, including the development of a thin curved microwave applicator. The authors report that over 50 Japanese women with menorrhagia underwent MEA, and menorrhagia improved in all patients, with no major complications noted. The major caveat is that the account emphasizes preliminary/observational results and does not provide detailed comparative or long-term outcome data in the abstract. Relevance to endometriosis: adenomyosis is explicitly listed as a non-malignant organic cause of menorrhagia for which hysterectomy might be avoidable with MEA, though the paper’s main focus is microwave endometrial ablation technology and its outcomes for menorrhagia.

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Abstract

Microwave endometrial ablation (MEA) is a low invasive technique for menorrhagia resistant to conservative therapy. Since preliminary results of microwave endometrial ablation at a frequency of 9.2 GHz were published in 1995, it has been widely used as an alternative to hysterectomy for treating menorrhagia. The authors have developed a thin curved microwave applicator radiating microwaves at 2.45 GHz, which was applicable to an enlarged uterus with a distorted uterine cavity more than 12 cm in length ; a situation that had been a contraindication for conventional endometrial ablation. More than 50 Japanese women with menorrhagia underwent MEA using the curved applicator. Menorrhagia was improved in all patients and no major complication was encountered. MEA using the curved microwave applicator could safely treat organic menorrhagia in an enlarged uterus with a distorted cavity as well as dysfunctional menorrhagia. Most of hysterectomy for organic menorrhagia caused by non-malignant conditions such as submucous myoma or adenomyosis, may be avoidable by MEA.
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総説／子宮筋腫・子宮腺筋腫 マイクロ波子宮内膜アブレーションによる過多月経の治療 2005 年 23 巻 p. 79-83 詳細 抄録 Microwave endometrial ablation (MEA) is a low invasive technique for menorrhagia resistant to conservative therapy. Since preliminary results of microwave endometrial ablation at a frequency of 9.2 GHz were published in 1995, it has been widely used as an alternative to hysterectomy for treating menorrhagia. The authors have developed a thin curved microwave applicator radiating microwaves at 2.45 GHz, which was applicable to an enlarged uterus with a distorted uterine cavity more than 12 cm in length ; a situation that had been a contraindication for conventional endometrial ablation. More than 50 Japanese women with menorrhagia underwent MEA using the curved applicator. Menorrhagia was improved in all patients and no major complication was encountered. MEA using the curved microwave applicator could safely treat organic menorrhagia in an enlarged uterus with a distorted cavity as well as dysfunctional menorrhagia. Most of hysterectomy for organic menorrhagia caused by non-malignant conditions such as submucous myoma or adenomyosis, may be avoidable by MEA. © 2005 特定非営利活動法人 Microwave Surgery研究会

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adenomyosis

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last seen: 2026-06-04T00:00:01.174412+00:00
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