Microwave endometrial ablation at a frequency of 2.45 GHz for menorrhagia: Analysis of treatment results at a single facility

Kentaro Nakayama, Tomoka Ishibashi, Masako Ishikawa, Atsuko Katagiri, Hiroshi Katagiri, Kouji Iida, Naomi Nakayama, Kohji Miyazaki
Journal of Obstetrics and Gynaecology Research · 2013 · vol. 40(1) , pp. 224–229 · doi:10.1111/jog.12163 · PMID:24102932 · W1545381033
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Microwave endometrial ablation at 2.45 GHz effectively reduced menorrhagia, dysmenorrhea, and improved patient satisfaction in 76 women, with 34% achieving amenorrhea and low recurrence rates.

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Abstract

AIM: We aimed to evaluate the efficacy of microwave endometrial ablation at a frequency of 2.45 GHz in women with menorrhagia. This method has been attracting attention as an alternative to hysterectomy in the treatment of functional and organic menorrhagia. MATERIAL AND METHODS: We performed microwave endometrial ablation in 103 women with menorrhagia between August 2007 and October 2012. All patients had completed child bearing. We evaluated the efficacy of microwave endometrial ablation using a visual analog scale for menorrhagia, dysmenorrhea, and patient satisfaction. We also evaluated the incidence of hypermenorrhea recurrence, amenorrhea, and procedure complications in relation to patients' clinical factors, such as the presence of myoma, adenomyosis, uterine size, and type of bleeding. RESULTS: A total of 76 patients completed the evaluation period. Excessive menstruation improved from a preoperative mean visual analog score of 10, to 1.9 after treatment. Dysmenorrhea improved from a mean score of 4.2, to 1.3, and patient satisfaction had a mean score of 9.0. Hemoglobin levels improved from 10.1 g/dL preoperatively to 12.5 g/dL postoperatively. Four patients experienced recurrence of excessive menstruation. No related clinical factors could be identified for recurrence risk or the occurrence of postoperative infection. A total of 26 patients (34.2%) became amenorrheic; these patients were less likely to have myomata, intramural myomata, and myomata larger than 5 cm. CONCLUSIONS: Microwave endometrial ablation at a frequency of 2.45 GHz is an effective and safe treatment. It should be considered as a standard treatment for conservative therapy-resistant menorrhagia.

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Condition tags

dysmenorrheaadenomyosis

MeSH descriptors

Endometrial Ablation Techniques Menorrhagia Postoperative Complications Adult Amenorrhea Amenorrhea Amenorrhea Amenorrhea Dysmenorrhea Dysmenorrhea Dysmenorrhea Dysmenorrhea Endometrial Ablation Techniques Female Hospitals, University Humans Incidence Japan Japan Menorrhagia

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