末梢性高度顔面神経麻痺に対する経乳突的顔面神経減荷術

熊井 良彦, 伊勢 桃子, 折田 頼尚

doi:10.5631/jibirin.114.753

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Transmastoid Decompression of the Facial Nerve for Severe Peripheral Facial Palsy
末梢性高度顔面神経麻痺に対する経乳突的顔面神経減荷術 : 造影MRI所見と予後との関連
マッショウセイコウドガンメンシンケイマヒニタイスルケイニュウトツテキガンメンシンケイゲンカジュツ : ゾウエイ MRI ショケントヨゴトノカンレン
—Relationship Between the Findings of Contrast-enhanced MRI and the Prognosis—
―造影MRI所見と予後との関連―

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<p>Transmastoid decompression of the facial nerve, one of the treatments used for severe peripheral facial palsy, remains a controversial treatment modality. In this report, we reveal that there was no significant correlation between the enhancing portion of the lesion on MRI and the rate of progression of the palsy, except for the case of the enhancement of the horizontal segment. The hypothesis that “Among patients undergoing transmastoid decompression, cases showing enhancement of the labyrinthine segment on preoperative MRI would show worsening of the paralysis postoperatively as compared to patients who do not show such enhancement on MRI” could not be proven. Additionally, there was also no relationship between lesion enhancement observed on MRI, except for enhancement of the horizontal segment, and the inoperative findings (P=0.048). Based on these perspectives, we assume that transmastoid decompression, without decompression of the labyrinthine segment or fundus of the internal acoustic meatus may be effective for the treatment of severe peripheral facial nerve palsy.</p>

収録刊行物

耳鼻咽喉科臨床

耳鼻咽喉科臨床 114 (10), 753-758, 2021

耳鼻咽喉科臨床学会

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