Evidence map›Paper›PMID 42751433›Full record

ArticleNeurosurgery practice2026

Eustachian Tube Dysfunction Due to Medial Pterygoid Nerve Impairment After Trigeminal Schwannoma Surgery.

Gen Futamura, Takahisa Ohsawa, Takumi Hoshimaru, Masao Fukumura, Yuichiro Tsuji, Ryokichi Yagi, Ryo Hiramatsu, Masahiro Kameda, Naosuke Nonoguchi, Motomasa Furuse and 3 more

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Article in Neurosurgery practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

13 authors.

Gen FutamuraDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Takahisa OhsawaDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Takumi HoshimaruDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Masao FukumuraDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Yuichiro TsujiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Ryokichi YagiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Ryo HiramatsuDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Masahiro KamedaDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Naosuke NonoguchiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Motomasa FuruseDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Shinji KawabataDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Toshihiro TakamiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Masahiko WanibuchiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and importanceEustachian tube dysfunction due to medial pterygoid nerve impairment is a rare complication after trigeminal schwannoma surgery. Eustachian tube dysfunction leads to fluid inside the mastoid air cell, which requires differential diagnosis with cerebrospinal fluid leakage. CLINICAL PRESENTATION: We present a 49-year-old male patient of trigeminal schwannoma. The extradural middle fossa rhomboid approach was performed. The mastoid air cell was opened during the drilling of the middle skull base. After surgery, mastoid air cell fluid was observed. The fluid volume did not increase during hospitalization. However, at 3 months after surgery, the mastoid air cell fluid gradually increased. Otolaryngological examination revealed serous otitis media on the surgical side. Furthermore, opening dysfunction of pharyngeal orifice of eustachian tube due to the medial pterygoid nerve impairment after trigeminal schwannoma surgery was suspected. Tympanotomy was performed, after which the mastoid air cell fluid disappeared.

conclusionEustachian tube dysfunction due to the medial pterygoid nerve impairment is a rare postoperative complication of trigeminal schwannoma. This condition can lead to serous otitis media and increased mastoid air cell fluid.

Indexed as

Cerebrospinal fluid leakageEustachian tube dysfunctionMedial pterygoid nervePseudocerebrospinal fluid rhinorrheaSkull base surgeryTensor veli palatini muscleTrigeminal schwannoma

Identifiers

PMID42751433
PMCPMC13581351

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