Yukinori Tsuruta

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Medical Education of Doctors who are not Specialists in Vestibular Disorders on the Diagnosis and Treatment of Benign Paroxysmal Positional Vertigo

Nippon Jibiinkoka Gakkai Kaiho (2017)

Takao Imai Suetaka Nishiike Kazuo Oshima Yukinori Tsuruta Yuya Ueno

めまいの診療を専門としない医師 (非めまい専門医) 3名の良性発作性頭位めまい症 (Benign paroxysmal positional vertigo, 以下 BPPV) 患者に対する診療を確認し, 後に正しく指導した. 2度目の頭位・頭位変換眼振検査にて初めて眼振が観察され, BPPVと診断できている場合があった. reverse Dix-Hallpike 法でのみしか頭位変換眼振が誘発できなかった場合や下眼瞼向きの頭位眼振が観察されていた場合は正確な診断ができていなかった. 上級医師は非めまい専門医に対し, 典型的な BPPV の眼振の性状を詳細に教え, カルテ記載のみならず眼球動画も確認しなければならない.

Vestibular disorders

10.3950/jibiinkoka.120.733

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Citations (1)

An Case of Carcinoma of the External Auditory Canal Treated by Super-selective Intra-arterial Chemotherapy after Neck Dissection

Nippon Jibiinkoka Gakkai Kaiho (2021)

Yukinori Tsuruta Yoichiro Tomiyama Hidenori Tanaka Yuya Ueno Satoru Uetsuka

今回, 頸部リンパ節転移を伴う外耳道癌に対して, 先行頸部郭清後に超選択的動注化学放射線療法を施行し, 耳介壊死という合併症を来した症例を経験したため文献的考察を交え報告する. 症例は45歳女性 Pittsburgh 分類の T2 で N2a の病期であった. 手術を第一に提示したが, 整容的観点から希望されず, 超選択的動注化学放射線療法を行った. 血管内治療医・放射線科医と協議の上, 頸部郭清を先行させることになった. 頸部郭清は, できる限り主要血管を丁寧に温存した. 術後14日目から放射線治療を開始し, 18日目に動注1コース目を施行した. 2コース目翌日から耳介の色調に変化を認め, 放射線療法終了後に耳介は壊死に陥った.

Neck dissection

10.3950/jibiinkoka.124.778

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The resected area of the posterior wall of the external auditory canal during transcanal endoscopic ear surgery for cholesteatoma

Auris Nasus Larynx (2016)

Takao Imai Suetaka Nishiike Kazuo Oshima Hidenori Tanaka Yukinori Tsuruta

10.1016/j.anl.2016.06.003

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Citations (17)

A Case of Congenital Inner Ear Malformation with Recurrent Meningitis

Practica oto-rhino-laryngologica Suppl (2017)

Suetaka Nishiike Takahiro Michiba Yoshiyuki Ozono Kazuo Oshima Satoru Uetsuka

We repaired a cerebrospinal fluid (CSF) leak in a 27-year-old woman who had undergone primary repair surgery for recurrent meningitis when she was 4 years old. Twenty-three years later, she once again developed meningitis after giving birth to her first child via a vaginal delivery. At presentation in our clinic, her pure tone audiometry showed left ear deafness. A temporal bone computed tomography examination showed an inner ear malformation in her left ear. Because a recurrence of the CSF leakage was suspected, we performed an exploratory tympanotomy on her left ear. We found a partial bony defect of the stapes foot plate, from which a CSF leak had occurred. We removed the stapes and filled the inner ear with small, alternating pieces of temporal muscle and cartilage through the vestibular window. The patient’s postoperative course was uneventful, and there have been no signs of recurrence as of 2 years after the operation.

Oval window

Cerebrospinal fluid leak

Presentation (obstetrics)

10.5631/jibirinsuppl.149.14

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Citations (1)

Gadolinium-enhanced inner ear magnetic resonance imaging for evaluation of delayed endolymphatic hydrops, including a bilateral case

Acta Oto-Laryngologica (2016)

Munehisa Fukushima Ryohei Oya Hitoshi Akazawa Yukinori Tsuruta Hidenori Inohara

Conclusion The data suggests that gadolinium-enhanced inner ear MR imaging is useful for diagnosis of delayed endolymphatic hydrops (DEH) because it is independent of inner ear function, and the size of the affected endolymphatic space is clearly enlarged. Objective This study was performed to semi-quantitatively evaluate the endolymphatic space in patients with all types of DEH using gadolinium-enhanced inner ear magnetic resonance (MR) imaging. Patients and methods Seven patients (age range = 21–77 years; five female, two male) with ipsilateral DEH (n = 5), contralateral DEH (n = 1), and bilateral DEH (n = 1). All patients underwent 3T MR imaging 4 h after intravenous injection of gadolinium. Software was used to determine the size of the endolymphatic space. Pure tone audiometry and caloric testing using an electronystagmogram were carried out. Results One side of the endolymphatic space was dominantly extended in patients with ipsilateral DEH, and both sides of the space were extended in patients with contralateral and bilateral DEH. In patients with ipsilateral DEH, the volume ratio of endolymph to vestibule was 2.5–4.3-times that in the unaffected ear. The volume ratio of endolymph to vestibule was nearly equal in patients with contralateral and bilateral DEH.

Endolymph

Endolymphatic hydrops

Vestibule

10.3109/00016489.2015.1129554

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Citations (11)

T-sheet Stent after Endoscopic Dacryocystorhinostomy

Nihon Bika Gakkai Kaishi (Japanese Journal of Rhinology) (2016)

Suetaka Nishiike Takao Imai Kazuo Oshima Hidenori Tanaka Yukinori Tsuruta

涙嚢鼻腔吻合術(DCR)では,術後に涙管チューブを上下涙点から挿入し,涙嚢開窓部を通して鼻内に留置することが多い。我々は以前から内視鏡下に涙嚢を鼻腔から開窓したのちに同部にT型シートを留置している。この方法では,涙点の操作は必要ないため,耳鼻咽喉科単独で容易にDCRが行える利点がある。手技として,鼻腔側壁粘膜に切開を加え粘膜弁を剥離し,ドリルにて上顎骨前頭突起および涙骨を削開し,涙嚢から鼻涙管にかけて露出したのち,垂直に切開を加え観音開きにし,涙嚢開窓部にT字型に作成したペンローズドレーンを留置する。最後に形成した粘膜弁にて覆う。シートは2週間から1ヵ月で抜去している。経過を追えた17例20側に対して検討を行った。術後の再発例は2側であり,成功率は90%であった。DCRにおけるT型シート留置術は,耳鼻咽喉科医にとって手技として容易であり,勧められる方法である。

10.7248/jjrhi.55.524

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A case of Allergic Fungal Rhinosinusitis with Bilateral Infraorbital Nerve Enlargement

Nihon Bika Gakkai Kaishi (Japanese Journal of Rhinology) (2024)

Shuya Tatsuki Yukinori Tsuruta Masaki Hayama

Infraorbital nerve

Chronic Rhinosinusitis

10.7248/jjrhi.63.507

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A Case of Endonasal Endoscopic Surgery for Intraorbital Metastasis of Gastric Ring Cell Carcinoma

Ear Nose & Throat Journal (2020)

Yukinori Tsuruta Yohei Maeda Yoshiyuki Kitaguchi Masaki Hayama Satoshi Nojima

Gastric signet ring cell carcinoma has well-known metastatic features, including peritoneal dissemination and carcinomatous lymphangitis of the lung, but no intraorbital metastases were reported previously. A woman in her 60s developed left eye pain, sudden vision loss, and headache 12 years after gastric cancer treatment. Symptoms did not improve despite steroid pulses. Craniotomy showed no malignant findings. The patient was referred to our department for symptomatic relief and biopsy due to the lack of a definitive diagnosis and no improvement in her ocular pain. Endonasal endoscopic surgery was performed for diagnostic purposes and to relieve symptoms through orbital decompression. Preoperative computed tomography examination revealed a tumor at the left medial orbit, extending to the orbital apex. Orbital decompression through the open left medial orbital wall was performed with biopsy of the intraorbital tumor. Pathological findings were consistent with metastatic signet ring cell carcinoma. Pain and subjective improvement of visual acuity were noted the day after surgery. Twelve months postoperatively, diplopia remains, but there has been no worsening of symptoms.

Exophthalmos

10.1177/0145561320943372

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Citations (6)