著者
河野 敏朗 石戸谷 淳一 遠藤 亮 佃 守
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.100, no.11, pp.899-903, 2007-11-01 (Released:2011-10-07)
参考文献数
19
被引用文献数
1 1

We sometimes experience infant cases leading to unexpected deaths due to foreign bodies. It is often difficult to identify the cause or foreign body invasion by asking questions directly to a child. We experienced an infant case of a chopstick passing through the soft palate, reaching the parapharyngeal space near the inner carotid artery circumference. At the first medical examination, we could not detect the tip of the chopstick, in the pharynx. Using 3-directional-CT images, we could locate the tip of the chopstick in the parapharyngeal space near the inner carotid artery circumference. Under general anesthesia, we could remove the tip of the chopstick from the parapharyngeal space near the inner carotid artery with an endoscope trans-orally.It is important to investigate positional conditions between a foreign body and the vessels in the parapharyngeal space. Images such as enhancing 3-directional-CT before the operation is useful.Furthermore, we have to be careful of the late neurosis by pencil-injury in the region and pay close attention to respiratory tract management.
著者
平賀 幸弘 黄 淳一
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.106, no.4, pp.341-346, 2013 (Released:2013-04-01)
参考文献数
21

Anaplastic thyroid carcinoma is a rare and lethal human malignancy. In this paper, we report on a case of a 55-year-old man who had undergone radiation therapy on the cervical region for malignant lymphoma at 14 years of age, and had been consulting our hospital for 19 years. He underwent a left hemithyroidectomy for papillary thyroid carcinoma at the age of 35, and 11 years after that a total thyroidectomy was performed for cervical nodal disease. After the operation he underwent radioiodine therapy twice. Five years after radiotherapy, anaplastic carcinomas arose in the left cervix and the cranium. Soon after complete resections of the tumors, systemic metastases were detected with FDG-PET. Finally, 11 months after the operation, he died in our palliative care unit at the age of 55 due to frequent bleeding from a palatal carcinoma. A review of the literature showed that the age at which the tumor arose, namely the peak of the patient’s life, was earlier than was usually reported. The survival time of 11 months observed in our patient was more than that generally observed in patients with anaplastic carcinoma.
著者
篠原 尚吾 山本 悦生 田辺 牧人 辻 純 宗田 由紀 坂本 達則 金 泰秀 寺下 健洋
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.92, no.7, pp.779-783, 1999-07-01 (Released:2011-11-04)
参考文献数
19
被引用文献数
2 1

Papillary microcarcinomas (PMCs) which are 1.0cm or less in diameter are a specific subgroup of thyroid cancer. As the prevalence of these tumors found in autopsy cases was reported to be 10 to 28.4% in Japan, the necessity of surgical treatment of PMCs has been questioned. However, PMCs are often found in conjunction with advanced metastases in cervical lymph nodes, lung, etc..We reviewed eight cases with PMCs revealed by the presence of cervical metastases over the past 10 years. Five cases were revealed by manifest cervical lymph node metastases. Two of the other three cases were operated on for treatment of metastatic lesions subsequent to other diagnoses, notably a parotid tumor and lateral cervical cyst. The PMCs were revealed in a postoperative histological study of these two cases. The remaining case was discovered incidentally during neck dissection for laryngeal cancer. Preoperative ultrasonography was undertaken in seven cases. Two cases showed multif ocal small high echoic spots without tumors and one case showed no abnormal findings in the thyroid.In all cases, total thyroidectomy, unilateral or bilateral neck dissection and postoperative radioiodine scintigraphy were performed. Multifocal tumors in the thyroid were proven histologically in four cases. In one case, the primary lesion was not found even in a postoperative histological study.In accordance with these observations, PMCs revealed by cervical metastases shoul be treated as advanced thyroid carcinomas.
著者
児嶋 剛 庄司 和彦 池上 聰 鈴木 慎二 岸本 曜 高橋 淳人
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.98, no.12, pp.969-972, 2005-12-01 (Released:2011-10-07)
参考文献数
11

Most malignant thyroid nodules are surgically treated. This report reviews changes in size of malignant thyroid nodules; none of them received any medical and surgical treatment. Three hundred and three nodules were diagnosed as malignant using fine needle aspiration biopsy (FNAB) and ultrasonography from 1997 to 2003. In 17 patients (19 nodules), they were observed for more than 6 months. We examined the transition of their major axis by ultrasonography. Large nodules (>10mm) and nodules in younger patients (age<50) tend to increase in size. As compared with benign nodules, malignant nodules tend to increase in large nodules (>10mm).
著者
児嶋 剛 庄司 和彦 一色 信彦 中村 一博
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.101, no.1, pp.39-43, 2008-01-01 (Released:2011-10-07)
参考文献数
21
被引用文献数
1 1

We report a case of GID (gender identity disorder) of the female-to-male type, where her vocal pitch was lowered to her satisfaction by Thyroplasty type 3. The distress of GID patients derives from the contradiction between their sexual physical features and gender self-consciousness. As to the levels of distress and the means patients select to resolve the problems they face, individual variations are great. The present patient did not want either transsexual surgery or hormonal treatment, but merely her vocal pitch lowered. Thyroplasty type 3 successfully lowered her vocal pitch as desired without any complication. Surgical details and key points were described.
著者
高橋 昭
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.73, no.8special, pp.1404-1421, 1980-08-20 (Released:2011-11-04)
参考文献数
70
著者
那須 隆 小池 修治 鈴木 豊 伊藤 吏 岡崎 慎一 野田 大介 青柳 優
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.97, no.9, pp.819-824, 2004-09-01 (Released:2011-10-07)
参考文献数
25
被引用文献数
6 4

A 1-year-and-1-month-old boy presented with a wooden foreign body in a right cervical lesion after falling down. The foreign body was the broken tip of a wooden chopstick which was penetrating into his neck. No foreign bodies were reliably detected by plain film. We then used helical CT for the diagnosis of the foreign body. A wooden foreign body, 2.2cm long and 2mm in diameter, like a rod, was shown embedded in his neck by reconstructing 3D images of helical CT. The wooden foreign body was removed through an incision of the neck under general anesthesia.In this case, helical CT was helpful in the diagnosis of a radiolucent wooden foreign body in a cervical lesion.
著者
本田 圭司 鎌田 知子 田崎 彰久 畑中 章生
出版者
The Society of Practical Otolaryngology
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.105, no.7, pp.681-685, 2012-07-01

We report a case of burns of the larynx caused by hot food in which emergency airway management was required.<br> A 36-year old male came to the hospital with a sore throat 14 hours after ingesting hot food (takoyaki, a Japanese dumpling containing octopus). Fiberscopic examination revealed mild edema of the aryepiglotic fold. The patient refused hospitalization against medical advice and went home after a corticosteroid injection, but returned to the hospital by ambulance with severe dyspnea the next day (44 hours after the injury). A considerably swollen epiglottis were seen on fiberscopy. Since endotracheal intubation was expected to be difficult, surgical cricothyroidotomy was performed for the relief of the airway obstruction. If a laryngeal burn is suspected, the patient should be hospitalized and observed carefully for 24-48 hours.<br>
著者
北尻 真一郎 田渕 圭作 平海 晴一
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.94, no.1, pp.17-20, 2001-01-01 (Released:2011-11-04)
参考文献数
19

A case of fracture of the stapes footplate with ossicular disruption and perilymph fistula caused by earpick-induced trauma is reported. A 51-year-old female was presented with hearing loss and vertigo just after sticking an ear pick into her left ear. Pure tone audiometry showed a mixed hearing loss of 67.5dB. Nystagmus was not observed, and vertigo improved in a week. On exploratory tympanotomy, the fracture of the stapes footplate accompanying a dislocation of the incudo-stapedial joint and perilymphatic leakage from the oval window were found. The perilymph fistula was sealed with temporal fascia, and ossicular chain continuity was reconstructed by type N tympanoplasty. After the operation, the cochlear and vestibular symptoms improved.
著者
小川 裕 藤井 一省 玉井 好史
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.88, no.2, pp.237-249, 1995-02-01 (Released:2011-11-04)
参考文献数
19

We evaluated the anti-tumor effect of the herbal medicine, Sheng-Jin-Jie-Du-Yin, on a human maxillary cancer cell line transplanted into nude mice.This herb consists of 16 crude drugs developed in China. We found it to be effective in inhibiting the cancer transplanted into animals. The two crude drugs, solanum lyratum herb and oldenlandia herb, in Sheng-Jin-Jie-Du-Yin accounted for the anti-tumor effect.The anti-tumor effect of solanum lyratum herb was noted when it was combined with radiotherapy, while oldenlandia herb was effective in the inhibition of tumor growth when given alone or in combination with radiotherapy.We measured the NK activities in nude mouse spleen cells and concluded that the anti-tumor effect of oldenlandia herb is related to an immune mechanism.
著者
馬場 駿吉 高坂 知節 稲村 直樹 佐藤 三吉 鈴木 茂 遠藤 里見 石戸谷 雅子 小野寺 亮 山田 公彦 大久 俊和 荒井 英爾 鈴木 雅明 大山 健二 粟田口 敏一 戸川 清 岡本 美孝 松崎 全成 寺田 修久 喜多村 健 石田 孝 馬場 廣太郎 島田 均 森 朗子 池田 聖 金子 敏郎 今野 昭義 山越 隆行 石井 哲夫 窪田 市世 鍋島 みどり 田口 喜一郎 石山 哲也 中野 雄一 中村 英生 五十嵐 文雄 古川 仭 作本 真 山下 公一 久保田 修 宇佐神 篤 伊藤 博隆 鈴木 元彦 間宮 紳一郎 横田 明 加藤 薫 大屋 靖彦 河合 〓 岩田 重信 横山 尚樹 井畑 克朗 瀧本 勲 稲福 繁 坂倉 康夫 鵜飼 幸太郎 雨皿 亮 山田 弘之 坂倉 健二 平田 圭甫 伊藤 由紀子 村上 泰 竹中 洋 山下 敏夫 久保 伸夫 中井 義明 大橋 淑宏 阪本 浩一 村田 清高 平沢 昌子 原田 康夫 森 直樹 白根 誠 多田 渉 小林 優子 竹林 脩文 河野 嘉彦 夜陣 紘治 平田 思 宮脇 修二 津田 哲也 山下 隆司 二階堂 真史 柿 音高 永澤 容 増田 游 後藤 昭一 西岡 慶子 折田 洋造 東川 康彦 武 浩太郎 進 武幹 前山 忠嗣 百田 統洋 堤 昭一郎 茂木 五郎 川内 秀之 松下 太 吉村 弘之 高田 順子 石川 哮 定永 恭明 大山 勝 松崎 勉 坂本 邦彦 廣田 常治 内薗 明裕 鯵坂 孝二 中島 光好
出版者
The Society of Practical Otolaryngology
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.88, no.3, pp.389-405, 1995-03-01
被引用文献数
13 12

The efficacy and safety of Kampo preparation Sho-seiryu-to were studied in a joint double-blind trial in comparison with a placebo. The study was carried out on 220 patients with perennial nasal allergy at 61 hospitals. Granules in a dose of 3 g were administered 3 times daily for 2 weeks. Moderate to high improvement was recorded in 44.6% of the treated patients and in 18.1% of those receiving placebo. The difference is significant (p <0.001). Side effects were noted in 6.5% of the treated patients and in 6.4% of the controls (not a significant deference). The side effects were mild and had no influence on the daily life of the patients.
著者
坂田 英治 大都 京子 志村 弘道 酒井 繁
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.79, no.12, pp.1999-2013, 1986-12-01 (Released:2011-11-04)
参考文献数
15

In recent years some youngsters have been indulging in what is called thinner inhalation, posing a serious social problem.Organic solvents have also been widely used industrially as adhesives or degreasing and rinsing agents, generating a kind of occupational disease which has become a medical problem.Furthermore, some schoolchildren who refuse to go to school complaining of headache, head heaviness, blurred vision, diplopia, dizziness, or equilibrium disturbances, may actually have toluene toxicosis caused by the adhesive they use in constructing plastic models.The authors examined 35 such patients neurotologically and found some impairment in the cerebellar cortex, cerebellar nuclei, or efferent pathways. This report is presented to invite comments from other researchers.
著者
山下 敏夫 北尻 雅則 友田 幸一 熊沢 忠躬
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.75, no.12, pp.2567-2574, 1982-12-01 (Released:2011-11-04)
参考文献数
11

自然再生鼓膜を持つ側頭骨26耳の観察を行った. 従来, 耳鏡所見より自然再生鼓膜は皮膚層と粘膜層の2層のみで中間層はないとされていたが, そのほとんどの例において中間層の存在する事が確認され, 従来の考えの誤まりを指摘した.又, 移行部の観察より穿孔閉鎖機序には皮膚層が先行するとの印象を持った.一方保存的又は手術的閉鎖法によって再生された鼓膜の電顕的像を含めた組織学的観察により, 保存的閉鎖法により再生された鼓膜は, 正常鼓膜に近い構造を持つ事が判明された.
著者
浜本 誠 形浦 昭克
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.92, no.2, pp.115-117, 1999-02-01 (Released:2011-11-04)
参考文献数
6
被引用文献数
1
著者
若島 純一 原渕 保明 山口 治浩 形浦 昭克
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.90, no.6, pp.693-697, 1997-06-01 (Released:2011-11-04)
参考文献数
14

Ulcerative colitis is an idiopathic, non-specific inflammatory disorder of the colon, and its etiology remains unknown. We present a case of ulcerative colitis in which clinical symptoms were remarkably improved by palatine tonsillectomy. The patient was diagnosed with severe ulcerative colitis and treated with internal medicine. When pharyngitis and aphthous stomatitis developed, his bowel symptoms worsened. A tonsillar provocation test was performed, and the result was positive. Moreover, bowel symptoms worsened after the tonsillar provocation test and the patient developed a sore throat and fever. Therefore, we suspected tonsillar focal infection and carried out palatine tonsillectomy. In the early postoperative period, bloody diarrhea recovered despite the interruption of sulfasalazopiridine and lymphocyte afferesis. In addition, recurrent pharyngitis and aphtous stomatitis were resolved entirely.
著者
中出 捨次郎
出版者
The Society of Practical Otolaryngology
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.21, no.2, pp.347-370_1, 1927

1. 口蓋扁桃腺ニ於ケル格子状纖維ハ胎生第三ヶ月初期ニ於テ既ニ發生シ, 規則正シキ網羅状ヲナシテ實質中平等ニ存在シ, 實質組織ヲ多數ノ小部分ニ分チ, ソノ各部ニハ一個若クハ數個ノ細胞ヲ容ル.<br>該纖維網眼ハ更ニ之ヨリ分岐シテ樹枝状又ハ不規則ナル網状ヲナセル甚ダ纖細ナル多數ル細纖維ニヨリテ充タサレ, 此等細纖維ハ前述ノ細胞間ニモ入リ, 之等ヲ纒絡スルモノノ如シ.<br>2. 口蓋扁桃腺ノ格子状纖維ハ胎生第三ヶ月初期ニ於テ既ニ主副纖維ノ別明瞭ナリ. 即, 該時期ニ於テハ主纖維ハ多數細纖維ノ集リテ成レルコト恰モ絹絲ノ多數細纖維ヨリ成ルニ酷似シ, 其後次第ニ成育スルニ從ヒ該細纖維ノ一部ハ尚依然之ヲ認メ得ルモ一部ハ融合シテ太キ一本ノ纖維トナリ胎生第六ヶ月ニ至レバ此ノ融合セル纖維部ハ甚ダ強靱トナル.<br>3. 胎生時ニ於ケル格子状纖維ハ胎生初期ニ於テハ尚甚ダ纖細ナリト雖モ網羅状ニ黒染シ, 成人ニ於ケルモノト全ク同一ナリ.<br>4. 格子状纖維ハ膠基纖維ト明ニ區別ス可キモノニシテ胎生期ニ於ケル口蓋扁桃腺ニ於テハ前者ノ後者ニ變性移行スルヲ認メズ.<br>5. 口蓋扁桃腺ニ於ケル格子状纖維ハ胎生第三ヶ月末期以後ニ於テ濾胞ニ一致シテ圓形, 紡〓形若クハ不整形ニ全ク缺如スルカ, 或ハ著シク乏少ニシテ僅ニ斷片状ニ存在スルニ過ギズ. 而テ該格子状纖維缺如部 (即, 濾胞) ハ胎生初期 (第三・四ヶ月) ニ於テハ紡〓形若クハ不整形ヲ呈スルモ, 漸次發育スルト共ニ類圓形ヲ呈シ, 第六ヶ月ニ至レバ生後ニ於ケルモノト大差ナキニ至ル.<br>6. 胎生第三ヶ月ニ於テ扁桃腺上皮組織下ニ之ニ沿ヒテ稍太キ格子状纖維ノ走行スルヲ認ムルモ扁桃腺被嚢内ニハ全ク之ヲ認メズ. 其後扁桃腺ノ發育ト共ニ該纖維モ亦, 發育増殖スト雖モ, 被嚢内ニハ特ニ強靱ナル該纖維ヲ認ムル事ナシ. 即, 格子状纖維ハ被嚢ノ形成ニ關與スル事少シ.<br>7. 彈力纖維ハ胎生第三ヶ月ニ於テ既ニ扁桃腺上皮組織下ニ, 第四ヶ月ニ於テ皮嚢内ニ, 實質ヲ包ミテ走行スルヲ認メ, 其後次第ニ發育スルモ, 第六ヶ月ニ至レバ甚ダ著明ナル發育ヲ遂ゲ強靭ナル該纖維ハ屈曲蛇行シテ扁桃腺組織ヲ包ムニ至ル.<br>8. 扁桃腺實質内ニ於テハ彈力纖維ハ甚ダ纖細ナレ共, 胎生第三ヶ月ニ於テ血管壁ノ外, 上皮組織ニ接近セル極メテ小部分ニ略, 之ニ並行シテ線状ニ走行シ, 第四ヶ月ニ於テハ被嚢ニ近キ部ニ於テモ同樣, 該纖維ヲ認メ,上皮組織ニ近キ部ニ於ケルモノハ互ニ吻合ヲ作リテ網状ヲナシ, 稍之ニ遠ザカリテ扁桃腺深部ニ入レノバ未ダ吻合ヲ作ルニ至ラズシテ線状ヲナシテ存ス. 第六ヶ月ニ至レバ該纖維ハ實質中平等ニ網状ヲナシテ存在スルニ至リソノ走行ハ上皮組織並ニ被嚢ニ近キ部ニ於テハ略, 之ニ並行シテ走行シ, 互ニ吻合ヲ作リテ網状ヲ呈シ, 稍, 之ヲ遠ザカリテ扁桃腺深部ニ入レバカクノ如ク一定セズシテ不規則ニ網羅状ヲナス. 其後益々發育スト雖, 扁桃腺被嚢或ハ周圍組織ニ於ケルモノニ比シ一般ニ甚ダ纖細ナリ.<br>9. 彈力纖維ハ腺窩ニ近接セル扁桃腺實質部ニ於テハ, 腺窩ヲ色ミテ之ト略並行ニ輪状ニ走行セル太キ纖維ト, 上皮組織ト略, 垂直ニ放線状ニ走行セルモノト及ビ腺窩上皮組織ニ並行ニ縦走セルモノトル略三種ヨリ成リ, 互ニ吻合シテ網羅状ヲナシ, 籠状ニ腺窩ヲ包ム.<br>10. 口蓋扁桃腺ニ於テハ彈力纖維ハ濾胞ニ一致セル部ニ略圓形ヲナシテ全ク缺如スルカ, 或ハ著シク乏少ナリ.<br>11. 膠基纖維ハ胎生第三ヶ月ニ於テ扁桃腺被嚢部並ニ上皮組織下ニ之ニ沿ヒ纖細ナル纖維トシテ走行シ, 其後次第ニ發育スト雖, 扁桃腺被嚢部ニ於ケルモノ特ニ著明ニシテ, 胎生第六ヶ月ニ至レバ強靱ナル該纖維ハ屈曲蛇行シテ扁桃腺實質ヲ包ム. 上皮組織下ニ於ケルモノハ胎生第十ヶ月ニ至レバ再ビ甚ダ纖細トナル.<br>12. 膠基纖維ハ扁桃腺實質中ニ於テハ胎生第三ヶ月, 第四ヶ月ニ於テ極メテ纖細且, 淡染セルモノ線状或ハ粗鬆ナル網状ヲナシテ細胞間ニ少量存シ, 第六ヶ月以後ニ於テハヨク發育シテ濃染シ, 全實質中ニ分布ス. 然レドモ濾胞ニ於テハ之ヲ缺如スルカ, 或ハ甚ダ乏少ナリ.<br>13. 胎生期ニ於テハ扁桃腺被嚢ハ主トシテ膠基纖維並ニ彈力纖維ヨリ成リ, 格子状纖維ハ之ニ與ル事少シ. 然ルニ扁桃腺實質組織内ニ於テハ間質組織ハ主トシテ格子状纖維ヨリ成リ, 膠基纖維, 彈力纖維亦存在スト雖, 彼ニ比スレバ甚ダ纖細ニシテ間質組織トシテハ前者ニ比シ意義少シ.<br>14. 胎兒口蓋扁桃腺ニ於テハ扁桃腺實質部タルト被嚢部タルトヲ問ハズ一般ニ格子状纖維ハ胎生初期 (第三ヶ月) ニ於テ既ニヨク發育分布セルニ反シ, 彈力纖維, 膠基纖維ハ胎生初期ニ於テ既ニ發生スレ共, 其發育極メテ微々タルノ顯著ナル相違アリ. 而テ胎生中期 (第五, 六ヶ月) 以後ニ至レバヨク發育分布サルルニ至ル.<br>15. 口蓋扁桃腺實質部ニ於ケル各纖維ハ, 扁桃腺周圍組織ニ於ケルモノニ比スレバ甚ダ繊細ニシテ, 彈力纖維, 膠基纖維ニ於テ殊ニ顯著ナリ.<br>16. 扁桃腺被嚢ハ胎生第三ヶ月ニ於テ既ニ其
著者
国吉 京子 井上 幸 中島 誠 川野 通夫 澤田 正樹 一色 信彦
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.82, no.11, pp.1587-1592, 1989-11-01 (Released:2011-11-04)
参考文献数
20

In order to study the development of speech in infants with cleft palate, we investigated the development of consonant articulation in two cases (A, B) with cleft soft palate and in two cases (C, D) with cleft lip and palate before and after palatoplasty. We taperecorded their consonants in meaningful speech sounds and transcribed them.We made the following observations: (1) The frequency of consonants in meaningful speech sounds did not vary with the type of cleft or the timing of palatoplasty, and increased radically in the latter half of the second year and the first half of the third year. (2) Glottal stops occurred in the pre-palatoplasty periods but had almost disappeared three to ten months after palatoplasty in cases A, B, and C, whose velopharyngeal function was competent. (3) The speech sounds of these three cases were judged to be intelligible when the numbers of glottal stops decreased, the numbers of voiceless stops accounted for over 50% of all stops, and bilabial voiceless stops [p] appeared.
著者
本田 学
出版者
耳鼻咽喉科臨床学会
雑誌
耳鼻咽喉科臨床 (ISSN:00326313)
巻号頁・発行日
vol.78, no.5special, pp.789-801, 1985 (Released:2011-11-04)
参考文献数
34

The human tragus is bigger than that of other animals, and it overhangs the front of the entrance to the auditory canal. Thus, it is probable that the tragus is related to acoustic function of the external ear. Since no acoustic studies have been reported to date, the author examined the acoustic function of the tragus.The source of sond was a Function Generator (TECTRONICS FG 504), and the response curves were measured in a linear scale (the frequency range was from 0.1k to 10kHz). Sound pressure was measured by a very small condenser microphone (RION EU-22), which could be placed in the auditory canal. The data were averaged and analyzed by an Analyzing Recorder (YEW MODEL 3655).Included in this study were one subject with a tragus defects, ten subjects with normal ears, an external ear replica (KOKEN LM 7#1202), an auditory canal model (Plastic) and a tragus model (clay model).The results were as follows:1. The tragus increased the acoustic length of the auditory canal (by about 3mm), lowering the frequency of the canal resonance (about 200Hz).2. The tragus helped the acoustic function of the pinna, and it raised the acoustic response of 4k to 8kHz up to about 5 to 7dB.3. The tragus forms part of the horn shape of the external ear, and it causes the acoustic response of the horn under 8kHz to be a flat response.Therefore the acoustic function of the tragus in the human is of obvious importance to the function of the external ear.