{"title":"The vascularization of the human cochlea: its historical background.","authors":"Albert Mudry, Rinze A Tange","doi":"10.1080/00016480902924469","DOIUrl":"https://doi.org/10.1080/00016480902924469","url":null,"abstract":"The history of vascularization of the human cochlea began with the first anatomical description of the cochlea in the 16th century. Three different periods are recognizable in the development of knowledge concerning this subject: the macroscopic period, with the description of the structure of the cochlea from the 16th to the 19th century; the microscopic period, with the description of the part of the organ of Corti in the 19th century; and the injection period, with the description of the fine vascularization of the cochlea in the 20th century. Various techniques were used during these three periods, which will be presented here, using only original references. This historical study reveals the ingenuity of the researchers in using different aspects of technological progress to enhance their performance in research.","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00016480902924469","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28138884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preface. To commemorate the retirement of Professor Kimitaka Kaga from the Graduate School of Medicine, University of Tokyo.","authors":"Tetsuo Ishii","doi":"10.1080/03655230701760709","DOIUrl":"https://doi.org/10.1080/03655230701760709","url":null,"abstract":"It is with great pleasure that we present this supplement of ActaOtolaryngologica to commemorate the retirement of Professor Kimitaka Kaga from the Department of Otolaryngology and Head and Neck Surgery of the Graduate School of Medicine, the University of Tokyo, Tokyo, Japan. Professor Kaga was born in 1944 and grew up in Hokkaido, the northern island of Japan. His birth place was Bibai City, which had a well-known coal mine. He graduated from the School of Medicine, University of Tokyo in 1971. After completing two years of training in otolaryngology at the university hospital of Tokyo, he joined the Department of Otorhinolaryngology of Teikyo University in 1973 (Chairman: Professor Jun-ichi Suzuki). He began his training as an otologic surgeon and clinical auditory neurophysiologist. In Teikyo University, he met Professor Tokuro Suzuki, and Professor Robert Galambos who introduced the concept of auditory brainstem responses (ABR). ABR became his very important clinical tool for investigating disorders of the inner ear, brainstem, and auditory cerebral cortices. Professor Yoshikazu Shinoda trained him in auditory and brain science research. He made various new discoveries concerning central auditory disorders as determined on the basis of ABR and neuropathology. Meanwhile, Professor Tetsuo Ishii guided him in the field of temporal bone histopathology. He studied patients with cortical deafness and aphasia together with speech pathologists. Professor Jun-ichi Suzuki trained him in otologic surgery. Since his student days, he was interested in medical education. In 1983, from July to December, he had a wonderful opportunity to study Medical Education at the Center for Research in Medical Education and Health Care of the Jefferson Medical College, under the supervision of Professor Joseph Gonnella, in Philadelphia, USA. From 1984 to 1985, he joined Professor Jeniffer Buchwald’s laboratory of the Brain Research Institute of UCLA in Los Angeles, USA to study in the origins of P300, which is one of the event related potentials. In 1992, Dr. Kaga was appointed to Professor and Chairman of the Department of Otolaryngology, Graduate School of Medicine, University of Tokyo. During his professorship, he introduced new ear surgical techniques, such as total middle ear reconstruction and reconstructive surgery for microtia and atresia developed together with plastic surgeons, and the use of cochlear implants and auditory brainstem implants. During his sixteen years, he accepted and helped to educate 132 freshman doctors and 20 foreign graduate students. In 200","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701760709","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neuro-otological findings in patients with very small (border zone) cerebellar infarcts.","authors":"Shigeru Kikuchi, Tatsuya Yamasoba","doi":"10.1080/03655230701596517","DOIUrl":"https://doi.org/10.1080/03655230701596517","url":null,"abstract":"<p><strong>Conclusions: </strong>The symptoms and signs in patients with very small (border zone) cerebellar infarcts (VSCIs) may mimic those in benign peripheral vestibular disorders, except that smooth pursuit eye movement is disturbed in patients with VSCI.</p><p><strong>Objectives: </strong>VSCIs are located at the boundary territories between well-defined cerebellar arteries and are frequently manifested by dizziness or vertigo. The aim of the current study was to clarify the clinical characteristics of vestibular symptoms and signs associated with VSCI.</p><p><strong>Patients and methods: </strong>We studied the neuro-otological findings in five vertiginous patients, who were diagnosed as having VSCI based on magnetic resonance imaging (MRI).</p><p><strong>Results: </strong>Four patients complained of only dizziness or only vertigo, and one complained of dizziness with dysarthria. Horizontal spontaneous nystagmus and saccadic eye movement on eye tracking test were observed in all patients, but there were no abnormalities on examinations for saccade, optokinetic pattern, or visual suppression. Canal paresis was present in three patients.</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701596517","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Eye movement disorders in myotonic dystrophy type 1.","authors":"Ryuichi Osanai, Masanobu Kinoshita, Kazuhiko Hirose","doi":"10.1080/03655230701597192","DOIUrl":"https://doi.org/10.1080/03655230701597192","url":null,"abstract":"<p><strong>Conclusions: </strong>No definite sign was found of central oculomotor system disorders being independent of saccadic slowing because (1) diminished maximum slow phase velocity of the optokinetic nystagmus (OKNspv) was closely related to saccadic slowing (p<0.01, r=0.59), (2) maximum frequency of optokinetic nystagmus (OKNfq) was normal, (3) visual suppression (VS) change was mild, and (4) the diminished maximum slow phase velocity of the caloric nystagmus (CNspv) seen in some patients is explained by both peripheral and central vestibular involvement. These findings support the extraocular muscle hypothesis.</p><p><strong>Objective: </strong>To assess whether eye movement disorders seen in patients with myotonic dystrophy type 1 (DM1) are caused by central oculomotor system involvement or extraocular muscle damage.</p><p><strong>Patients and methods: </strong>Oculomotor functions and their correlation with (CTG)n length were studied in 29 DM1 patients and 12 age-matched controls.</p><p><strong>Results: </strong>Values for saccadic velocity (p<0.005), maximum OKNspv (p<0.005), and maximum CNspv (p<0.01) in the patient group were markedly lower than in the control group. VS of caloric nystagmus in the patient group was slightly lower than that in the controls. No significant difference was found between the two groups in the maximum OKNfq. Patients with greater (CTG)n lengths had lower saccadic velocities (p<0.01, r=0.71).</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701597192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Isolated hearing loss associated with T7511C mutation in mitochondrial DNA.","authors":"Tatsuya Yamasoba, Katsunori Tsukuda, Mitsuya Suzuki","doi":"10.1080/03655230701595345","DOIUrl":"https://doi.org/10.1080/03655230701595345","url":null,"abstract":"<p><strong>Conclusion: </strong>The T7511C mutation is considered responsible for maternally inherited, isolated sensorineural hearing loss of cochlear origin. This mutation should be screened for in cases of nonsyndromic, familial sensorineural hearing loss compatible with maternal transmission.</p><p><strong>Objectives: </strong>To clarify the audiovestibular phenotype characteristics associated with a T7511C mutation in mitochondrial DNA and determine whether it causes isolated sensorineural hearing loss unaccompanied by other neuromuscular symptoms or signs.</p><p><strong>Subjects and methods: </strong>A proband and affected members of a Japanese family harboring a T7511C mutation in the mitochondrial tRNA(Ser(UCN)) gene were enrolled. Mutation analysis was done on genomic DNA extracted from blood samples. Auditory pathways involved were investigated in examinations that included pure-tone audiograms, acoustic reflexes, speech discrimination testing, distortion-product otoacoustic emissions, and auditory brainstem responses. The presence of other signs and symptoms, including vestibular ones, was investigated.</p><p><strong>Results: </strong>We identified a homoplasmic T7511C mutation in the mitochondrial tRNA(Ser(UCN)) gene in this family. No other pathogenic mutations associated with hearing loss or common mitochondrial diseases were found. Hearing loss of cochlear origin mainly developed at mid to high frequencies. Vestibular systems were well preserved. No symptoms or signs characteristic of mitochondrial diseases were present in any family members.</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701595345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Immunohistochemical study of m1-m5 muscarinic receptors and nNOS in human inferior turbinate mucosa.","authors":"Muneo Nakaya, Kenji Kondo, Kimitaka Kaga","doi":"10.1080/03655230701599321","DOIUrl":"https://doi.org/10.1080/03655230701599321","url":null,"abstract":"<p><strong>Conclusion: </strong>This study suggested that nitric oxide (NO) takes part in the parasympathetic nerve control functions mainly through m3 receptors and subsequently through m1 receptors.</p><p><strong>Objectives: </strong>The regulation of glandular secretions and vasomotor tone in human nasal mucosa implicates muscarinic receptors. There are five recognized classes (m1-m5) of muscarinic receptor subtypes. NO is a free radical gas that has been found to be produced in neuronal cells by the action of enzyme neural nitric oxide synthase (nNOS). The aim of this study was to identify the colocalization of muscarinic receptor subtypes (m1-m5) and nNOS in the human inferior turbinate mucosa.</p><p><strong>Materials and methods: </strong>Human inferior turbinate mucosa was stained by using the antibody of muscarine receptor subtypes and nNOS in an immunohistochemical double-staining method.</p><p><strong>Results: </strong>The colocalization of m3 receptors and nNOS-immunoreactive nerve fibers was most extensively distributed on glands, vessels, and epithelium in all muscarinic receptor subtypes. These findings lead us to propose that NO also acts as a neurotransmitter in glands, vessels, and epithelium of the human nasal mucosa and can be assigned to parasympathetic nerve structures through m3 receptors mainly and m1 receptors subsequently.</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701599321","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shu Kikuta, Munetaka Ushio, Yutaka Fujimaki, Kimitaka Kaga
{"title":"Factors associated with the presence of drug-resistant bacteria and recurrent acute otitis media in children--a study in a private clinic.","authors":"Shu Kikuta, Munetaka Ushio, Yutaka Fujimaki, Kimitaka Kaga","doi":"10.1080/03655230701595220","DOIUrl":"https://doi.org/10.1080/03655230701595220","url":null,"abstract":"<p><strong>Conclusions: </strong>The proportion of drug-resistant bacteria was lower than previous reports. In children with acute otitis media (AOM), lower age, presence of multiple bacteria, and otitis media with effusion (OME) represented significant factors for recurrent AOM and the presence of drug-resistant bacteria.</p><p><strong>Objective: </strong>Recently, the proportion of drug-resistant bacteria has been increasing in children with AOM. We studied the proportion of drug-resistant bacteria and background factors for detection of drug-resistant bacteria and recurrent AOM in a private clinic.</p><p><strong>Subjects and methods: </strong>Subjects comprised 170 patients <12 years old with AOM. Middle ear fluid was collected and pathogenic bacteria were identified. The following factors were considered: age, sex, use of antibiotics in the past 1 month, past history of recurrent AOM, presence of OME, and multiple bacteria of the three main strains (Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis).</p><p><strong>Results: </strong>A total of 169 strains were detected in 77% of children with AOM. Drug-resistant bacteria comprised 44 of the 169 strains (26%). Lower age (p=0.001) and presence of multiple bacteria (p<0.001) represented significant factors for the presence of drug-resistant bacteria. OME was a significant factor for recurrent AOM (p<0.001).</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701595220","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ken Ito, Rie Naito, Toshihisa Murofushi, Ryoko Iguchi
{"title":"Questionnaire and interview in screening for hearing impairment in adults.","authors":"Ken Ito, Rie Naito, Toshihisa Murofushi, Ryoko Iguchi","doi":"10.1080/03655230701595279","DOIUrl":"https://doi.org/10.1080/03655230701595279","url":null,"abstract":"<p><strong>Conclusion: </strong>Questionnaire and brief interview played an important complementary role in the mass hearing screening.</p><p><strong>Objectives: </strong>To evaluate the efficacy of mass screening for hearing loss.</p><p><strong>Subjects and methods: </strong>Review of a 9-year prospective screening (n=31 902) in a university. The screening comprised pure tone hearing screening at two frequencies (1000 Hz and 4000 Hz) and a questionnaire. Brief interview was introduced during the later 4-year period. The final diagnosis was made in the university hospital.</p><p><strong>Results: </strong>In hearing screening tests, approximate sensitivity was 89% for 1000 Hz and 91% for 4000 Hz. Approximate specificity was 89% and 88% for 1000 Hz and 4000 Hz, respectively. Brief interview with the subjects on the spot improved the accuracy, especially in specificity. Low tone sensorineural hearing loss, exudative otitis media and chronic otitis media could be overlooked without questionnaires.</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701595279","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27321966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Parathyroid adenoma causing spontaneous cervical hematoma: a case report.","authors":"Takaharu Nito, Chie Miyajima, Miwako Kimura, Masashi Sugasawa","doi":"10.1080/03655230701600491","DOIUrl":"https://doi.org/10.1080/03655230701600491","url":null,"abstract":"<p><p>A case of parathyroid adenoma causing a spontaneous cervical hematoma is reported. A 55-year-old woman presented with painful swallowing, dysphagia, and dyspnea. Primary hyperparathyroidism and a parathyroid tumor on the left side of the neck had been found 2 years earlier. Fiberoptic laryngoscopy and computed tomography (CT) showed a narrowing of the airway as a result of a retropharyngeal hematoma, and tracheostomy was carried out. Parathyroidectomy was performed 5 months after the absorption of the hematoma, with no complications. A pathological diagnosis revealed a parathyroid adenoma with hemosiderin deposition and fibrosis. Serum calcium and intact parathormone levels normalized postoperatively. Although a spontaneous cervical hematoma resulting from parathyroid tumors rarely occurs, it may lead to an airway compromise. Physicians should be aware of this if such tumors are managed conservatively without surgery.</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701600491","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27322875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Naoya Egami, Aki Inoue, Ryuichi Osanai, Nobuo Kitahara, Kimitaka Kaga
{"title":"Vocal cord abductor paralysis in multiple system atrophy: a case report.","authors":"Naoya Egami, Aki Inoue, Ryuichi Osanai, Nobuo Kitahara, Kimitaka Kaga","doi":"10.1080/03655230701600145","DOIUrl":"https://doi.org/10.1080/03655230701600145","url":null,"abstract":"<p><p>Multiple system atrophy (MSA) is a progressive neurodegenerative disease that is characterized by varying degrees of parkinsonism and cerebellar, corticospinal, and autonomic dysfunction. Vocal cord abductor paralysis (VCAP) is considered a sign of a poor prognosis in MSA, because it is a life-threatening complication that may cause nocturnal sudden death. This case report presents a patient who was treated for Parkinson's disease, and complained of dizziness and sleep apnea. We examined VCAP using fiberoptic laryngoscopy as the possible cause of sleep apnea. VCAP usually occurs in the advanced stages of MSA and is accompanied by a worsening of other symptoms. Optokinetic nystagmus was severely impaired and the caloric test response was bilaterally absent. Objective findings such as VCAP and abnormal neuro-otological results led to the diagnosis of MSA.</p>","PeriodicalId":7027,"journal":{"name":"Acta oto-laryngologica. Supplementum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03655230701600145","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27322876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}