日本耳鼻咽喉科学会会報
Online ISSN : 1883-0854
Print ISSN : 0030-6622
ISSN-L : 0030-6622
88 巻, 6 号
選択された号の論文の7件中1~7を表示しています
  • 飯沼 壽孝, 大澤 博之, 広田 佳治, 清水 弥生
    1985 年 88 巻 6 号 p. 719-727
    発行日: 1985/06/20
    公開日: 2008/03/19
    ジャーナル フリー
    Twenty six sphenoidal mucoceles are classified into two types according to the location and extent of the mucoceles. Two types are Ala parva type (mucoceles extending to the Ala parva) and common type (other than Ala parva type). Ala parva type comrises 8 cases and common type 18 cases. Ala parva type showed a more limited area of distribution at the superior posterior aspect of the sinuses and were provided with more frequent destruction of the bony optic canals. The average age at onset was 42.2 years old, male preponderance (81%) and left preponderance (69%) were seen. Postoperative cases were 77% with the average years after the initial sinus surgery (Caldwell-Luc surgery) of 19.8 years. Visual disturbance was seen in 58% and more than half showed an advanced degree (blind, sense of light only, or discrimination of finger movement only). Average duration from the onset of visual disturbance to surgery was 2.0 months. Improvement in visual disturbance was seen in the half of the cases, and the prognosis was poor when the disturbance was of advanced degree and the duration of the disturbance exceeded 1 to 2 months. Destruction of the bony optic canal was seen in 73% and medial portion (37%) and superior portion (32%) were commonly affected. Among cases with optic canal destruction, 79% were complicated with visual disturbance. Postoperative cases differ from non-operative cases in no aspects. A bibliographical study for the pneumatization of the lesser wing was also included in discussion.
  • 湯本 英二, 岡本 和憲, 河村 裕二, 丘村 煕
    1985 年 88 巻 6 号 p. 728-733
    発行日: 1985/06/20
    公開日: 2008/03/19
    ジャーナル フリー
    The authors applied CO2 laser to treating fifteen patients with laryngeal cancer. They were classified into three groups.
    Group I . Five patients were treated with laser alone. Four of them were T1a cases and another was T1b. All of them are alive with no evidence of recurrence.
    Group II . Six patients were irradiated after removal of major lesion by laser surgery. Radiation of 40 Gy was given to four Tia cases. One patient died of distant metastasis to the lung. Another underwent unilateral radical neck dissection because of metastasis to the cervical lymph nodes. The other two of this group were given 60 Gy irradiation uneventfully.
    Group III. Laser surgery was utilized to four patients after radiation therapy in whom more radical surgery was not attempted due to poor general condition. One died of local recurrence and another is alive with recurrence. The other two are alive with no evidence of recurrence.
    Phonatory function after laser surgery was examined in nine cases with glottic cancer. Aerodynamic studies revealed nearly normal air flow rate and AC/DC ratio during phonation. Acoustic analysis showed slightly more marked pitch perturbations in these cases than in the T1a cases treated only with irradiation. Yet they retained sufficient phonatory function for their social activities.
  • in vivoにおける音速測定組織構成成分との関係
    石毛 俊行
    1985 年 88 巻 6 号 p. 734-746
    発行日: 1985/06/20
    公開日: 2008/12/15
    ジャーナル フリー
    A simple and accurate method for measuring the velocity of ultrasound in parotid tumors in vivo was presented in this paper. The pulse transmission technique (the sing-around method) was used in this method. After the velocity of ultrasound in parotid tumors in vivo was measured, it was corrected for the thickness of skin and subcutaneous tissue. And not only the velocity but the attenuation of ultrasound was measured in tumor specimens removed surgically. The tumor specimens were further analyzed to evaluate the content of collagen and water.The results were summarized as follows:
    1) The velocity of ultrasound in parotid tumors in vivo was found to vary from 1535 to 1589m/sec, the mean value being 1557m/sec.
    2) The velocity of ultrasound in parotid tumors in vivo and the corrected velocity were correlated with and approximated to the velocity of ultrasound in tumor specimens.
    3) The velocity and the attenuation of ultrasound in tumor specimens were correlated with the collagen content.
    4) A good negative correlation was observed between the velocity in tumor specimens and the water content.
    5) There was a close relationship between ultrasonic properties and the histopathology in pleomorphic adenomas.
  • 小出 冨士夫, 吉江 信夫, 阿瀬 雄治
    1985 年 88 巻 6 号 p. 747-759
    発行日: 1985/06/20
    公開日: 2008/03/19
    ジャーナル フリー
    This study was designed to establish an accurate and practical means for obtaining objective frequency-specific threshold of auditory brainstem response (ABR).
    The derived ABR presumably contributed from the cochlea tuned to octave frequency band was recorded in 16 young subjects with normal hearing and 23 patients with various types of cochlear hearing loss. A frequency-selective method was applied to yield the derived ABR, using high-pass filtered noises with five different cut-off frequencies of 0.5kHz, 1kHz, 2kHz, 4kHz and 8kHz, and with a definite cut-off slope 96dB/octave. Measurement of the derived ABR threshold could result in frequency-specific information initiated from the cochlea.
    The average threshold of the derived ABR for each of the octave-frequency bands was determined as representing a reference level for objective audiogram estimation with the derived ABR in the 16 young subjects with normal hearing. The derived ABR audiograms based on the reference level had good correlations to the pure-tone audiograms in cochlear hearing loss. This derived ABR technique was found promissing for the objective reconstruction of the audiogram with the derived ABR.
  • 野中 聡, 太田 善博
    1985 年 88 巻 6 号 p. 760-770
    発行日: 1985/06/20
    公開日: 2008/03/19
    ジャーナル フリー
    In this study, we tried to analyse the neuronal mechanisms of sneeze. The subglottic pressure was recorded by a pressure transducer introduced into the subglottis through the mouth. EMGs were recorded by means of bipolar electrodes made from thin (50μm) stainless steel wires implanted into the diaphragm (DIA), rectus abdominis muscle (RA), threoarytenoid muscle (TA), and posterior cricoarytenoid muscle (PCA). Bulbar respiratory neurons located ventral to the nucleus ambiguus were recorded extracellulary by means of microelectrodes filled with Wood's alloy (n=60, inspiratory neuron: 38, expiratory neuron: 22).
    During spontaneous respiration, the subglottic pressure exhibited rhythmical increase and decrease. The increase (5cm H2O) and the decrease (3.5cm H2O) in the subglottic pressure reflected expiratory phase and inspiratory phase, respectively. The DIA muscle and the PCA muscle exhibited bursting discharges in phase with the inspiratory phase. The RA muscle and TA muscle were silent. The inspiratory and the expiratory neurons discharged at the corresponding respiratory phases with firing frequencies between 17 to 135 pulses/s, and between 13 to 83 pulses/s, respectively.
    Mechanical stimulation (vibration, frequency; 20Hz, amplitude; 0.5mm) to the nasal mucosa elicited a series of sneezes characterized by an abrupt increase in the subglottic pressure (pressure height 75-135cm H20, duration 130-175ms) followed by forceful, active expiration. After the sneeze, the amplitude and the period of subglottic pressure decreased and prolonged, respectively. Normal respiratory rhythm with regular changes in the subglottic pressure occurred 10 to 20s after the sneeze. About 30ms before the onset of the sneeze, the DIA activity was terminated and the RA muscle was reciprocally activated. About 30ms before the peak subglottic pressure, the TA activity was terminated and the PCA muscle was reciprocally activated. The inspiratory neuron started to discharge vigorously about 0.6s before the onset of sneeze, with the increase in the period of bursting discharge and the firing frequency. The expiratory neuron exhibited vigorously discharge during the period of the sneeze. After the sneeze, both the inspiratory and the expiratory neurons decreased their firing frequencies of the bursting discharges, and their discharge properties recovered with the same time course as that of subglottic pressure.
    All these results suggest an existence of a sneeze pattern generator, and a part of it is shared with respiratory neuronal mechanism.
  • 中村 美弥子, 渡辺 勲
    1985 年 88 巻 6 号 p. 771-775
    発行日: 1985/06/20
    公開日: 2008/03/19
    ジャーナル フリー
    Normal variants in the radiological diagnosis of the zygomatic bone and its close proximity were investigated. Normal variants are classified into two major groups, i. e., superimposed suture lines simulating fracture lines and radiolucencies simulating bone destructions.
    Radiolucencies are classified into two subgroups, i. e., radiolucencies due to the zygomatic bone itself and radiolucencies due to superimposed ones from the such posterior structures as Ala magna of the sphenoid bone and Pars squamosa of the temporal bone.
    By Caldwell's view, superimposed suture lines were seen in 4.0%, radiolucencies of the zygoma itself in 8.7%, and superimposed radiolucencies in 0.8%.
    By Waters'view, radiolucencies of the zygoma itself in 4.0% and superimposed radiolucencies in 2.1%.
    Radiographic anatomy of superimposed suture lines were investigated and such suture lines as fronto-zygomatic spheno-zygomatic, spheno-frontal, and spheno-squamosal were found to be the maior suture lines to produce superimposition.
    Differential diagnosis of the bone destractions by the zygomatic bone was also discussed with biblio-graphical references.
  • 病理組織像と予後
    野口 高昭, 関谷 透, 兼定 啓子, 松尾 隆晶, 今手 祐二, 山下 裕司
    1985 年 88 巻 6 号 p. 776-783
    発行日: 1985/06/20
    公開日: 2008/03/19
    ジャーナル フリー
    Twelve cases of adenoid cystic carcinoma of the head and neck region at Yamaguchi University Hospital were reported from the clinicopathologic aspects. The cases were classified into 3 groups with different grade of malignancy from the standpoints of histopathological views.
    1) In addition to histological findings, perineural invasion, lymphatic invasion and venous invasion should be considered as other important factors. These findings were useful for the judgement of prognosis and the selection of treatment.
    2) Findings of perineural invasion and local recurrence were correlated to each other.
    3) Patients with findings of lymphatic invasion and venous invasion had the tendency that cervical lymph nodes metastasis and distant metastasis were generated.
    4) When the removal of the primary tumors was performed, safety margin over 2cm should be appended.
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