jibi to rinsho
Online ISSN : 2185-1034
Print ISSN : 0447-7227
ISSN-L : 0447-7227
Volume 65, Issue 1
Displaying 1-6 of 6 articles from this issue
Original Article
  • Takafumi YAMANO, Souichirou NISHI, Mariko SUGINO, Ayumi UNOKI, Fumitak ...
    Article type: Original Article
    2019 Volume 65 Issue 1 Pages 1-4
    Published: January 20, 2019
    Released on J-STAGE: January 20, 2020
    JOURNAL FREE ACCESS

    The earable RCC is a device that measures the change in the shape of the ear canal based on the change in the relative distance between the sensor and the eardrum using an optical distance sensor. We measured the ear canal motion accompanying chewing using this device. There were no marked differences in the age and gender, but individual differences were large. The ease of biting on the left and right sides was also reflected, which was useful for measuring the ear canal motion accompanying chewing.

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  • Hirokazu KAWANO
    Article type: Original Article
    2019 Volume 65 Issue 1 Pages 5-10
    Published: January 20, 2019
    Released on J-STAGE: January 20, 2020
    JOURNAL FREE ACCESS

    Fifty-one cases of middle ear cholesteatoma were operated on during a five-year period. Among them, pathological osseous lesions (POLs) were present in the attic or mastoid antrum in seven cases. All seven cases involved attic cholesteatoma, and six patients were female. The incidence of POL was significantly increased in cases of cholesteatoma with granulation involving attic retraction. Fixation of the malleus and the incus was found in five cases, and bony blocking of the aditus ad antrum was seen in three cases. The POLs were limited to the margins of the cholesteatoma, suggesting that their formation might be intimately associated with the cholesteatoma matrix. The histopathological findings of the POLs included irregular lamellar bone with a medullary cavity. POLs in patients with cholesteatoma likely form via a reaction against chronic inflammation. However, this condition is pathogenically different from tympanosclerosis.

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  • Shogo MASUDA, Takafumi NAKANO, Ryunosuke KOGO, Kazuki HASHIMOTO, Ryuji ...
    Article type: Original Article
    2019 Volume 65 Issue 1 Pages 11-17
    Published: January 20, 2019
    Released on J-STAGE: January 20, 2020
    JOURNAL FREE ACCESS

    We examined the risk of treatment using the POSSUM score for elderly (> 80 years old) head and neck squamous cell carcinoma patients, a population that has been growing in recent years. Twenty-one patients who had undergone surgery at the Department of Otolaryngology, Kyushu University Hospital, from September 2011 to August 2016 were analyzed. We compared the 8 patients in the postoperative complication group to the 13 patients in the no postoperative complication group. The predicted risk of complications calculated by the POSSUM score was 65% in the postoperative complication group and 48% in the no postoperative complication group. There was no significant difference between the groups, but the risk in the postoperative complication group tended to be higher than that in the no postoperative complication group. The predicted risk of complications was high in patients with serious complications, including some who died. In conclusion, it is important to review the general status and consider the operative stress of patients before surgery and to make a plan to prevent complications.

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Case Report
  • Shiho KATO, Akihiro HIMENO, Toshifumi SAKATA
    Article type: case-report
    2019 Volume 65 Issue 1 Pages 18-24
    Published: January 20, 2019
    Released on J-STAGE: January 20, 2020
    JOURNAL FREE ACCESS

    Noise-induced hearing loss (NIHL) from shooting is a common symptom among Self Defense Force (SDF) officers. Otolaryngologists working in SDF hospitals frequently see patients with this condition. Most of those patients have hearing loss of high-frequency sounds. In contrast, some patients suffering from NIHL have low-frequency hearing loss. Their hearing ability can fluctuate, and in some cases, they suffer from vertigo and light-headedness. Some patients show a positive response to the glycerol test, suggesting that they suffer from endolymphatic hydrops. The subjects of the present study were three male SDF officers who had developed low-frequency hearing loss after exposure to intense sound impulses from shooting. Two of these patients had a positive response to the glycerol test. The symptoms of the third patient were improved by the administration of isosorbide. There has been little research on patients with endolymphatic hydrops syndrome after heavy exposure to impulse noise, and the mechanism is not fully understood. In addition, efforts by the SDF to prevent hearing loss caused by shooting have been inadequate. Preventative measures are important, and it is recommended that members of the SDF wear earplugs to prevent NIHL.

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  • Shiho KATO, Toshifumi SAKATA
    Article type: case-report
    2019 Volume 65 Issue 1 Pages 25-30
    Published: January 20, 2019
    Released on J-STAGE: January 20, 2020
    JOURNAL FREE ACCESS

    The subject of this study was a 50-year-old woman who had complained of autophonia, hearing her own breathing, and a feeling of stuffiness in her ear since undergoing adenotomy while in elementary school. Her symptoms had worsened over the course of a year, so she was referred to us, by her local doctor. An examination of the sounds transmitted to her ear canal, confirmed that the sound on the affected side was distorted and intensified. Similar results were obtained with the patient in the supine position. The pharyngeal orifice of the Eustachian tube on the affected side was enlarged, and the posterior lip was significantly smaller than that on the healthy side. Computed tomography revealed air throughout the Eustachian tube in both coronal and axial sections. There have been few studies concerning temporal bone malformation of the Eustachian tube expansion, with available reports mainly limited to external ear abnormalities and Klippel-Feil syndrome. The case examined in this study is therefore considered to be extremely rare.

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