Nippon Jibiinkoka Gakkai Kaiho
Online ISSN : 1883-0854
Print ISSN : 0030-6622
ISSN-L : 0030-6622
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Volume 112, Issue 8
Displaying 1-5 of 5 articles from this issue
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Review article
Original article
  • Examination of Deglutition during Sleep Measuring Esophageal Pressure in Sleep Apnea Syndrome Patients
    Masatsugu Ohashi, Shintaro Chiba, Fumikazu Ota, Hiroshi Moriyama
    2009 Volume 112 Issue 8 Pages 609-614
    Published: 2009
    Released on J-STAGE: November 30, 2010
    DOIhttps://doi.org/10.3950/jibiinkoka.112.609
    JOURNAL FREE ACCESS
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    Why deglutition occurs during sleep remains unclear and controversial, but subclinical aspiration during sleep is surmised to contribute to much aspiration pneumonia, requiring that deglutition during sleep be evaluated. We studied the relationship between deglutition and sleep using deglutition waves based on nocturnal polysomnography data recorded while measuring esophageal pressure in patients suspected of having sleep-breathing disturbance. Most deglutition was found in stage 1 and then in stage 2 and REM sleep. Little deglutition was seen in stage 3 and 4, however. A relationship was thus found in sleep phase and deglutition, but no clear influence on deglutition during sleep was found for sleep apnea syndrome or age.
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  • Caloric Test in Low-tone Sensorineural Hearing Loss
    Mitsuhiro Kimura, Ryouji Hamamura, Tsuyoshi Umehara, Noriaki Aoi, Chia ...
    2009 Volume 112 Issue 8 Pages 615-622
    Published: 2009
    Released on J-STAGE: November 30, 2010
    DOIhttps://doi.org/10.3950/jibiinkoka.112.615
    JOURNAL FREE ACCESS
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    Acute low-tone sensorineural hearing loss (ALHL) is generally has a relatively good prognosis. We have often found in long-term following-up, however, that ALHL relapses, recurs or develops into Meniere's disease. Diagnostic criteria of the Acute Altitude Deafness Research Group of the Ministry of Health, Labor, and Welfare of Japan, define ALHL as low-tone-disorder sensorineural hearing loss without vertigo in which cochlear symptoms -ear fullness, tinnitus, and deafness- develop suddenly. Over the last five years, we have treated 31 cases of ALHL, in about half of which neurotological examination showed potential peripheral vestibular dysfunction on testing positional nystagmus (a) with closed eyes and (b) in a dark room with open eyes, and by finding laterality in the peripheral labyrinth system on caloric test. These cases show high canal paresis -a maximum slow- phase eye velocity of caloric nystagmus exceeding 60%. These results, taken together, suggest that derangement extends to the peripheral labyrinth system in patients with ALHL.
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  • Long-term Histological Outcome for the Larynx after Gore-Tex® Medialization Thyroplasty
    Hisanori Sasai, Yusuke Watanabe, Hiroshi Miyahara
    2009 Volume 112 Issue 8 Pages 623-627
    Published: 2009
    Released on J-STAGE: November 30, 2010
    DOIhttps://doi.org/10.3950/jibiinkoka.112.623
    JOURNAL FREE ACCESS
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    Objectives: We studied the long-term histological response of the human larynx to Gore-Tex® implant and evaluated whether its biocompatibility.
    Study design: Retrospective histological study.
    Methods: We conducted medialization laryngoplasty with expanded polytetrafluoroethylene (ePTEE or Gore-Tex®) in a patient with vocal-fold paralysis. A strip of Gore-Tex® was folded several times and inserted into the pocket preserving the inner perichondrium through a thyroid cartilage window. The patient died 12 months later and we histologically analyzed the larynx.
    Results: No evidence was seen of foreign body granuloma, migration, extrusion, or infection. A modest inflammatory response with a fibrous capsule was present around implants. We confirmed the infiltration of abundant collagen and numerous fibroblasts into the microporous implant structure.
    Conclusion: Histological examination results suggest that Gore-Tex® implants are safe and biocompatible with the human larynx. A slight inflammatory response and infiltration of fibrous tissue into the implant itself demonstrated that Gore-Tex® implants are immunologically well tolerated.
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Educational lecture
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