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Volume 99, Issue 12
Displaying 1-8 of 8 articles from this issue
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QUANTITATIVE ASSESSMENT OF RECONSTRUCTED TISSUE MOVEMENTHIROYUKI ENOMOTO, MAMORU TSUKUDA, IZUMI MOCHIMATSU, SATOSHI KAWAI, YOK ...1996 Volume 99 Issue 12 Pages 1729-1737,1811
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSWe examined the postoperative swallowing function of 12 tongue and oral floor cancer patients reconstructed with a recto-abdominal myocutaneous free flap after glossectomy. On the basis of the resection site, the present cases were classified into either anterior type or lateral type. Subjective evaluation of postoperative swallowing function was obtained from self-reports from patients. The movement of the reconstructed tissue was evaluated videofluorographically during swallowing, by tracking the movement of two small pellets temporarily attached to the anterior and central portions of the reconstructed tongue. The trajectory of the two pellets and the selected point of the hyoid bone were recorded together with the distance between the plate and the tongue dorsum, and between the posterior pharyngeal wall and the tongue base. Using a personal computer, a quantitative study of the video images was performed. The results were summarized as follows. 1) The movement pattern of the reconstructed tissue was generally saccadic rather than smooth. It was suggested that the swallowing pattern of the patients was different to that of normal controls. 2) Postoperative swallowing function was poorer in cases of the anterior type when compared to the lateral type. 3) In general, cases which showed relatively wide movement range appeared to achieve subjectively satisfactory swallowing function.View full abstractDownload PDF (2032K) -
KENSUKE WATANABE, HIROKO HAKUHISA1996 Volume 99 Issue 12 Pages 1738-1745,1811
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSGuinea pigs weighing 350g each were used in this experiment. A small piece of Gelform® containing 0.04mg of E. coli derived endotoxin was set on the round window 24 hours after intraperitoneal injection of 0.02mg endotoxin. Morphological changes in the cochlea were observed at 24 hours (previous report), 48 hours, 72 hours and 7 days after the introduction of the endotoxin into the middle ear. As the results of the morphological changes of cochlea at 24 hours after the introduction of the endotoxin were reported in previous paper1) we present only an outline of these. Inflammatory cell infiltration and bleeding were observed in both endolymphatic and perilymphatic spaces. Inflammatory cells also infiltrated the stria vascularis, spiral ligament, spiral prominence and organ of Corti. Almost all of the inflammatory cells were neutrophils. Blood sludge was observed in all of the strial capillaries of the upper three turns. The hair cells were intact in every turn except for having small vacuoles. Intermediate cells and marginal cells of the stria vascularis were shrunken. At 48 hours after the introduction of the endotoxin into the middle ear, the changes in the stria vascularis were almost the same as at 24 hours. However the infiltrated inflammatory cells changed from neutrophils to macrophages. Macrophages had phagocytosed many neutrophils. The hair cells had many large vacuoles. At 72 hours, the enlargement of the intercellular space in the stria vascularis disappeared and damage to the hair cells decreased although many macrophages were still observed. At 7 days, the cochlea was morphologically normal.View full abstractDownload PDF (9094K) -
YOSHIRO YAZAWA, HIROYA KITANO, MIKIO SUZUKI, AKIRA KODAMA, KAZUTOMO KI ...1996 Volume 99 Issue 12 Pages 1746-1750,1811
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSBetween 1978 and 1981, Feldmann's osteopathic approach was often used to manage chronic middle ear disease. In this procedure, the superior and posterior segment of the ear canal wall was cut after complete mastoidectomy. removed temporarily and re positioned in the previous position after handling the diseased focus in the tympanic isthmus area. Forty-one cases (24 cases of noncholesteatomatous chronic otitis media and 17 cases of cholesteatoma) were followed and long-term results of this procedure were studied with regard to re-operative findings following this procedure. Among the 41 patients, 13 (31.7%) required revision surgery because of cholesteatoma formation, infection etc. Seven of these 13 patients (53.8%) required revision surgery because of cholesteatoma formation afrer this procedure. None of these 7 cases appeared to involve residual cholesteatoma. The most important problem is that 3 of the 7 patients showing cholesteatoma formation had non-cholesteatomatous chronic otitis media before this procedure. In other words, the Feldmann's osteoplastic approach may iatrogenically induce cholesteatoma formation in noncholesteatomatous chronic otitis media. The re-operative findings indicated that the re-positioned canal wall in this procedure may have small bony defects or bony erosion, inducing pocket formation through these defects to create a new cholesteatoma. Although recent literature concerning tympanoplasty recommends posterior canal wall reconstruction using cartilage, bone, ceramic material or bone-pate rather than the canal wall down method, careful follow-up should be continued with regard to pocket formation and/or cholesteatoma formation.View full abstractDownload PDF (1985K) -
THE RELATION BETWEEN HEAD POSITION AND EYE MOVEMENTKAYO SUZUKI1996 Volume 99 Issue 12 Pages 1751-1757,1811
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThree-dimensional analysis of vestibulo ocular reflexes, using a computerized eye movement analysis system, was carried out in 16 normal human subjects. We examined the relationship between head position and vestibulo-ocular reflexes. The purpose of this study was to clarify the relationship between the functional plane and the anatomical position of the semicircular canals. The subjects were stimulated by pendular rotation with their heads fixed between 40° nose down and 50° nose up in 10° steps with respect to the orbitomeatal line and the lateral canal line. The gain in horizontal eye movement which results from the lateral canal, was the highest at 20° nose down. On the other hand, the gains in vertical and torsional eye movement, which result from the vertical canals, were the lowest at 10° nose up. The phase of vertical and torsional eye movement changed 180° at 10° nose up. These data indicate that the functional plane of the lateral canal almost coincided with the anatomical position. However, at this functional plane of the lateral canal, the influence of vertical canals was not the least. We suggest that this could be the reason why angles formed by the intersection of the lateral canal plane and the vertical canals were not 90°. We could interpret this finding as showing that at the 10° nose up position, the origin of eye movement alternated between the frontal and posterior canals.View full abstractDownload PDF (2244K) -
KOTARO ISHIKAWA, YUYA TAMAGAWA, KOUICHI ABE, KEN KITAMURA, MASATAKA OK ...1996 Volume 99 Issue 12 Pages 1758-1763,1813
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSIn the present study, a survey of otorhinolaryngological medical care by the general practitioner, including the relationship between general practitioners and otorhinolaryngologists in rural areas was carried out. A questionnaire for otorhinolaryngological medical care by the general practitioners was sent to 326 hospitals with less than 100 beds where non-otorhinolaryngological doctors who had graduated from Jichi Medical School were working. Of these hospitals 164 (50.4%) responded. Most respondents said that they had about 3 or 4 patients with otorhinolaryngological disease per month. The distance between most hospitals and the nearest otorhinolaryngologists was within one hour by available transportation facilities. About 70% of the respondents were provided with simple otorhinolaryngological instruments, such as an aural speculum, a nasal speculum and a head mirror. The most frequent otorhinolaryngological diseases which they treated were vertigo, allergic rhinitis and upper respiratory infection including acute tonsillitis and pharyngolaryngitis. Only 10 to 20% of the general practitioners had otorhinolaryngological training. We found several problems in otorhinolaryngological medical care in rural areas. Patients with otorhinolaryngological disease seek otorhinolaryngological care at the nearest medical facility where general practitioners with inadequate otorhinolaryngological experience examine patients with inadequate otorhinolaryngological instruments. Therefore, a close relationship between general practitioners and otorhinolaryngologists should be developed and the quality of otorhinolaryngological medical care should be raised in rural areas.View full abstractDownload PDF (549K) -
COMPARED WITH THE RESULTS OF PURE TONE, SPEECH OR BINAURAL AUDIOMETRYYOSHIYUKI OHTSUKA1996 Volume 99 Issue 12 Pages 1764-1771,1813
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThe relationships between the auditory brainstem response (ABR) latencies and the results of three phychophysical measurements-pure tone audiometry, speech discrimination test and directional hearing test-were investigated in 58 subjects with presbyacusis. ABR latencies in presbyacusis patients were also compared with those in young adults with normal hearing or cochlear hearing loss. The results were as follows: There was a significant correlation between the average thresholds of pure tone audiometry and latencies of ABR waves I, III, V and/or interpeak latencies of waves I-III and I-V. There was a significant correlation between the scores of the speech discrimination test and latencies of waves I, III and V. There was also a significant correlation between the value of the directional hearing test and only interpeak latency of waves I-III. It was found that the I-III peak interval was prolonged in the ABR of presbyacusis, and that the results of pure tone audiometry and directional hearing tests were rather well correlated with the prolonged I-III peak interval.View full abstractDownload PDF (801K) -
SHINGO MURAKAMI, NAOHITO HATO, JOJI HORIUCHI, YOSHITO MIYAMOTO, HISASH ...1996 Volume 99 Issue 12 Pages 1772-1779,1813
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSClinical studies were performed on 325 patients with Ramsay Hunt syndrome who were treated in the Facial Nerve Clinic at Ehime University Hospital between 1976 and 1995. The clinical manifestations of Ramsay Hunt syndrome were various. Three major symptoms, auricular vesicles, facial paralysis and vestibulo-cochlear dysfunction, were found in 57.6% of the patients although these symptoms did not always appear simultaneously. Auricular vesicles appeared before (19.3%), during (46.5%), or after (34.2%) the onset of facial paralysis. Hearing loss was observed subjectively in only 20% but objectively in 48.2% of the patients. Hearing loss appeared before (34.3%), during (34.3%), or after (31.3%) the onset of facial paralysis. Complete recovery from facial paralysis was achieved in 52.4% of the patients. Good recovery of the facial nerve function was achieved in patients who had zoster vesicles or vestibulo-cochlear dysfunction preceding the development of facial paralysis. Complete recovery of hearing was also achieved in 45.4% of the patients, and the recovery was better in patients having light hearing loss, less than 35dB. The patients younger than 16 years old showed better recovery from both facial paralysis and hearing loss than the patients older than 60 years. Glossopharyngeal nerve or vagal nerve paralysis concomitant with facial paralysis was found in 8 (2.5%) patients. The outcome of glossopharyngeal nerve paralysis was good but that of the vagal nerve was poor.View full abstractDownload PDF (917K) -
[in Japanese]1996 Volume 99 Issue 12 Pages 1780-1783
Published: December 20, 1996
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSDownload PDF (2622K)
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