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Volume 49, Issue 1
Displaying 1-7 of 7 articles from this issue
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Kazunori MORI, Haruko MIHOKI, Tadashi NAKAJIMA, Minoru HIRANO, Kazuyuk ...1998 Volume 49 Issue 1 Pages 1-10
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSThe treatment modality for laryngeal carcinoma employed now at Kurume University was described in detail and its recent treatment outcomes were reported comparing with previous findings.
Since April 1991, otolaryngologists and radiologists have worked together to treat laryn-geal carcinoma intimately as a team practice. Previously a total of 244 patients with glottic carcinoma and 125 patients with supraglottic carcinoma were solely treated by otolaryn-gologists. A total of 158 patients with glottic carcinoma and 52 patients with supraglottic carcinoma has been treated between April 1991 and December 1995 by both otolaryngologists and radiologists. In this study, the follow-up period was 18 months or longer.
With respect to the treatment outcomes, for patients with glottic carcinoma before April 1991, the 5-year local control rate, larynx conservation rate, and disease specific survival rate were 78.3%, 93.5%, and 94.5% respectively, while after this date these rates were 92.0%, 98.4%, and 97.2%, respectively. For patients with supraglottic carcinoma before April 1991, these rates were 75.3%, 74.1%, and 67.0% respectively, while these after this date were 90.9%, 95.2%, and 90.4%, respectively. This shows a great improvement relative to the era when only otolaryngologists treated patients with laryngeal carcinoma. However, on the basis of these results, it was also concluded that some kind of new treatment policy will be necessary in future to conserve the larynx in advanced carcinoma and to control neck and distant metastases.View full abstractDownload PDF (1853K) -
Case Reports and Review of the LiteratureKo UEDA, Tomoyuki YOSHIDA, Hideki YAMAGUCHI, Susumu ARAKI, Mamoru SUZU ...1998 Volume 49 Issue 1 Pages 11-19
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSMalignant tumors arising from laryngeal gland cells are extremely rare. Adenoid cystic carcinoma, mucoepidermoid carcinoma and adenocarcinoma are known examples. In the past 15 years, we have seen 2 cases of mucoepidermoid carcinoma, and one case each of adenoid cystic carcinoma and adenocarcinoma. Only 26 cases of adenoid cystic carcinoma, 17 cases of mucoepidermoid carcinoma and 13 cases of adenocarcinoma have been reported in Japan since 1972. As these tumors grow under the mucous membrane, they can easily escape early diagnosis. Biopsies using a fiberscope often fail. Laryngectomy with a sufficient safety margin should first be performed on tumors arising from the laryngeal gland.View full abstractDownload PDF (2069K) -
Katsuya SAEKI, Eiji YUMOTO, Yoshimi KADOTA1998 Volume 49 Issue 1 Pages 20-26
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSVertical movements of the vocal folds during phonation were analyzed using a laser doppler vibrometer (LDV) . Four excised canine larynges were used for the study. A laser beam reflected on the upper surface of the vocal fold was fed into a LDV to measure verticalvelocity and displacement of the mucosal wave. Signals from the LDV during vibration were recorded under two conditions : with and without vocal fold elongation. Vertical velocity and displacement increased as mean airflow rate was increased. Displacement decreased when the vocal fold was elongated. On the other hand, the vertical velocity did not always increase when the vocal fold was elongated.View full abstractDownload PDF (2194K) -
Hajime ISHINAGA, Akihiko KATO, Yukimitsu TAKAHASHI, Hiroyuki YAMADA1998 Volume 49 Issue 1 Pages 27-30
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSSince we use fine-needle aspiration cytology under ultrasonographic imaging for the diagnosis of thyroid tumors, we can easily detect small thyroid cancers.
However, there is a question whether to operate on the small well-differentiated thyroid cancers or not, because the majority of the thyroid cancer have a good prognosis.
Therefore, we studied 95 patients with pre-operative T1NO thyroid cancer who had been treated in our department from 1986 to 1996. 35 patients of the 95 had positive nodes (38.9%), 21 had intrathyroidal metastases (22.1%) ; and 7 had extra-thyroidal invasions (7.4%) . Two patients out of these 7 showed an invasion of the trachea that might have had an influence on survival.
We feel that surgical treatment is indicated for small thyroid cancer based on.View full abstractDownload PDF (787K) -
Improved Surgical Technique in Combination with Closure of Posterior GlottisKiminori SATO, Tadashi NAKAJIMA1998 Volume 49 Issue 1 Pages 31-35
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSThe posterior part of the larynx closes completely not at the glottis but at the supraglottis, and the bilateral arytenoids come into contact at the superior portion of the arytenoid cartilage from the vocal process to the apex. We have performed surgical closure of the larynx for intractable aspiration using this functional anatomy of the posterior glottis.
Our operative procedure was as follows. 1) Suprahyoid pharyngotomy was performed under general anesthesia. 2) To close the posterior part of the larynx, the mucosa of the superior portion of the arytenoids was removed to make a raw surface, and bilateral arytenoid cartilages were sutured. Then, the mucosa of the bilateral arytenoids was also sutured. 3) To close the supraglottis, the mucosa of both the aryepiglottic folds and the laryngeal surface of the epiglottis were removed and sutured to each other.
The advantages of this procedure were the following. 1) This method makes a complete closure of the posterior part of the larynx. As a result, it prevents aspiration securely. 2) This method can make a closure of not only the supraglottis but also of the glottis using the suprahyoidpharyngeal approach.View full abstractDownload PDF (4499K) -
Masahiro KAWAIDA, Hiroyuki FUKUDA, Yan MA, Yoshihisa KAWASAKI, Naoyuki ...1998 Volume 49 Issue 1 Pages 36-42
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSA computer-integrated videostroboscope system (manufactured by the Kay Elemtrics Corporation) has been developed to visualize vocal fold vibration. The system consists of a KAY RLS-9100 laryngostroboscope, rigid laryngoendoscopes connected to a compact CCD color video camera, a display monitor, a video tape recorder (VTR), a digital color video printer and a specially programmed computer. It is technically simple to perform a videostroboscopic examination with this system, which was used to evaluate the vibratory pattern of the vocal folds in two female patients. This system provided distinct stroboscopic images and autosequence multiple images of both high quality and resolution of detail. The new system should be useful in diagnosing dysphonia.View full abstractDownload PDF (7573K) -
Masahiro TANABE, Shinzo TANAKA, Manabu MINOYAMA, Michitaka IWANAGA, Ta ...1998 Volume 49 Issue 1 Pages 43-46
Published: February 10, 1998
Released on J-STAGE: October 20, 2010
JOURNAL FREE ACCESSThyroplasty type I has been employed in treatment of patients with small glottal chinks during phonation due to unilateral vocal fold paralysis. To apply this operation to patients with larger glottal chinks, we devised a method of inserting a large silastic prosthesis between the inner perichondrium and the thyroid cartilage. Without severing the inner perichondrium, a large prosthesis is usually difficult to insert because of the stiffness of the perichondrium. Moreover, severing the perichondrium may cause an intrusion of the prosthesis into the thyroarytenoid muscle, that may then impede vocal fold vibration. In this report, we describe a new technique for elevating the inner perichondrium further to the posterior and inferior edges of the thyroid cartilage.View full abstractDownload PDF (2086K)
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