All issues
Volume 96, Issue 2
Displaying 1-18 of 18 articles from this issue
- |<
- <
- 1
- >
- >|
-
TOSHITAKA IINUMA, KEN-ICHIROU ISHIO, HIROYOSHI YOSHINAMI, JUN-ICHI KUR ...1993 Volume 96 Issue 2 Pages 175-181,361
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSA total of 59 cases of mild facial fractures (simple orbital wall fractures, 34 cases, other facial fractures, 25 cases) with the clinical suspects of orbital wall fractures were evaluated both by conventional views (Waters' and Caldwell views) and coronal CT scans. Conventional views were obtained, as an average, after 4 days and CT after 7 days of injuries. Both the medial wall and the floor were evaluated at two sites, i.e., anterior and posterior. The ethmoid-maxillary plate was also included in the study. The degree of fractures was classified as, no fractures, fractures of discontinuity, dislocation and fragmentation. The coronal CT images in bone window condition was used as reference and the findings were compared between conventional views and CT. The correct diagnosis was obtained as follows: orbital floor (anterior, 78%, posterior, 73%), medial orbital wall (anterior, 72%, posterior, 72%) and ethmoid-maxillary plate (64%). The false positive diagnosis was as follows: orbital floor (anterior only, 13%), medial orbital wall (anterior only, 7%) and ethmoidmaxillary plate (11%). The false negative diagnosis was as follows: orbital floor (anterior, 9%, posterior, 10%), medial orbital wall (anterior, 21%, posterior, 28%) and ethmoid-maxillary plate (21%).
The results were compared with those of others in the past.View full abstractDownload PDF (2455K) -
KIYOSHI TANAKA, YOSHIHITO YASUOKA, TAMIO KAMEI1993 Volume 96 Issue 2 Pages 182-191,361
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSNinety six patients with paranasal mucoceles (or pyoceles) were admitted and treated at Gunma University Hospital from 1977 to 1986 (age range 15-82 years; mean 46.4 years). We statistically investigated these cases paying a special attention to 25 patients with visual disturbance.
1) In 71 cases mucocele was located in the frontal or frontoethmoid sinus (FE group), in 12 it was found in the ethmoid sinus (E group), and in 13 it was situated in the sphenoid or sphenoethmoid sinus (SE group).
2) Sixty three cases had histories of previous surgery of paranasal sinuses and 29 cases were considered to have primary mucoceles.
3) The mean age of patients with primary mucocele was 56.4, while that with postoperative mucocele was 41.2.
4) In the FE group recurrence was so frequent that some device for surgical treatment should be considered (i.e., mucous membrane grafting, prolonged insertion of silicon tubes).
5) Visual disturbance was frequently observed in both the E group (7/12) and the SE group (9/13).
6) Visual disturbance may occur when mucocele compress the optic nerve and the globe at retrobulbar portion as well as at the optic canal. Twelve cases out of 25 with visual disturbance belonged in the former type.
7) Optic atrophy was most commonly seen in the SE group, but was recognized in 1 case even in the E group and the FE group respectively.
8) In patients with sudden visual disturbance, if only they were operated within a week after the onset, their visual acuity was remarkably improved except for serious cases.
9) In the cases presented with gradually attacked or varing visual disturbance, there was no correlation between the recovery of the vision and the duration of the disturbance.View full abstractDownload PDF (3647K) -
HIROTAKA NAKANO, TORU SEKITANI, YOICHI OGATA, HIDEKI OKAZAKI, TETSUYA ...1993 Volume 96 Issue 2 Pages 192-196,361
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSA case of paranasal sinusitis due to Pasteurella multocida (P. multocida) is reported. A 39year-old woman presented with chief complaints of rhinorrhea and headache. The patient kept a cat in her house and kept such close contact with it as to wake up by being licked every morning. Bacteriological examination revealed P. multocida isolated from her nasal discharge and also from the saliva of the cat kept by the patient. The two isolates were compatible with respect to biochemical properties, serotype and drug susceptibility. Therefore, P. multocida infection in this case was considered to have originated from the pet cat.
P. multocida infection has been increasing recently. One of the reasons is a pet boom. In order to prevent acquiring the infection from a pet animal, we should have knowledge about this infection, advise the patient to avoid close contact with pets, and provide valuable information concerning these problems to society from the viewpoint of zoonosis.View full abstractDownload PDF (2408K) -
PREOP. AND POSTOP. COMPARISONSYASUHIRO KASE, KEIITI ITIMURA, TOSHITAKA IINUMA1993 Volume 96 Issue 2 Pages 197-202,361
Published: February 20, 1993
Released on J-STAGE: March 19, 2009
JOURNAL FREE ACCESSChanges in nasal patency after nasal surgeries were evaluated with acoustic rhinometry. Fourteen cases (20 sides) were included in the evaluation and the following types of nasal surgery were performed: 2 partial maxillectomies, 11 Caldwell-Luc operations, 4 endonasal ethmoidectomies, 1 endonasal maxillary sinusectomy and 2 septoplasties. The evaluation with acoustic rhinometry was routinely performed on two occasions; the day before and 7-14 days after the surgery. The preop. and postop. results of the evaluations of nasal volume (6.9-14.1 cm by the area-distance curve) and nasal area (averaged areas at 11.0cm and 13.4cm by the areadistance curve) were compared. Postop. results in all but one case demonstrated increases in both nasal volume and nasal area, indicating that acoustic rhinometry has practical applications in preop. and postop. evaluations of nasal patency.
Three aspects remain to be clarified. The first is the influence of the nasal cycle, which varies considerably at the time of both preop and postop evaluations. The second is the influence of the paranasal sinuses. When the results of cases who had undergone endonasal ethmoidectomy or septoplasty were compared to those who had received partial maxillectomy or Caldwell-Luc operation, the latter showed greater increases in nasal patency, suggeting that the cavities of paranasal sinuses, especially of the maxillary sinus, influence the results of acoustic rhinometry. The third is the size of the anterior entrance of the middle meatus. When the entrance is narrow, the acoustic pulse generated by acoustic rhinometry will not reach up to the paranasal sinuses so that the size of the entrance will again influence the results. These three aspects await the results of further studies which are now in progress.View full abstractDownload PDF (3092K) -
SHIGEYO NAGASE1993 Volume 96 Issue 2 Pages 203-211,365
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSFour series of experiments were performed to evaluate the effects of methamphetamine on the auditory system of guinea pigs. Methamphetamine was administered to guinea pigs via intraperitoneal injection, and the time course of latencies of waves I, II, III, and IV, interpeak latencies of waves I-III, III-IV, and I-IV of the ABR, and the near-field potential of the inferior colliculus and cochlear nerve were measured. These physiological data were analyzed in comparison with the distribution of methamphetamine in the inferior colliculus and cochlea following its immunohistochemical staining, as well as the serum methamphetamine concentration.
The following results were obtained;
1. The wave latencies and interpeak latencies of ABR decreased up to 120 minutes after the administration.
2. In the cochlear nerve recording, the amplitude of the response increased and the latency decreased up to 90 minutes after the administration. These changes in responses were, however more prominent in the inferior colliculus recording.
3. Immunohistochemical examination revealed that methamphetamine was present in the hair cells of the organ of Corti, spiral ligament, spiral ganglion cells and the inferior colliculus 30 minutes after the administration.
4. The serum concentration of methamphetamine rapidly reached its maximal level, and then dropped gradually, logarithmically, having become almost horizontal at a low level 6 hours later.
These results suggest that methamphetamine does exert an effect on the peripheral auditory system, as well as on the central nervous system, which is generally regarded as the effector organ. It is assumed that the pharmacological effect of methamphetamine on the cochlea involves excitation of sensory cells, afferent nerve fibers and spiral ganglion cells.View full abstractDownload PDF (2425K) -
NORIYUKI UENO, HIKARU SUDO, YASUO HATTORI, KURATA YUGE, TAKAYOSHI MIYA ...1993 Volume 96 Issue 2 Pages 212-218,365
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThe external ear appears only in mammals and possesses a great diversity of forms. In addition, multiple nerves are distributed in the external ear. The nerves which are distributed in the external ear were investigated in humans and in the musk shrew (Suncus murinus) in a macroscopic study.
The following results were obtained.
Cranial nerves (CN) V, VII, X and cervical nerves supply the auricle and the external meatus in both humans and the musk shrew. Branches of the third division of CN V supply an anterior part of the external meatus and the anterior part of the auricle in both humans and the musk shrew.
A branch of CN X, together with a branch of CN VII, supply the posterior parts of the external meatus in humans. In the musk shrew, a branch of CN X, together with a branch of CN VII, supplies the posterior part of the external meatus and the central part and the anterior portion of the auricle.
Branches of the cervical nerve supply the posterior part of the auricle.
Branches of the cervical nerve supply the posterior part of the external meatus and the central and posterior parts of the auricle in the musk shrew.View full abstractDownload PDF (2828K) -
A COMPARISON OF TREATMENT BY NEEDLE ASPIRATION AND INCISIONJUN YANO, WATARU OKITA1993 Volume 96 Issue 2 Pages 219-224,365
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSTo compare the efficacy of permucosal needle aspiration with that of incision and drainage in the management of peritonsillar abscess, we reviewed the charts of 32 patients, diagnosed as having peritonsillar abscess, who had been admitted to the Central Hospital of Social Health Insurance from June 1987 to December 1991. Twelve patients, 9 males and 3 females, were managed with incision and drainage. Their average age was 34years, with a range of 23 to 69 years. Permucosal needle aspirations were performed in 20 patients, including 14 males and 6 females. Their age ranged from 16 to 65 with a mean of 36years. All patients received parenteral antibiotics.
The duration of fever over 37.0°C averaged 2.0 hospital days (range, 0 to 8 days) in patients treated with incision and drainage, and 2.1 hospital days (range, 0 to 4 days) in patients treated with needle aspiration. The average postoperative time elapsed until the patient could eat solid food with ease was 3.8 hospital days with a range of 1 to 9days in patients treated with incision and drainage, and 3.2 hospital days with a range of 1 to 7days in patients treated with needle aspiration. The hospital stay ranged from 3 to 9days with an average of 5.4 days in patients treated with incision and drainage, and from 4 to 10days with an average of 5.5 days in patients treated with needle aspiration.
These data indicate that permucosal needle aspiration of peritonsillar abscess provides symptomatic relief and cure which are as rapid as those of incision and drainage. The follow-up data showed no difference in recurrence rate. We recommend permucosal needle aspiration as the firstchoice treatment for peritonsillar abscess.View full abstractDownload PDF (987K) -
CHIKASHI MIZUKAMI, ETSUO YAMAMOTO, MASAKI OHMURA, HIROYUKI OIKI, JUN T ...1993 Volume 96 Issue 2 Pages 225-230,365
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThe management and storage of pure tone audiometry data creates a major problem for otolaryngological clinics. We have devised a new computerized database system to overcome this problem. The hardware involved includes multiple audiometers and computers interfaced with a glassfiber local area network (Pi-Net). The software used is database 3 plus, a popular database language and utility software package. Programs were written for data entry, data transfer, reference, entry of patient ID, and evaluation of tympanoplasty.
The following benefits of the system are noted.
1) Data entry is possible at every terminal (audiometer and computer).
2) Storage capacity is sufficient for more than 10 years of operation.
3) All data can be retrieved rapidly at any terminal.
Evaluations of pre-and post-tympanoplasty hearing loss are facilitated by this system. This system is very effective for follow up of hearing disorders.View full abstractDownload PDF (3810K) -
WITH JORO SPIDER TOXIN ON THE CONCENTRATIONS OF AMINO ACIDS IN THE PERILYMPHMASAMITSU SENARITA, MASAE KOMENO, FUJIKO SERIZAWA, AKIRA HARA, KENJI M ...1993 Volume 96 Issue 2 Pages 231-237,367
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSGlutamate (Glu) is considered one of the most probable neurotransmitter candidates in primary afferent nerves of the cochlea. In the present study, the amino acid profile in the perilymph was determined in order to investigate the effects of acoustic overstimulation and perilymph perfusion with Joro Spider Toxin (JSTX), a specific antagonist of the quisqualate sensitive Glu receptor, on the stimulus-induced release of Glu.
In the first series of experiments (control group; n=10), samples of the scala tympani perilymph (PST) were collected from albino guinea pigs at 60 and 75 min after initiating cochlear perfusion with an artificial perilymph. In the second series of experiments (acoustic overstimulation group; n=7), the PST samples were collected before (at 60 min after the initiation of perilymph perfusion) and after (at 75 min after the initiation of perilymph perfusion) exposure to a pure tone (2000Hz, 110dBSPL for 15 min). In the third series of experiments (JSTX group; n=8), the PST samples were collected as described above under condition of cochlear perfusion with an artificial perilymph containing of 3.54×10-8M and 3.54×10-6M of JSTX. The concentrations of Glu, aspartate, glycine, alanine and leucine were measured by high-performance liquid chromatography (HPLC) using phenilisothiocyanate derivatization. There was no significant effect of acoustic overstimulation or perilymph perfusion with JSTX on the levels of amino acids. These results suggest that the amount of Glu released from the hair cells to the perilymphatic cavity by the acoustic overstimulation might be too small to be detected by the HPLC method used in the present experiments or that released Glu might immediately be degraded to glutamine.View full abstractDownload PDF (568K) -
SHIN KAWAI1993 Volume 96 Issue 2 Pages 238-248,367
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThis report describes studies on electrode selection of the speech processor of a 22 channel cochlear implant device for 14 Japanese consonants, and on consonant recognition of 23 cochlear implant patients as they relate to electrode selection.
The means of electrode selection was studied using a special device capable of detecting code signals delivered from the speech processor for electrode selection. Young male voices consisting of/a/+consonant+/a/ were presented as sound stimuli, and the electrode numbers selected were recorded for each consonant. The recorded numbers were grossly divided into two groups; a higher frequency range of about 500Hz to 4, 000Hz and a lower range of 0Hz to about 1, 100Hz. They showed characteristic patterns for each consonant, and these electrode number patterns were compared with patterns estimated from a sonagram. Although there were some differences between these two patterns in unvoiced stop consonants, they were roughly parallel to each other in other consonants.
The information transfer ratio was calculated based on confusion matrices obtained from test results on 23 patients for 14 consonants. The ratio was high in voicing and semivowels, whereas it was relatively lower in plosives. This seems reasonable on the basis of patterns of electrode number transitions. Nasals and fricatives, however, showed lower information transfer ratios despite adequate electrode selection, and this may due to poorer information transition or the high frequency components of these consonants.View full abstractDownload PDF (2710K) -
YUICHI KATO1993 Volume 96 Issue 2 Pages 249-259,367
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThree dimensional visualization of the matrical fibrous structure of pleomorphic adenomas of the parotid glands was performed by the freeze-fracture, deep-etch replica method (D-E). Three types of fine architecture, two in the myxoid area and one in the chondroid area, which could not be observed by ordinary transmission electron microscopy (TEM), were revealed. In addition, granular connections between the tumor cell membrane and matrical fibers, probably cell surface proteins, were visualized.
In the myxoid area, one type of matrix which has a structure that cannot be identified on TEM, D-E demonstrated a uniform fine fibrous network consisting mainly of 7-10 nm diameter filaments and various architectures. These structual components were interlinked in a specific order and formed a basement membrane-like structure which contained the so-called‘hexagon-lattice structure’ reported by Sawada. Another type which appears as an irregular spotty structure and a few collagen-bundles on TEM, was revealed by D-E to be composed of a fine fibrous network and collagen-bundles. The collagen-bundles and the network were also interconnected to form a more complicated network.
In the chondroid area, the type of matrix appearing as a mottled amorphous area consisting of electron-dense and electron-lucent parts on TEM, was shown by D-E to be composed of mainly collagen-bundles and a less prominent fine fibrous network.
As for the cell surface, there were numerous granular structures which were seen to be anchored within the membrane and rigidly connected with 7-10 nm diameter fibrils. However, direct connections between the cell membrane and collagen-bundles were unremarkable. No tumor cell basement membrane was observed.
These findings indicate that, in constructing the tumor tissue and maintaining the tumor cells, the matrix could preserve suitable environment for these cells, and that the matrix and tumor cells may influence each other. To date, the matrix of this tumor has been regarded as a relatively uninteresting element. It was thought to lack any apparent structure and have little involvement in tumor biology. We, on the other hand, believe that this tumor matrix is an important component, and that furture investigation of this matrix will provide new insights into the study of pleomorphic adenoma.View full abstractDownload PDF (13925K) -
EFFECT OF TRANSIENT ISCHEMIA ON INNER EAR BLOOD FLOWYASUHIRO FUZISAKI1993 Volume 96 Issue 2 Pages 260-270,367
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSCochlear blood flow (CoBF) was measured by intravital microscopy (IVM) and laser Doppler (LD) methods in normal guinea pigs and after a single norepinephrine (NE) injection into the carotid artery. CoBF changed in proportion to BP changes in normal animals. CoBF values by LD correlated well (r=0.67) with CoBF measured by IVM when BP changed in the 35 and 70mm Hg range. A linear regression line was obtained as y=1.407X-2.996. No correlation was found between the diameters of radiating arterioles (RA) and blood volume (i.e., the hemoglobin concentration index). NE injection into the carotid artery induced the formation of sludge at RA, resulting in decreased local CoBF. A decrement in CoBF was also observed by LD after injection. Although similar patterns of CoBF changes were obtained by these two methods after injection, the degree of CoBF change by LD appeared to be lower than that by IVM. Our result indicates that the combination of these two methods provides a better understanding of cochlear circulation.View full abstractDownload PDF (4469K) -
FUMIKO YOKOUCHI1993 Volume 96 Issue 2 Pages 271-281,369
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSIn order to study the space orientation of optokinetic afternystagmus in humans, I examined optokinetic afternystagmus in the yaw axis (horizontal OKAN, HOKAN) in both sitting and the 90°lateral tilted positions in 29 normal volunteers. Optokinetic stimuli of 80°/s were given for 120 seconds using a projection type stimulator. Eye movements were recorded in two dimensions, horizontal and vertical, to the head fixed coordinate axis using conventional electronystagmography. Five parameters of HOKAN (maximum slow phase velocity, time constant of slow phase velocity, total nystagmus number, frequency and duration) in the sitting position were compared with those in the 90° lateral positions tilted to the right and to the left. The following results were obtained.
1) OKAN were recorded from all subjects in the sitting position. The mean and the standard deviation of maximal slow phase velocity, duration and the time constant were 11.6±4.0/s, 35.7±15.6 seconds and 15.1±8.5 seconds, respectively.
2) In the lateral positions, the rate of appearance of OKAN decreased to 72%. In the lateral positions, the slow phase velocity decreased to 68% of that in the sitting position.
3) The rate of appearance and the slow phase velocity of OKAN were more active in the direction horizontal to the ground than in the perpendicular direction.
These results suggest that otolith input modifies HOKAN in humans.View full abstractDownload PDF (2910K) -
HITOSHI HENTONA1993 Volume 96 Issue 2 Pages 282-296,369
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThe distribution of motor nuclei in feline neck muscles at the level of the third and fourth cervical vertebrae of spinal cord was investigated, using retrograde labelling with horseradish peroxidase (HRP). HRP powder was directly injected into the cut ends of the peripheral nerves innervating each muscle. Investigated muscles in this thesis included 5 ventral muscles: Levator scapulae m. (LS), Levator scapulae ventralis m. (LSV), Longus colli m. (LC), Longus capitis m. (LCP), Intertransversarius ventralis m. (ITV). Two dorsal muscles were also examined; Splenius m. (SP) and Biventer m. (BV). The findings in retrogradely labelled motoneurons of each muscle were as follows:
1) LS and LSV (V1 ventral muscles)
Labelled motoneurons were observed at the lateral border of the ventral horn, and the distribution of LSV was more dorsal than that of LS. Their cellular distributions varied from the rostral end of the third cervical segment dorsolaterally to the caudal end of the fourth cervical segment ventromedially.
2) LC, LCP and ITV (V2 ventral muscles)
Labelled motoneurons were observed at the medial border of the ventral horn. The distribuion of LCP was more dorsal than that of LC and ITV, but their cellular distributions were largely intermingled. The variation in cellular distribution, which was observed in V1 ventral muscles, was not recognized in this muscle group.
3) SP and BV (D1 and D2 dorsal muscles)
Labelled motoneurons were observed at the apex of the ventral horn, referred to as the ventromedial nucleus by Rexed. The distribution of SP was more dorsolateral than that of BV, and the changes in cellular distribution seen in V1 ventral muscles were also observed in these muscles. Some unorganized labelled cells were found at the medial border of the ipsilateral ventral horn, anterior funiculus, anterior commissure and contralateral ventral horn. These irregularly positioned cells were not found in the staining of the ventral muscles.
Organized distributions of motoneurons in the ventral horn corresponded respectively to the classification of trunk muscles, as described by Nishi (1938) in accordance with the perirheral innervation of each trunk muscle.
These results indicate that the pattern of peripheral innervation reflects the spinal level, and provides important information for electrophysiological analysis of the neural network between the central and peripheral nervous systems.View full abstractDownload PDF (10869K) -
1993 Volume 96 Issue 2 Pages 297-306
Published: February 20, 1993
Released on J-STAGE: December 22, 2010
JOURNAL FREE ACCESSDownload PDF (1049K) -
1993 Volume 96 Issue 2 Pages 306-319
Published: February 20, 1993
Released on J-STAGE: December 22, 2010
JOURNAL FREE ACCESSDownload PDF (1471K) -
1993 Volume 96 Issue 2 Pages 319-344
Published: February 20, 1993
Released on J-STAGE: December 22, 2010
JOURNAL FREE ACCESSDownload PDF (4246K) -
[in Japanese]1993 Volume 96 Issue 2 Pages 346-349
Published: February 20, 1993
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSDownload PDF (255K)
- |<
- <
- 1
- >
- >|