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Volume 105, Issue 11
Displaying 1-8 of 8 articles from this issue
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Kasumi Oka, Kazuaki Chikamatsu, Masao Eura, Fumihiro Katsura, Eiji Yum ...2002 Volume 105 Issue 11 Pages 1109-1115
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSWe compared preoperative evaluations of 93 fine-needle aspiration biopsies (FNAB) of major salivary gland tumors done over a 5 year period with pathologic diagnoses of surgically resected specimens. The overall accuracy was 88.5%. Eight of 15 aspirates from malignant tumors were correctly diagnosed by FNAB, for a sensitivity of 53.3%, while 69 of 72 aspirates from benign tumors were correctly diagnosed by FNAB, for a specificity of 95.8%. Five malignant tumors diag- nosed as benign by FNAB were squamous cell carcinoma, carcinoma in pleiomorphic adenoma, malignant lymphoma, low-grade mucoepidermoid carcinoma, and acinic cell carcinoma. The false negatives in the first 2 cases appeared to be due to inaccurate placement of the aspiration site. The other 3 cases showed lack of atypia, leading to a benign diagnosis. Malignant lymphoma is difficult to diagnose as malignant, even in properly aspirated specimens, so we recommend open biopsy when malignant lymphoma is suspected from physical and radiological examinations. A case confirmed pathologically as benign myoepithelioma was diagnosed as adenoid cystic carcinoma preoperatively, based on the finding of a cribriform pattern containing mucin. It should be borne in mind that myoepithelioma and adenoid cystic carcinoma are difficult to distinguish by FNAB.
Although FNAB is useful in diagnosing major salivary gland tumors, its low sensitivity (high percentage of false negatives) is undesirable. It may thus be helpful in intraoperative decision-making when combined with frozen sectioning.View full abstractDownload PDF (1391K) -
Naoko Murakami, Hirotaka Hara, Hiroshi Yamashita2002 Volume 105 Issue 11 Pages 1116-1120
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSBetween December 1996 and June 2001 at Yamaguchi University Hospital overnight polysomnography (PSG) was conducted on 167 patients with snoring and sleep apnea. We treated obstructive sleep apnea syndrome (OSAS) patients with uvulo-palate-pharyngoplasty (UPPP), and/or nasal surgery, nasal continuous positive airway pressure (nasal-CPAP), and prosthetic dental devices. We studied the effects of surgery and dental device use by follow-up PSG. Nasal-CPAP therapy was done for lower subsequent compliance. We discuss results with reference to the literature.View full abstractDownload PDF (995K) -
Nobuaki Takahashi2002 Volume 105 Issue 11 Pages 1121-1127
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSObjective: We studied normal F wave parameters and F wave changes in patients with longstanding facial paralysis.
Subjects: Controls were 11 healthy volunteers studied to estimate normal F wave parameters. Subjects were 8 patients with Hunt's syndrome and 12 with Bell's palsy available for F wave detection among outpatients at our department between April 1999 and March 2000. They had ENoG of 0% within 2 weeks of paralytic onset. The test was repeated 68 times.
Diagnostic intervention: Results of 68 tests were classified into 5 groups based on the course after paralysis developed and their F wave parameters were compared with controls. F wave parameters were minimal latency, maximum latency, mean latency, and frequency of F wave development. Stimulation was repeated 20 times in a test.
Results: No significant difference was noted in minimal latency in each group compared to controls. Maximum and mean latency were prolonged significantly in each group compared to controls. The frequency of F wave development was significantly reduced in groups in which examinations were done in less than 6 months and for 6 months to 1 year.
Conclusions: Nerve fibers with fast conduction were considered to have recovered with on 6 months. This suggested that nerve conduction velocity in facial paralysis patients does not recover the same as normal conduction velocity. The maximum and mean latency in each of the postpalsy groups was significantly longer than that in the normal control group. We therefore concluded that regenerated nerve fibers include some with a conduction velocity significantly slower than normal. The frequency in groups A and B was significantly lower than that in controls, but after 1 year or more had elapsed after the onset of palsy, the frequency was approximately the same as that in controls.View full abstractDownload PDF (678K) -
Mutsumi Watanabe, Makoto Kano2002 Volume 105 Issue 11 Pages 1128-1137
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSWe studied the comparative pharmacokinetics of platinum between intraarterial and intravenous CDDP infusion in male rats. Platinum concentrations in cervical tissues, serum, and tongue tissues were measured by a single intraarterial infusion or an intravenous infusion at a CDDP dose of 10mg/kg. Intraarterial infusion was conducted through the left common carotid artery and intravenous infusion through the left external cervical vein. Tissues and blood samples were collected from bilateral sides every 30 minute for 120 minutes after completion of CDDP infusion.
Platinum levels in serum showed no significant difference between the 2 routes. Platinum levels in tongue tissue showed a significant difference between the 2 routes favoring of intraarterial administration 30 minutes after infusion.
Platinum levels in left cervical tissue following intraarterial administration peaked 90 minutes after infusion, signifi-cantly higher than that in right cervical tissue or that following intravenous administration.
These findings suggest that CDDP transfers from target organs to neck tissues of the dosage side via the lymphatic duct, and that intraarterial infusion chemotherapy is effective at the target organ and at cervical lymph nodes or cervical tissues.View full abstractDownload PDF (3722K) -
Hiroaki Ichijo2002 Volume 105 Issue 11 Pages 1138-1142
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSTo clarify anatomical relationships between the left and right vertical semicircular canal (SCC), we measured angles between the left and right posterior SCCs, and angles between left and right anterior SCCs. Subjects were T2 images of axial magnetic resonance imaging (MRI) in 50 patients reporting headaches. The mean angle between the left and right posterior SCC was 92.6 degrees (S.D.=11.7) and that between the left and right anterior SCC was 76.1 degrees (S.D.=10.4). These results suggest that angles between the left and right vertical semicircular canals are not always 90 degrew, and interindividual differences in the relationship between canal planes are great, indicating a need for discretion in analyzing peripheral nystagmus.View full abstractDownload PDF (1472K) -
Tatsuya Fujiyoshi, Kyoya Goto, Teruo Shiomori, Tsuyoshi Udaka, Akiko S ...2002 Volume 105 Issue 11 Pages 1143-1146
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSSpinal epidural abscesses are known to occur associated with retropharyngeal abscess, but such cases are few in the Literature. We treated a 72-year-old woman who reported pain in the back of the neck. Computed tomography (CT) showed a retropharyngeal abscess extending to the upper neck through the carotid space on the left side and an magnetic resonance imaging (MRI) showed a spinal epidural abscess without cervical vertebral osteomyelitis. The abscess was assumed to reach the epidural space along the nerve root through the intervertebral foramen. Since tonsillitis appeared to cause the retropharyngeal abscess, we performed tonsillectomy, and then drained pus through the superior constrictor musckle, effecting a subsequent cure. Staphyloroccus aureus was recovered from both the pus and tonsil, and Streptococcus constellatus, a member of the Streptococcus milleri group, from the tonsil. Based on a review of the literature, clinical courses of spinal epidural abscess associated with retropharyngeal abscess are not always simple, as 4 of the 7 cases found demonstrated poor prognosis. Spinal epidural abscess should be considered a critical complication of retropharyngeal abscess.View full abstractDownload PDF (1785K) -
Effectiveness of Measuring Skeletal Morphology and Soft Tissue DimensionsNaomi Matsumoto2002 Volume 105 Issue 11 Pages 1147-1156
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSWe assessed the surgical indication in obstructive sleep apnea syndrome (OSAS) by comparing cephalometry between a responder group of uvulopalatopharyngoplasty (UPPP) and a nonresponder group.
Cephalometric studies were conducted on 43 patients-42 men and one woman-who required UPPP and underwent both pre-and postoperative polysomnography, and on 50 non-OSAS patients who formed the control group.
Angles and distances were measured based on the Downs-Northwestern method as detailed in the reference cited.
The comparison between the OSAS and control groups indicated anterior displacement of the maxilla, and anteropos-terior discrepancies of the maxilla and the mandible in OSAS. Significant differences were seen in distance measurements for all values other than the distance from the sella to the nasion.
We then compared the 3 groups-responders, nonresponders, and controls. From differences in the Y-axis angle, the Gonial angle, the ANB angle, the distance from the gonion to the menton, and the maximum thickness of the soft palate between responder and control groups, we concluded that the efficacy of UPPP is higher in OSAS patients who have several factors such as micrognathia, anteroposterior discrepancy in the maxillary and mandibular bases, and thick soft palate.
We concluded that routinely conducting that cephalometric analysis would be useful for deciding on adopting UPPP.View full abstractDownload PDF (1288K) -
Yoshinori Matsuwaki, Kiyoshi Yanagi, Tsuneya Nakajima, Hiroshi Moriyam ...2002 Volume 105 Issue 11 Pages 1157-1165
Published: November 20, 2002
Released on J-STAGE: March 19, 2008
JOURNAL FREE ACCESSAllergic fungal sinusitis (AFS) is considered an allergic inflammation against fungus, and has been reported to be refractory, with very high recurrence. In Europe and the United States, AFS incidence is reported from 4% to 7% in patients with chronic sinusitis undergoing endoscopic sinus surgery (ESS). In Japan, however, only 5 patients, including ours have been reported, making AFS very rare in Japan.
We prospectively studied the incidence, pathogenesis and diagnosis of AFS in Japan among 102 patients with chronic sinusitis who underwent ESS. Four cases (3.9%) were diagnosed with AFS based on the criteria of Bent and Kuhn7). This incidence is slightly lower than that reported in Europe and the United States. We report the diagnosis, treatment, and course in 4 AFS patients. Of these, an allergen provocation test against detected fungus was conducted in 2 from whom informed consent was obtained. In the immediate phase, positive reactions were observed. Immunoglobulin E (IgE) antibody-mediated type I allergy may be involved in the pathogenesis of AFS.View full abstractDownload PDF (2889K)
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