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Volume 49, Issue 6
Displaying 1-9 of 9 articles from this issue
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[in Japanese]2006 Volume 49 Issue 6 Pages 336-337
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSDownload PDF (3228K) -
Hiroyuki Tanaka2006 Volume 49 Issue 6 Pages 338-345
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSIn electromyography, two concentric needle electrodes are placed in the medial lower eyelid and lateral eyelid, upper eyelid, and zygomatic major muscle to detect morbid motor unit potential (MUP) with a decreased threshold generated just before the normal facial nuclear cell (FNC) initiates electrical activity when the patient has no spasm.
A large MUP (such as spike) was recorded in all cases. Complete MUP synchronization was recorded in 8 patients and incomplete synchronization in 2.
In attempts to close the eye, the smallest motor unit (MU) within the FNC of the orbicularis oculi initiates activity and inhibits greater normal FNC around it until the contraction strengthens.
If the facial nerve is compressed by an artery, FNC and interneuron functions dissipate and all uncontrolled normal MUs may respond simultaneously to the lowest stimulus (hyperexcitability), resulting in a large MUP (simultaneous discharge) or a grouped discharge (slightly delayed discharge).
The interneuron grows very long and demonstrates an inhibitory function both near the FNC and distal to the FNC. The interneuron regulates the antagonist muscle, accelerating the action of the orbicularis ocuri muscle when the eye is closed and inhibiting movement of muscles (zygomatic, orbicularis oris, etc.) around the mouth. If the interneuron is damaged, the impulse entering the orbicularis oculi muscle is simultaneously input to the zygomatic muscle in the same division of the facial nucleus and contracted simultaneously (synkinesis)View full abstractDownload PDF (4240K) -
Atsushi Hatano, Naoya Ui, Satoshi Chikazawa, Tsuyoshi Yoshimura, Masah ...2006 Volume 49 Issue 6 Pages 346-353
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSThe results of a clinical study of 23 patients aged over 70 years with oral squamous cell carcinoma as compared with those of 26 patients younger than 70 years old are reported. This elderly group accounted for 47% of the 49 patients with oral squamous cell carcimoma, and consisted of 10 males and 13 females with mean age of 77.7 years. The tumors were most frequently located in the tongue (9 cases), followed by the gingiva (6 cases). Eighty-seven percent of the elderly patients had some underlying medical illness, which in some cases influenced the treatment decision. The primary treatment employed was surgery in 18 patients and radiotherapy in 4 patients ; the remaining one patient received no anti-tumor therapy. The treatment was curative in 74% of the elderly patients. The 5-year cause- specific survival rates in the two groups (elderly and younger) calculated by the Kaplan-Meier method were 50% and 60%, respectively. There were no differences in the treatments employed or the cause-specific survival rates between the two groups. We concluded that curative treatment is important in the elderly and that treatment decisions must be based on oncologic principles, as well as the patient's preferences and clinical status.View full abstractDownload PDF (944K) -
EXPERIENCE AND SHORT TERM RESULTS OF THE USE OF THE HIRES 90K (R) IMPLANTNobuhiro Watanabe, Mariko Takahashi, Naoya Miyamoto, Shingo Murakami, ...2006 Volume 49 Issue 6 Pages 354-359
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSThe HiRes 90K ®Bionic Ear implant is a new device manufactured by Advanced Bionics in the United States ; it has received approval from the Food and Drug Administration (FDA), USA, and has been widely adopted around the world, except in Japan, for several years. Some of the advantageous features of this device are the shape with a soft, flexible and low profile, 16 electrode channels, and a new sound processing program. We implanted the HiRes 90K® device in four postlingual deaf adults (three men and a woman ; age at implantation, 64-74 years); no major postoperative complications were observed in any of the subjects.One patient had a transient floating sensation after the surgery, however, this symptom gradually resolved on its own within a few weeks. Two patients answered the Meaningful auditory integration scale (MAIS), and we estimated the MATS value of CIS (continuous interleaved sampler), PPS (paired pulsatile sampler), HiRes-S and HiRes-P each other. In both, the values of HiRes-S and HiRes-P were higher than those of CIS and PPS. As a result, all the patients prefered the HiRes® sound processing to the conventional processing. Although these are only short-term results, we consider that the HiRes 90K® Bionic Ear implant and sound processing system may exhibit better efficacy and greater safety than the CI implant and conventional sound processing system used in Japan.View full abstractDownload PDF (2112K) -
Shuji Ota, Mamoru Yoshikawa, Kazuhiro Syouji, Yasumasa Tanifuji2006 Volume 49 Issue 6 Pages 360-364
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSDuring intranasal procedures such as nasal intubation, epinephrine is generally used to prevent bleeding. However, few studies have reported on the effective concentrations of vasoconstrictors administered into the nasal cavity. The present study compared the optimal doses of epinephrine and phenylephrine for the prevention of bleeding during intranasal procedures. The subjects were 9 healthy adult volunteers (5 men, 4 women) with a mean age of 26.3 ± 3 years (range, 24-32 years), no past history of nasal or paranasal cavity diseases, and no history of upper respiratory inflammation within a week prior to the study. Two ml of each of 0.02-0.001% epinephrine, 0.5% or 0.1% phenylephrine hydrochloride or physiological saline was soaked in gauze and placed in the right nasal cavity for 3 min. Before and after the drug application, the mucosal color and vasoconstriction was assessed by endoscopy, and an airflow (pressure and flow curves) was measured with an airflow meter.
Endoscopy performed to assess the mucosal color and vasoconstriction revealed that except with physiological saline, mucosal contraction and anemia-like whitening of the mucosa of the inferior nasal concha were seen with all of the drug solutions employed.
As compared to that observed for physiological saline, airflow improved significantly with 0.02% or 0.01% epinephrine, or 0.5% phenylephrine.
The optimal doses of epinephrine and phenylephrine for the prevention of bleeding during nasal intubation thus appear to be 0.01% and 0.5%, respectively.View full abstractDownload PDF (1024K) -
Masatsugu Ohashi, Fumikazu Ota, Minoru Iida, Hirohiko Hesaka, Hiroshi ...2006 Volume 49 Issue 6 Pages 365-371
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSLaryngeal granuloma is an inflammatory mass, which is mainly seen at the vocal processes. We herein report a retrospective review of 46 cases of non-specific laryngeal granuloma encountered by us from 2000 to 2004.
Ten of the 46 cases were classified as intubation granuloma, and the remaining 36 as contact granuloma.Thirty-seven cases were male and 9 were female. The initial treatment used was as follows : (1) Beclometasone dipropionate inhaler (BDI) in 8 cases ; (2) Proton pump inhibitor (PPI) in 8 cases ; (3) BDI and PPI in 18 cases ; (4) Operation in 5 cases ; (5) observation without active treatment in 7 cases. The response to each therapy was as follows : BDI, 87.5% ; PPI, 75% ; BDI and PPI, 55.5% ; recurrence was observed in 40% of the surgically treated cases. In 42.8% of the cases treated by observation alone marked decrease in the size of the granuloma was observed. Treatment was effective in 8 of the 10 cases (80%) with intubation granuloma, and 21 of the 36 cases (58%) with contact granuloma. The significance of BDI was 87.5% and that of PPI was 75%, which is consistent with conventional reports. Recurrence was observed in 40% of the surgically treated cases. Therefore, conservative treatment should be tried first.View full abstractDownload PDF (1304K) -
[in Japanese]2006 Volume 49 Issue 6 Pages 372-380
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSDownload PDF (6595K) -
[in Japanese]2006 Volume 49 Issue 6 Pages 381-384
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSDownload PDF (3209K) -
[in Japanese]2006 Volume 49 Issue 6 Pages 385-388
Published: December 15, 2006
Released on J-STAGE: March 18, 2011
JOURNAL FREE ACCESSDownload PDF (482K)
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