1.Effects of thermal stimulation on the flexion reflex in human subjects.
Kazunori ITOH ; Kentaro MURASE ; Kaoru OKADA ; Kenji KAWAKITA
Journal of the Japan Society of Acupuncture and Moxibustion 1998;48(1):1-9
Effect of thermal stimulation on the flexion reflex as a pain index was examined in healthy human subjects who gave informed consent (n=9, male, mean age 26 ± 8 years old). The evoked electromyogram (EMG) of biceps femoral muscle elicited by transcutaneous electrical stimulation of the sural nerve (5 trains of pulses at 100 Hz delivered at intervals of 13 sec) was successively recorded. The subjective pain sensation elicited by nerve stimulation was simultaneously recorded by the visual analogue scale (VAS) method. Significant correlation coefficients between the amplitudes of evoked EMGs and the stimulus intensity (r=0.791, P< 0.01), and the VAS value (r=0.724, P < 0.01) were observed. Conditioning hot water immersion of the hand (47 °C, 156s) tended to reduce the amplitudes of evoked EMGs, although change was not significant (P=0.678, Kruskal-Wallis test). However, C-statistics, a simple time series analysis method, demonstrated significant trends in several trials. These results suggest that the flexion reflex used in the present study is useful for pain research in human subjects and C-statistics are also useful for analyzing the effect on each individual.
2.Suppressive effects on human flexion reflex induced by different pressure intensities and stimulation sites.
Kazunori ITOH ; Kentaro MURASE ; Kaoru OKADA ; Kenji KAWAKITA
Journal of the Japan Society of Acupuncture and Moxibustion 1998;48(1):10-16
Different intensities of pressure were applied to various tender or non-tender points and the suppressive effects on the flexion reflex were examined in 21 healthy humans (18-26 years), who gave informed consent. The sural nerve was stimulated transcutaneously with trains of 5 pulses at intervals of 13 sec (1.05-1.10x T, T : threshold) and evoked EMGs were recorded from the biceps femoralis muscle. Tender points in the contralateral forearm were detected by careful palpation, and conditioning pressure stimulation was applied at variousintensities by a push-pull gauge for 78 sec. Pressure applied to tender points induced slightly greater suppression of evoked EMGs than that to non-tender points (C statistics : time series analysis), although the difference was not significant (group comparison). Pressure intensities of ten and 50 % of pain tolerance pressure seemed to be adequate for suppression of EMGs in both tender and non-tender points. These results suggest that suppression of flexion reflex by pressure application in humans may be mediated by tactile and pain-related afferent fibers and the importance of adequate stimulus intensity for the induction of analgesic effects.
3.Online Workshop to Improve Telemedicine and Medication Counseling Skills in Diabetes Care
Shota SUZUKI ; Hiroshi OKADA ; Rengyou ; Eriko SUENAGA ; Keika OYAMA ; Kentaro OKAZAKI
An Official Journal of the Japan Primary Care Association 2022;45(2):62-65
In the field of diabetes mellitus, medical practice and medication counseling that elicits self-management by patients are desired. Thus, the improvement of communication skills of healthcare professionals and adopting an interdisciplinary approach to diabetes patients are considered important.In the COVID-19 pandemic era, the adoption of telemedicine and remote medication counseling to actual clinical practice has become an important issue; however, training opportunities for the skills required, especially in the diabetes field, are scarce. Therefore, we held an online training session for healthcare professionals to improve their telemedicine and remote medication counseling skills.
4.Assessment of the Cost Performance of Laparoscopy-Assisted Gastrectomy
Hideki KAWAMURA ; Yukifumi KONDO ; Shigenori HOMMA ; Kuniaki OKADA ; Hiroyuki ISHIZU ; Hiroyuki MASUKO ; Tsunetake HATA ; Koichi TANAKA ; Hideki YAMAGAMI ; Ryoichi YOKOTA ; Hiroshi WATARAI ; Kentaro YOKOTA ; Yoshihiko TSUNODA ; Takehiko ADACHI
Journal of the Japanese Association of Rural Medicine 2008;57(4):619-627
Background: Laparoscopy-assisted gastrectomy requires a lot of disposable products. So we compared the cost between laparoscopy-assisted gastrectomy and open surgery.Patients and methods: For comparison we used five cases each of open distal gastrectomy (ODG), laparoscopy-assisted distal gastrectomy (LADG), open total gastrectomy (OTG) and laparoscopy assisted total gastrectomy (LATG). In this study, we defined the profit of gastrectomy as below and we used the list price for all products. Profit of gastrectomy=Fee for gastrectomy-(Costs of all single use products-Demandable fee for single-use products)Results: Mean profits of ODG and LADG were 278,756.2 yen and 190,292.8 yen. The difference was 88,463.4 yen. Mean profits of OTG and LATG were 395,922.6 yen and 330,653.6 yen. The difference was 65,269 yen. Mean hospital charges, mean length of hospital stay, mean hospital charges per day of ODG, LADG, OTG and LATG were 1,390,464 yen, 21.4 days, 65,140.0 yen and 1,484,254.0 yen, 18.8 days, 80,805.4 yen and 1,956,664.0 yen, 24.4 days, 82,397.1 yen and 1,686,936.0 yen, 18.4 days, 91,894.8 yen, respectively.Conclusion: The turnover of laparoscopic gastrectomy was higher than open gastrectomy, but, the profit was lower because of high costs of disposable products. Hospital charges were not higher but the charge per day was higher because of a shorter hospital stay.
Gastrectomy
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Laparoscopy
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Hospitals
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Mean
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Financial cost
5.A Case of Cyst Formation 20 Years After Gamma Knife Radiosurgery for Cerebral Arteriovenous Malformation
Hayato YOKOYAMA ; Takeshi OKADA ; Otone ENDO ; Kentaro FUJII ; Kai TAKAYANAGI ; Taku HIRAMATSU
Journal of the Japanese Association of Rural Medicine 2020;69(1):79-85
A 52-year-old woman who had two episodes of cerebral hemorrhage due to cerebral arteriovenous malformation (AVM) had been treated with gamma knife radiosurgery twice. Complete obliteration of the AVM was confirmed after treatment and she was making steady progress. Twenty years after gamma knife radiosurgery, computed tomography showed cyst formation. The cyst grew larger with ensuing neurological signs and symptoms, so we performed surgery. Thereafter, it was possible to make a pathological assessment. Delayed cyst formation after gamma knife radiosurgery for AVM is known to be one of the late adverse effects of radiation but little is known beyond 10 years postoperatively. We report here on a case of cyst formation 20 years after gamma knife radiosurgery for AVM.
6.Two Cases of Chronic Cough Successfully Treated with Kumibinroto
Tomoe FUKUNAGA ; Daizo KISHINO ; Seiichiro USUKI ; Naoki OKADA ; Kentaro IWATA ; Takashi NISHIMOTO
Kampo Medicine 2020;71(1):77-81
Cough-variant asthma is the most common cause of chronic cough. It may progress to classic asthma and therefore requires adequate treatment intervention. We experienced two cases of cough-variant asthma that was refractory to standard drug therapy but improved after additional administration of kumibinroto. In Case 1, the patient was a 46-year-old woman receiving hormone therapy after breast cancer surgery. She developed cough-variant asthma 5 years ago, and though she has received drug therapy, the symptoms aggravated. Cough continued to appear at night without improvement of asthma symptoms. However, the symptoms improved with subsequent administration of kumibinroto. In Case 2, the patient was a 47-year-old woman who developed cough-variant asthma after childbirth, which repeatedly worsened and improved. The cough-variant asthma aggravated after change of workplace and did not improve with drug therapy. However, asthma symptoms improved with oral administration of kumibinroto and hangekobokuto, and subsequent administration of kumibinroto alone. In both patients, the asthma was seasonal. These cases suggest that kumibinroto administration may contribute to the improvement of cough-variant asthma.
7.Interspinous Ligament Lidocaine and Steroid Injections for the Management of Baastrup's Disease: A Case Series.
Kentaro OKADA ; Seiji OHTORI ; Gen INOUE ; Sumihisa ORITA ; Yawara EGUCHI ; Junichi NAKAMURA ; Yasuchika AOKI ; Tetsuhiro ISHIKAWA ; Masayuki MIYAGI ; Hiroto KAMODA ; Miyako SUZUKI ; Gou KUBOTA ; Yoshihiro SAKUMA ; Yasuhiro OIKAWA ; Kazuhide INAGE ; Takeshi SAINOH ; Tomoaki TOYONE ; Kazuyo YAMAUCHI ; Kazuhisa TAKAHASHI
Asian Spine Journal 2014;8(3):260-266
STUDY DESIGN: Prospective study. PURPOSE: To examine the long-term effects of interspinous ligament injections of local anesthetics and steroids for the treatment of Baastrup's diseases. OVERVIEW OF LITERATURE: Baastrup's disease is associated with axial low back pains. Baastrup's disease has been more recently described as the "kissing spinous processes" disease. Several authors have reported methods for the diagnosis and treatment of the disease. However, there has been only one report of patients receiving interspinous ligament injections of agents for the treatment of Baastrup's disease. METHODS: Seventeen patients showed severe low back pains between spinous processes at L3-L4 or L4-L5. X-ray imaging, computed tomography, and magnetic resonance imaging revealed kissing spinous processes, consolidation of spinous process, or inflammation of an interspinous ligament. Pain reliefs after lidocaine and dexamethasone administration into interspinous ligament as therapy for low back pains were being examined and followed up. RESULTS: Low back pain scores significantly improved immediately after injection of the agents into interspinous ligaments. At final follow-up (1.4 year), low back pain scores significantly improved as compared with before the treatment. CONCLUSIONS: Findings from the current study indicate that lidocaine and dexamethasone administration into interspinous ligament in patients diagnosed with Baastrup's disease is effective for managing the pain associated with this disease.
Anesthetics, Local
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Dexamethasone
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Diagnosis
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Follow-Up Studies
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Humans
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Inflammation
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Lidocaine*
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Ligaments*
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Low Back Pain
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Magnetic Resonance Imaging
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Prospective Studies
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Steroids
8.A Case of Unstable Angina Pectoris With Asymptomatic Internal Carotid Artery and Middle Cerebral Artery Occlusion With Impaired Cerebral Perfusion Reserve Treated With Simultaneous Superficial Temporal Artery-Middle Cerebral Artery Anastomosis and Coronary Artery Bypass Grafting
Kai TAKAYANAGI ; Takeshi OKADA ; Otone ENDO ; Kentaro FUJII ; Tomotaka ISHIZAKI ; Taku HIRAMATSU ; Takenori YAMAZAKI ; Hajime ARIMA
Journal of the Japanese Association of Rural Medicine 2021;70(1):69-75
A 68-year-old woman had unstable angina pectoris with asymptomatic right internal carotid artery and right middle cerebral artery occlusion with impaired cerebral perfusion reserve. The cardiology, cardiovascular surgery, anesthesiology, and neurosurgery departments discussed the treatment plan. We simultaneously performed superficial temporal artery-middle cerebral artery anastomosis and coronary artery bypass grafting to reduce the likelihood of perioperative ischemic stroke. Fortunately, neither cerebral ischemia nor myocardial ischemia occurred. Simultaneous superficial temporal artery-middle cerebral artery anastomosis and coronary artery bypass grafting can be a therapeutic option for patients with unstable angina and impaired cerebral perfusion reserve. However, the risk of bleeding associated with anticoagulation during coronary artery bypass grafting cannot be ignored.