1.Alcohol Dependence in Women
Yoshio Kamioka ; Shinichi Nishimura ; Nobuo Kawahara ; Masayuki Kano
Journal of the Japanese Association of Rural Medicine 1983;32(1):47-51
This report presents five serial cases of female alcohol dependence treated at neuropsychiatric division of the Saku Central Hospital for the past two years, with special references on descriptive and clinical features.
1) In rural communities, alcohol dependence in women appears to be detected and treated in their earlier stage than men. This may be ascribable to a fewer number of female drinker and closer interpersonal relationship as compared with large cities.
2) All five cases in this clinical study were secondary alcoholism which had an affective disorder antedating the onset of alcoholism. Of them, three (64, 63 and 49 years of age) were with depression and two (35 and 33 years of age) were with psychoneurosis.
3) Suicide attempt was made by a 35-year-old woman, who had experienced loss of a close interpersonal relationship and had been conflicting with her husband. This may suggest that female alcoholics are more likely to commit suicide.
4) No significant relationship was found between drinking pattern and menstrual cycles in two cases with menstruation.
5) Although we have never experienced fetal alcohol syndrome up to present at our hospital, there are several foreign literatures on that subject. It must be required to let female alcoholics aware of this syndrome.
2.A Surgical Case of Papillary Fibroelastoma Located in the Tricuspid Valve Chordae
Ko Nakahara ; Hirohisa Goto ; Megumi Fuke ; Masayuki Sakaguchi ; Kazunori Nishimura
Japanese Journal of Cardiovascular Surgery 2015;44(6):338-341
Papillary fibroelastoma (PFE) is the second most common type of benign cardiac tumor after myxoma, and is most commonly found in the left side of the heart. In this study, we report a case of PFE located in the tricuspid valve chordae. The patient was a 65-year-old woman in whom a heart murmur was detected during a routine medical examination. A follow-up examination identified a cardiac tumor, and she was subsequently referred to our medical department. Echocardiography and contrast-enhanced computed tomography indicated a mobile mass of approximately 1 cm in the right ventricle, and she was determined to be a candidate for surgery. After cardiopulmonary bypass, we instigated cardioplegic arrest, made an incision in the right atrium, and observed the right ventricle through the tricuspid valve. We observed a yellowish sea-anemone-like mass approximately 9 mm from the chordae of the anterior leaflet of the tricuspid valve. Thus, the mass was resected with the chordae and tricuspid annuloplasty. Postoperative progress was satisfactory, and the subject was discharged on the 19th day of hospitalization. Histopathological examination indicated a mixture of thick fibrous and adipose tissues, which led to the diagnosis of PFE. PFE is a relatively rare disease that comprises 8% of primary cardiac tumors. IA often occurs in the left heart and can cause cerebral infarction, myocardial infarction, and other symptoms of embolism. However, because small masses and those that occur in the right heart are not accompanied by clinical symptoms, such cases are often discovered during routine echocardiography. The present study reports a case of PFE that occurred in the tricuspid valve chordae that was diagnosed via echocardiography.
3.A Case of Descending Aortic Rupture due to Blunt Chest Trauma.
Masayuki Sakaguchi ; Naobumi Fujii ; Kazunori Nishimura ; Nobuyuki Yanagiya
Japanese Journal of Cardiovascular Surgery 2001;30(2):89-91
We report a case of rupture of the thoracic descending aorta due to blunt chest trauma. An 18-year-old man was transferred to our hospital after a car accident. He was in a state of shock. The admission chest X-ray film demonstrated mediastinal widening and blurring of the aortic arch. Chest and abdominal helical CT scan showed left hemothorax, pseudoaneurysm, and hematoma of the cervix, mediastinum, and retroperitoneal space. We diagnosed rupture of the thoracic descending aorta without other injuries. An emergency operation was performed under partial cardiopulmonary bypass with systemic heparinization. The descending aorta had completely lost its continuity. Graft replacement was performed with a collagen-sealed woven Dacron graft. The postoperative course was uneventful. We suggest that high awareness and a systematic approach are needed to diagnose traumatic aortic rupture, and that enhanced helical CT scanning is helpful for diagnosis and management strategy.
4.A Case of Ruptured Abdominal Aortic Aneurysm Associated with Postoperative Paraplegia.
Masayuki Sakaguchi ; Naobumi Fujii ; Kazunori Nishimura ; Nobuyuki Yanagiya
Japanese Journal of Cardiovascular Surgery 2001;30(3):146-148
A 72-year-old woman complaining of lumbago was transferred to our hospital in a state of shock. An admission abdominal CT scan showed infrarenal aortic aneurysm reaching 8cm in maximal diameter and hematoma of the retroperitoneal space. A clinical diagnosis of ruptured abdominal aortic aneurysm was rapidly established. An emergency operation was performed under general anesthesia. Laparotomy disclosed an infrarenal abdominal aortic aneurysm and hematoma. The aorta was clamped just below the bilateral renal arteries. Straight graft replacement was performed. There was enough heparinization during the surgical procedure. Postoperative findings involved paraplegia and hypoesthesia from dermatome Th 10 with associated urinary and fecal incontinence. The patient was discharged from our hospital. Spinal cord ischemia is a rare and unpredictable complication in surgery of infrarenal abdominal aortic aneurysms. Presence of intra- and postoperative episodes of hypotension and the duration of the crossclamping seem to have been the most important factors for spinal cord ischemia in this case.
5.A case of occupational overuse syndrome improved, according to M-Test, with acupuncture
Tatsuro HONDA ; Masayuki KANEHARA ; Rina SAKAI ; Wenping Zhang ; Ko NISHIMURA ; Shigeru URATA
Journal of the Japan Society of Acupuncture and Moxibustion 2014;64(2):104-112
[Purpose]We report a case concerning 5 months of left elbow and knee joint pain thought to be caused by repetitive use at work. Symptoms were improved successfully (checked by M-test) by a single acupuncture treatment.
[Case]We used acupuncture to treat a 50-year-old woman who visited our Acupuncture and Moxibustion Centerwith complaints of increasing elbow and knee joint pain in the left side. Since 4 months ago, her job involved frequent stair-climbing while carrying an 18-liter can of cooking oil. The soft tissues seemed to be damaged and caused pain due to the repeated lifting of heavy cans at work. Acu-points were decided by M-Test to check limitations of movement, which identified damaged regions and provided feedback for optimal treatment. According to the specific operations of the patient's work, we identified limited movements of left-elbow joint flexion-extension, left-shoulder joint extension, and left hip joint inner rotation and external gyration. These were regarded as target motions for the treatment. Her Visual Analog Scale (VAS) scores before treatment were 90 mm in the left elbow and 80 mm in the left knee. Despite only a single round of acupuncture treatment, the respective values dropped to 18 mm and 15 mm.
[Consideration and Conclusion]The limited movement identified by M-Test could expose the affected areas and help in treating the appropriate acu-points. Therefore, acupuncture using M-Test might improve painful motions of the body.
6.Effect of Orengedokuto on Hyperthermia after mild Hypothermia Therapy
Toshihito TSUBO ; Masayuki NISHIMURA ; Eiji HASHIBA ; Hirobumi OKAWA ; Hironori ISHIHARA ; Kazuyoshi HIROTA
Kampo Medicine 2013;64(4):212-215
We studied the effects of orengedokuto on central hyperthermia after mild hypothermia therapy for cardiac arrest. The subjects in this study were 7 patients who showed central hyperthermia (>38.3 °C) after mild hypothermia therapy. Orengedokuto 7.5-15 g/day was administered and central temperature was monitored. Maximum change in central temperature was 1.55 ± 0.71 °C(from 39.1 ± 0.7 °C to 37.6 ± 0.7 °C) (p < 0.05). Mean change was 0.35 ± 0.77 °C, (from 37.7 ± 0.6 °C to 37.5 ± 0.7 °C). Thus we conclude that orengedokuto is a drug with applications in the treatment of central hyperthermia after mild hypothermia therapy.
7.Evaluation of Predictive Accuracy between Two Types of Vancomycin TDM Analysis Software
Shungo Imai ; Takehiro Yamada ; Ayako Nishimura ; Hiromitsu Oki ; Masayuki Kumai ; Takenori Miyamoto ; Kumiko Kasashi ; Ken Iseki
Japanese Journal of Drug Informatics 2015;16(4):169-178
Objective: To attain optimal blood concentration rapidly, it is needed to perform initial dose setting appropriately when vancomycin (VCM) used. In order to design initial dose settings of VCM more currently, we compared the predictive performance of two types of VCM therapeutic drug monitoring (TDM) analysis software retrospectively.
Method: We utilized two TDM analysis software, SHIONOGI-VCM-TDM ver.2009 (VCM-TDM) and “Vancomycin MEEK TDM analysis software Ver. 2.0” (MEEK), based on patient’s background. 112 patients who received VCM and performed TDM were analyzed during the period from October 2011 through September 2012 and compared the actual trough level with the predictive trough level. The predictive performance was evaluated by calculating ME (mean prediction error), MAE (mean absolute prediction error), and RMSE (root mean squared error). Age, gender, and a renal function were evaluated as patient’s background.
Results: VCM-TDM gave good predictive performance for patients overall. When classified patient’s background complexly (sex, age, and renal function), as for male patients, VCM-TDM showed good predictive performance except for the group over 65 years old and CCr over 85 mL/min. For female patients, the difference of predictive performance was not accepted by all groups.
Conclusion: These results suggest, for male patients, we should use VCM-TDM for initial dose settings except for the group over 65 years old and over CCr 85 mL/min. For the other patients, we consider that both of software can be used. These new findings seem to contribute to proper dosage settings of VCM.
8.Efficacy of peficitinib in two patients with rheumatoid arthritis on maintenance hemodialysis
Akito NISHIMURA ; Masayuki TATEIWA ; Shuuitirou TAJIMA ; Takuya TADA
Journal of Rural Medicine 2022;17(3):193-195
Objective: Treatment options for patients with rheumatoid arthritis on maintenance hemodialysis with an inadequate response to biologic agents have not been reported. In this report, we describe two patients who achieved remission after treatment with peficitinib.Methods: Two 69- and 85-year-old patients with rheumatoid arthritis on maintenance hemodialysis were previously treated with biologics and started on peficitinib 100 mg/day after the secondary failure of biologics.Discussion: In the two cases presented here, rheumatoid arthritis was almost in remission and there were no adverse events, although the patients were switched to peficitinib after secondary failure of the biologic agents. Among Janus kinase inhibitors, peficitinib has the lowest renal excretion; therefore, its administration in patients on dialysis is not contraindicated according to the package insert in Japan. The use of biologic agents in patients on hemodialysis has been reported to be associated with a high incidence of infections; therefore, care should be taken to avoid infections when administering Janus kinase inhibitors.Conclusion: Janus kinase inhibitors with low renal excretion, such as peficitinib, may be effective in patients with rheumatoid arthritis on maintenance hemodialysis who have an inadequate response to biologic agents.
9.Lowest observed adverse effect level of pulmonary pathological alterations due to nitrous acid exposure in guinea pigs.
Masayuki OHYAMA ; Hiroshi NISHIMURA ; Kenichi AZUMA ; Chika MINEJIMA ; Norimichi TAKENAKA ; Shuichi ADACHI
Environmental Health and Preventive Medicine 2020;25(1):56-56
BACKGROUND:
We previously demonstrated that continuous exposure to nitrous acid gas (HONO) for 4 weeks, at a concentration of 3.6 parts per million (ppm), induced pulmonary emphysema-like alterations in guinea pigs. In addition, we found that HONO affected asthma symptoms, based on the measurement of respiratory function in rats exposed to 5.8 ppm HONO. This study aimed to investigate the dose-response effects of HONO exposure on the histopathological alterations in the respiratory tract of guinea pigs to determine the lowest observed adverse effect level (LOAEL) of HONO.
METHODS:
We continuously exposed male Hartley guinea pigs (n = 5) to four different concentrations of HONO (0.0, 0.1, 0.4, and 1.7 ppm) for 4 weeks (24 h/day). We performed histopathological analysis by observing lung tissue samples. We examined samples from three guinea pigs in each group under a light microscope and measured the alveolar mean linear intercept (Lm) and the thickness of the bronchial smooth muscle layer. We further examined samples from two guinea pigs in each group under a scanning electron microscope (SEM) and a transmission electron microscope (TEM).
RESULTS:
We observed the following dose-dependent changes: pulmonary emphysema-like alterations in the centriacinar regions of alveolar ducts, significant increase in Lm in the 1.7 ppm HONO-exposure group, tendency for hyperplasia and pseudostratification of bronchial epithelial cells, and extension of the bronchial epithelial cells and smooth muscle cells in the alveolar duct regions.
CONCLUSIONS
These histopathological findings suggest that the LOAEL of HONO is < 0.1 ppm.
Alveolar Epithelial Cells
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drug effects
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Animals
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Bronchi
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drug effects
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Dose-Response Relationship, Drug
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Emphysema
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chemically induced
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Epithelial Cells
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drug effects
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Guinea Pigs
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Hyperplasia
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chemically induced
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Inhalation Exposure
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adverse effects
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Lung
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drug effects
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pathology
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ultrastructure
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Male
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Microscopy, Electron, Scanning
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Microscopy, Electron, Transmission
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Myocytes, Smooth Muscle
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drug effects
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Nitrous Acid
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toxicity