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71.
Noriaki MATSUBARA Shigeru MIYACHI Takashi IZUMI Takashi YAMANOUCHI Takumi ASAI Keisuke OTA Toshihiko WAKABAYASHI 《Neurologia medico-chirurgica》2015,55(2):155-162
The authors retrospectively reviewed their cases of infectious intracranial aneurysms and discuss results and trends of current treatment modalities including medical, neurosurgical, and endovascular. Twenty patients (10 males and 10 females; mean age 46 years) with 23 infectious aneurysms were treated by various treatment modalities during a 15-year period. Fifteen cases (75.0%) were caused by infective endocarditis. Eleven aneurysms (47.8%) were ruptured. Two aneurysms (8.7%) presented a mass effect and 7 (30.4%) were unruptured and asymptomatic. The average aneurysm size was 6.5 ± 4.8 mm (range 1–22 mm). The aneurysms were located in proximal cerebral circulation in 7 (30.4%) and distal in 16 (69.6%). Six (26.1%) aneurysms were treated surgically (5: trapping, 1: neck clipping), 10 (43.5%) endovascularly (7: trapping, 2: proximal occlusion, 1: saccular coiling), and the remaining 7 (30.4%) medically. Endovascular treatment was gradually increased with time. Medical and surgical treatments were continuously performed during the study period. Surgery was preferred for the patient with intraparenchymal hematoma or treated by bypass surgery. Three periprocedural minor complications occurred in endovascular treatment. There was one postoperative infarction with permanent deficit developed from surgical treatment. During the follow-up period (mean 28.8 months), none of the aneurysms presented a recurrence or rebleeding. Thirteen patients (65.0%) had favorable clinical outcomes (modified Rankin Scale: 0–2), although four (20.0%) had poor outcomes (modified Rankin Score: 5–6). A multimodal approach for the management of infectious aneurysms achieved satisfactory results. Endovascular intervention is a feasible and efficacious treatment option and surgical intervention is still an indispensable procedure. 相似文献
72.
TATSUYA AIKAWA IZUMI KIMURA MAKI KOJIMA CHISATO UENO KUNIKO MIYAMOTO TOSHIRO TANGO NAOMI TANAKA 《Journal of gastroenterology and hepatology》1996,11(4):341-346
The loss of haemolytic activity in sera during storage at low temperature (the cold activation of complement) was observed in 136 of 184 (74%) patients with chronic liver disease associated with hepatitis C virus (HCV) infection. This was more frequent than observed in the three of 40 (8%) patients with chronic hepatitis B (P < 0.001) or none in 43 normal controls (P < 0.001). Of 103 patients with chronic hepatitis C who had completed a full course of recombinant interferon-α2a therapy (total dose: 516×106U), 40 responded completely and 21 responded partially, as judged by the normalization or decrease of alanine aminotransferase levels 6 months after the completion of therapy; 42 patients did not respond at all. The cold activation of complement persisted in five (13%) complete responders, less often than in 33 (79%) non-responders (P < 0.001). At the completion of interferon therapy, the cold activation of complement persisted in 12 of 54 patients despite the normalization of alanine aminotransferase. Spontaneous exacerbation of hepatitis occurred in seven of 12 (58%) patients with cold activation, which was more frequent than in the four of 42 patients (10%) without it (P < 0.01). The cold activation of complement disappeared along with the loss of HCV-RNA in five of six responders during the 6 month period after the completion of interferon therapy, while both cold activation and HCV-RNA persisted in all eight non-responders. These results indicate that the cold activation of complement may be useful as a marker of HCV viraemia for monitoring the response to interferon in patients with HCV infection. 相似文献
73.
HIROSHI FURUSHIMA M.D. MASAOMI CHINUSHI M.D. KENICHI IIJIMA M.D. AKIKO SANADA M.D DAISUKE IZUMI M.D. YUKIO HOSAKA M.D. YOSHIFUSA AIZAWA M.D. 《Journal of cardiovascular electrophysiology》2010,21(9):991-999
VT Associated with HCM . Objective: To assess the incidence, characteristics, and prognosis of ventricular tachyarrhythmia in hypertrophic cardiomyopathy (HCM). Patients: The study consisted of 66 consecutive patients with HCM who were admitted to Niigata University Hospital between 1992 and 2005. Their clinical characteristics and ECG morphology were investigated according to the type of HCM. Results: The type of HCM was asymmetric hypertrophy (ASH) in 34 patients (51%), obstructive HCM (HOCM) in 9 (14%), apical HCM (ApHCM) in 14 (21%), and midventricular obstruction (MVO) in 9 (14%). The cause of admission was ventricular tachyarrhythmia in 25 patients (38%), unexplained syncope in 11 (17%), and heart failure in 30 (45%). Sustained monomorphic ventricular tachycardia (SMVT) occurred in 19 patients and ventricular fibrillation in 6. In the 19 patients with SMVT, 12 had MVO and 3 of these had previous apHCM. Six of the 19 patients with SMVT had ASH, and 3 had abnormal apical wall motion. In 14 patients, the SMVT appeared to originate from the apical aneurysm based on the morphology of the tachycardia. Ventricular tachyarrhythmia recurred in 14 of the 25 patients (56%), and 4 of the 18 patients with an ICD had electrical storm. ASH with abnormal wall motion of the LV apex or MVO was recognized in the 4 patients with electrical storm; they commonly had abnormal Q waves and ST elevation in leads V4–V6. Conclusion: Ventricular tachyarrhythmia was responsible for 38% of hospitalizations in HCM, and SMVT occurred in patients with MVO and/or with abnormal wall motion of the LV apex. Electrical storm was more common in patients with ST elevation in precordial leads V4–V6. (J Cardiovasc Electrophysiol, Vol. 21, pp. 991‐999, September 2010) 相似文献
74.
DAMBADARJAA DAVAALKHAM TOSHIYUKI OJIMA PAGVAJAV NYMADAWA NAVAANSODOV TSEND TSERENKHUU LKHAGVASUREN STEVEN WIERSMA RITEI UEHARA MAKOTO WATANABE IZUMI OKI YOSIKAZU NAKAMURA 《Pediatrics international》2007,49(3):368-374
BACKGROUND: Because Mongolia is one of the highly endemic countries for hepatitis B virus (HBV) infection in the world, hepatitis B (HB) vaccine was introduced into the National Expanded Program on Immunization in 1991. However, relatively few data are available concerning HBV infection among children born after the start of the program, so far. The aim of the present paper was to describe the seroepidemiology of HBV infection among primary school children using representative national data. METHODS: In 2004, a nationwide school-based cross-sectional serosurvey was carried out throughout Mongolia, covering both urban and rural areas. Serum samples were tested for hepatitis B surface antigen (HBsAg), antibody to hepatitis B core antigen (anti-HBc) and hepatitis B e antigen (HBeAg) as well as for liver enzymes. RESULTS: A total of 1145 children aged 7-12 years were studied, which represents nearly 2% of the second grade population of elementary schools in Mongolia. The overall prevalence of HBsAg and anti-HBc was 5.2% (95% confidence interval [CI]: 3.9-6.5%) and 15.6% (95%CI: 13.5-17.7%), respectively. Among HBsAg-positive children 67.8% (95%CI: 55.9-79.7%) were also positive for HBeAg. The prevalence of chronic HBV infection increased by age and was significantly higher among children from rural areas compared to those from urban areas (7.7% vs 3.0%; P < 0.001). In the multivariate logistic regression analysis, rural residence (odds ratio [OR]: 2.57; 95%CI: 1.45-4.58), male sex (OR: 1.9; 95%CI: 1.08-3.26) and age (OR: 1.5; 95%CI: 1.10-2.05) were independent demographic predictors for chronic HBV infection. CONCLUSIONS: The prevalence of chronic HBV infection has been decreasing in the Mongolian young generation, most likely due to infant HB vaccination. However, significant rural-urban differences in the prevalence of HBV infection were found that demand further investigation to estimate the potential causes. 相似文献
75.
H. SOH H. HOSOKAWA H. MIYAUCHI H. IZUMI Y. ASADA 《The British journal of dermatology》1991,125(1):73-75
A case of localized pemphigoid is described in which the lesions were only on the lower legs. Immunoblotting of the patients' serum reacted with a 240-kDa polypeptide identical to one of the bullous pemphigoid antigens. IgG1 was detected in the lesional skin and IgG1 and IgG4 in the patient's serum. These observations suggest that the immunopathological mechanisms in the blister formation in localized pemphigoid are similar to those found in more widespread bullous pemphigoid. 相似文献
76.
YOSHIHARU MOTOO TOSHINOSUKE WAKATSUKI NOBUYOSHI TANAKA YOSHINOBU HINOUE KENICHI KOBAYASHI NOBU HATTORI OSAMU MATSUI RYOHEI IZUMI YASUNI NAKANUMA GOROKU OHTA 《Journal of gastroenterology and hepatology》1989,4(3):295-298
A 65 year old woman with lupoid hepatitis developed hepatocellular carcinoma which was diagnosed at an early stage. She had no history of blood transfusion and serum hepatitis B virus markers were negative. Prednisolone and 6-mercaptopurine were administered for the treatment of lupoid hepatitis. A hepatocellular carcinoma was detected by the elevation of serum alpha-fetoprotein and imaging studies. A tumour, 1.4 cm in diameter, was located in the lateral segment of the left hepatic lobe. It was resected by hepatic subsegmentectomy. Histological study showed a hepatocellular carcinoma of Edmondson type II against a background of posthepatitic cirrhosis. The patient was in good condition 2.5 years after the operation. 相似文献
77.
TAKESHI KURIHARA MASUMI AKIMOTO KAORI KUROKAWA HISATAKA ISHIGURO AKIKO NIIMI ATUSHI MAEDA MUTSUO SHIGEMOTO KATSUKO YAMASHITA IZUMI YOKOYAMA 《Journal of gastroenterology and hepatology》1992,7(4):405-410
Male Sprague-Dawley rats were fed a 0.1% ethionine-added choline-deficient diet for 8 weeks to induce liver cirrhosis. At the same time 100 mg/kg/day teprenone was administered orally in order to evaluate its effects on the liver and gastric mucosal blood flow. Blood flow increased not only in gastric mucosa but also in liver tissues in the teprenone group. Serum transaminase levels and histopathologic findings of the liver also improved. These findings suggest that teprenone alleviates hepatocellular injuries. This effect may be partly attributable to cytoprotective effects of the catenoid isoprenoid moiety of teprenone on liver cells. 相似文献
78.
GO MAEDA FUMIAKI MASUI RYOHEI YOKOYAMA TADAKAZU SHIMODA YOSHIHIRO MATSUNO KIYOSHI MUKAI KATSUYUKI OHTOMO YASUO BEPPU HISATOSHL FUKUMA 《Pathology international》1998,48(6):475-480
A case of Ewing's sarcoma of the bone, arising in the right radius of a 12-year-old girl, which showed unique histologic features after pre-operative treatment, is reported. The light microscopic features of a biopsy sample were those of a small round cell tumor showing positive immunoreaction with antibodies against the product of the MIC 2 gene (O13), neuron-specific enolase, neurofilament, and synaptophysin, but no morphological differentiation. The patient received combined intensive multi drug chemotherapy and radiation before surgery. Examination of the surgical specimen showed that the tumor was less cellular than that in the biopsy specimen, and was composed mainly of loosely textured large cells mimicking ganglion cells, occasionally forming Homer-Wright rosettes. An lmmunohistochemical study revealed that neural differentiation was enhanced. Immunoreactivity for Leu-7 also became positive. Although the patient underwent postoperative chemotherapy, she died of multiple lung and bone metastases 30 months alter the diagnosis. Autopsy showed that metastatic foci were made up of densely packed small round cells like those seen In the biopsy samples, but associated with prominent Homer-Wright rosettes. To the authors' knowledge, this is the first report of a tumor being replaced almost entirely by ganglion cells after preoperative chemotherapy and radiotherapy. 相似文献
79.
Cytokine production in children outgrowing hen egg allergy 总被引:1,自引:0,他引:1
T. NOMA† IZUMI YOSHIZAWA K. AOKI K. YAMAGUCHI‡ M. BABA‡ 《Clinical and experimental allergy》1996,26(11):1298-1307
Background Approximately 40 to 80% of egg-allergic children outgrow egg allergy after 2 to 5 years. Objective and methods To detail the immunologic mechanisms involved in the development of tolerance to egg proteins, the bahince between interleukin 4 (IL4) and interferon-γ (IFN-γ) synthesis in patients with active atopic dermatitis allergic to hen egg and in those outgrowing hen egg allergy was evaluated. Results A marked increase in IL4 and a decrease in IFN-γ synthesis by peripheral blood lymphocytes following ovalbumin (OVA) specific in vitro stimulation was observed in active atopic dermatitis. In contrast, OVA-induced IL4 synthesis in patients in remission was comparable to that in normal individuals. An intriguing finding was higher production of IFN-γ by lymphocytes from ovalbumin-inscnsitive patients in remission as compared to normal individuals following antigen stimulation. although cell proliferation in OVA-stimulated lymphocytes was reduced in patients during remission. Conclusion OVA antigen may be capable of inducing a population of Thl-type cells to produce cytokines such as IFN-γ, resulting in suppression of Th2-type responses, i.e. IL4 secretion. We speculate that the changes in the balance of relevant antigen-induced cytokine synthesis seen in such patients may be causally associated with the improvement in their clinical status. 相似文献
80.
KENICHI IIJIMA M.D. MASAOMI CHINUSHI M.D. HIROSHI FURUSHIMA M.D. YUKIO HOSAKA M.D. DAISUKE IZUMI M.D. YOSHIFUSA AIZAWA M.D. 《Pacing and clinical electrophysiology : PACE》2009,32(3):406-409
We observed a case of idiopathic ventricular arrhythmias originating from the right ventricular outflow tract (RVOT). The origin of target premature ventricular contraction (PVC) and nonsustained ventricular tachycardia (VT) was within a wide low‐voltage area around the RVOT. During radiofrequency (RF) application to the site of arrhythmia origin, polymorphic VT and ventricular fibrillation were repeatedly triggered by new PVC that had developed near the site of ablation. This electrical storm persisted >30 minutes after cessation of RF current delivery, and was suppressed by additional RF applications to the site of origin of the new PVC. 相似文献