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VLBI activities in Japan and East Asia
Hideyuki Kobayashi 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
We review the astronomy activity using VLBI technique in Japan and East Asia region. VLBI is the most accurate observation tool for astronomy. Then it has revealed many interesting phenomea in the univerve. And Japan, China and Korea have good activities in this field. These are supported the high techonoloy leve of each countries. We also show the impact of the technology of communication, information science and computing.
Hypertension Is Related to Positive Global Sagittal Alignment: A Cross-Sectional Cohort Study
Hideyuki Arima,Daisuke Togawa,Tomohiko Hasegawa,Yu Yamato,Go Yoshida,Sho Kobayashi,Tatsuya Yasuda,Tomohiro Banno,Shin Oe,Yuki Mihara,Hiroki Ushirozako,Hironobu Hoshino,Yukihiro Matsuyama 대한척추외과학회 2019 Asian Spine Journal Vol.13 No.6
Study Design: Cross-sectional cohort study. Purpose: This study aimed to investigate the relationship between hypertension and spino-pelvic sagittal alignment in middle-aged and elderly individuals. Overview of Literature: Positive global sagittal alignment is associated with poor health-related quality of life. Hypertension is associated with tissue microcirculation disorders of the skeletal muscle. We hypothesized that hypertension may be involved in positive global sagittal alignment. Methods: In this institutional review board-approved study, 655 participants (262 men and 393 women; mean age, 72.9 years; range, 50–92 years) who underwent musculoskeletal screening in Toei town, Aichi, Japan were included. Whole spine and pelvic radiographs were taken, and radiographic parameters (thoracic kyphosis, lumbar lordosis, pelvic tilt, sacral slope, pelvic incidence, and sagittal vertical axis [SVA]) were measured using an image-analysis software. Hypertension was assessed using the standard criteria. The study participants were divided into three subgroups as per age (50–64 years, 65–74 years, and ≥75 years). We examined the differences in the radiographic parameters of those with and without hypertension in each age subgroup. Results: In each age subgroup, there was no significant difference in the age and sex of those with and without hypertension. SVA was significantly shifted forward in the hypertension group than in the non-hypertension group in those aged 50–64 years old (32.4 mm vs. 16.0 mm, p=0.018) and in those aged 65–74 years old (42.7 mm vs. 30.6 mm, p=0.012). There was no significant difference between the hypertension and non-hypertension groups in terms of the alignment of the lumbar and thoracic spine in all the subgroups. In multivariate analysis, hypertension was a significant independent factor of forward-shifted SVA (standardized beta 0.093, p=0.015). Conclusions: This study showed that hypertension was associated with forward-shifted global sagittal alignment.
Endoscopic Ultrasound-Guided Gastroenterostomy for Afferent Loop Syndrome
Hideyuki Shiomi,Arata Sakai,Ryota Nakano,Shogo Ota,Takashi Kobayashi,Atsuhiro Masuda,Hiroko Iijima 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.6
Afferent loop syndrome (ALS) is a mechanical obstruction of the afferent limbs after gastrectomy with gastrojejunostomyreconstruction. Patients with cancer recurrence require immediate and less invasive treatment because of their poor condition. Percutaneous transhepatic/transluminal drainage (PTD) and endoscopic enteral stenting offer reasonable palliative treatment formalignant ALS but are not fully satisfactory in terms of patient quality of life (QoL) and stent patency. Endoscopic ultrasound-guidedgastroenterostomy (EUS-GE) using a lumen-apposing metal stent may address these shortcomings. Clinical data from 11 reportsshowed that all patients who had undergone EUS-GE had positive technical and clinical outcomes. The adverse event rate was11.4%, including only mild or moderate abdominal pain, with no severe adverse events. Indirect comparative studies indicated thatpatients who had undergone EUS-GE had a significantly superior QoL, a higher clinical success rate, and a lower reintervention ratethan those who had undergone PTD or endoscopic enteral stenting. Although the evidence is limited, EUS-GE may be consideredas a first-line treatment for malignant ALS because it has better clinical outcomes than other less invasive treatments, such as PTD orendoscopic enteral stenting. Further prospective randomized control trials are necessary to establish EUS-GE as a standard treatmentfor ALS.
Arata Sakai,Hideyuki Shiomi,Takao Iemoto,Ryota Nakano,Takuya Ikegawa,Takashi Kobayashi,Atsuhiro Masuda,Yuzo Kodama 대한소화기내시경학회 2020 Clinical Endoscopy Vol.53 No.4
In this study, we assessed a series of our cases in which endoscopic self-expandable metal stents (SEMSs) were used to treat malignantafferent loop obstruction (ALO) that arose after pancreaticoduodenectomy (PD). We retrospectively examined the records of 7 patientswho underwent endoscopic SEMS placement for malignant ALO following PD. Clinical success was achieved in all cases. The medianprocedure time was 30 min (range, 15–50 min). There were no cases of stent occlusion, and no procedure-related adverse events wereencountered. All patients died of their primary disease, and the median overall survival period was 155 days (range, 96–374 days). Are-intervention involving endoscopic ultrasound-guided hepaticogastrostomy combined with antegrade stenting was performed forobstructive jaundice and acute cholangitis in 1 case. In conclusion, endoscopic SEMS placement may be an effective and safe treatmentfor malignant ALO that arises after PD.
ABO Blood Type and Risk of Peyronie’s Disease in Japanese Males
Mitsui Yozo,Kobayashi Hideyuki,Yamabe Fumito,Nakajima Koichi,Nagao Koichi 대한남성과학회 2022 The World Journal of Men's Health Vol.40 No.3
Purpose: Although multiple mechanisms associated with Peyronie’s disease (PD) have been proposed, details regarding etiologic factors, especially genetic, remain unclear. We examined the relationship of the ABO blood type system, known as a genetic factor associated with susceptibility to a number of diseases, with PD in Japanese males. Materials and Methods: We compared 202 Japanese PD patients treated with surgery at our hospital between March 2004 and December 2019 with 846 randomly selected non-PD male patients who underwent urological surgery during the same period regarding distribution of ABO blood types. In addition, we assessed the risk of PD according to blood type group among all study participants using odds ratio (OR) and 95% confidence interval (CI) calculations. Results: The distribution of individual blood types in the control group was nearly the same as that in the general Japanese population. In contrast, O, A, B, and AB blood types were noted in 37.6%, 36.1%, 14.9% and 11.4%, respectively, of the PD patients, which was significantly different from the control group, where blood type O was found in 29.1% and B in 23.2% (p<0.05). Our results showed that as compared with patients with blood group B, those with another blood type were more likely to develop PD, among which type O had a significantly increased OR of 2.018 (CI, 1.271–3.205). Conclusions: These are the first reported results showing that ABO blood type may be associated with risk of PD, though further investigations are needed.