A Competitive Environment for Linking the TSR & TKR

TSUJI, Hisako 한국해운물류학회 2005 해운물류연구 Vol.44 No.-

Mechanical Thrombectomy for Large Vessel Occlusion via the Transbrachial Approach: Case Series

Tsuji Yuichiro,Miki Takanori,Kakita Hiroto,Sato Kimitoshi,Yoshida Takashi,Shimizu Fuminori 대한신경중재치료의학회 2020 Neurointervention Vol.15 No.2

Mechanical thrombectomy has become a standard treatment for acute ischemic stroke with large vessel occlusion. In aged patients, it is difficult to guide the catheter via the transfemoral approach due to vessel tortuosity and aortic elongation. We report our preliminary clinical experience using the transbrachial approach. Among the 119 patients who underwent thrombectomy from April 2018 to December 2019, a total of 5 patients were treated via the transbrachial approach. Clinical outcomes were retrospectively analyzed. Successful reperfusion was achieved in 4 out of 5 cases. There was 1 death due to symptomatic intracranial hemorrhage. One patient had a good outcome at discharge. There were no access-site complications associated with any of these cases. Transbrachial access for mechanical thrombectomy is feasible and can provide an alternative to the transfemoral approach.

Poor Prognostic Factors for Surgical Treatment of Spinal Intramedullary Ependymoma (World Health Organization Grade II)

Tsuji Osahiko,Nagoshi Narihito,Ishii Ryota,Nori Satoshi,Suzuki Satoshi,Okada Eijiro,Fujita Nobuyuki,Yagi Mitsuru,Matsumoto Morio,Nakamura Masaya,Watanabe Kota 대한척추외과학회 2020 Asian Spine Journal Vol.14 No.6

Study Design: Single-center retrospective study.Purpose: We aimed to explore the postoperative prognostic factors for spinal intramedullary ependymoma.Overview of Literature: Ependymoma (World Health Organization grade II) is the most frequent intramedullary spinal tumor and is treated by total resection. However, postoperative deterioration of motor function occasionally occurs.Methods: Eighty patients who underwent surgical resection at Keio University and Fujita Health University in Tokyo, Japan between 2003 and 2015 with more than 2 years of follow-up were enrolled. A good surgical result was defined as an improvement in the modified McCormick Scale score by one grade or more or having the same clinical grade as was observed preoperatively. Meanwhile, a poor result was defined as a reduction in the McCormick Scale score of one grade or more or remaining in grade IV or V at final follow-up. Univariate and multivariate logistic regression analyses of the following factors were performed in the two groups: sex, age, preoperative Visual Analog Scale (VAS), tumor location, the extent of tumor resection, hemosiderin caps, cavity length, and tumor length on magnetic resonance imaging.Results: At final follow-up, 15 patients were included in the poor results group and 65 in the good results group. In the univariate analysis, the factors related to poor results were as follows: higher age, preoperative McCormick Scale score severity, higher preoperative VAS, thoracic location, hemosiderin capped, and non-gross total resection (GTR). A multiple logistic regression analysis was conducted and showed that age, worse preoperative McCormick Scale score, and non-GTR were significant factors for poor prognosis.Conclusions: The independent risk factors for motor deterioration after ependymoma resection were age, worse preoperative McCormick Scale score, and non-GTR. Early surgery for patients with even mild neurological disorders could facilitate functional outcomes. These results may contribute to determining the optimal timing of surgery for spinal intramedullary ependymoma.

Commodity Characteristics Preferred by Young People in Japan

Tsuji, Yukie 한국의류산업학회 2001 한국의류산업학회지 Vol.3 No.5

This paper turns its attention to the commodities that enjoy a large sale among the university students in Japan. The aim of the study is to clarify by what criteria the university students purchase them. In order to investigate by what criteria they select goods and what constitutes the factors of selection, the method of factor analysis was applied. The method produced three factors as the criteria for selection: The 1. factor as "daily-non-daily", the 2. factor as "popular-regular" and 3. factor as "searching-dependent". This leads to the conclustion that the commodities have a good sale because of their characteristics of being suitable to daily life, being popular and being objects of searching activities among the young people in Japan.

Mechanical Thrombectomy for Acute Ischemic Stroke due to Thrombus in the Pulmonary Vein Stump after Left Pulmonary Lobectomy: A Case Series

Tsuji Yuichiro,Yagi Ryokichi,Hiramatsu Ryo,Wanibuchi Masahiko 대한신경중재치료의학회 2022 Neurointervention Vol.17 No.3

Cerebral embolic stroke caused by a thrombus in the pulmonary vein stump after left pulmonary lobectomy is a serious complication. We retrospectively analyzed four patients who underwent mechanical thrombectomy for large-vessel occlusion after left pulmonary lobectomy between January 2014 and March 2022. Two cases occurred after left upper lobectomy and the others occurred after left lower lobectomy. All patients presented with cerebral embolic stroke from the day after surgery to the 9th postoperative day, and successful reperfusion was achieved in all cases. Two patients had good outcomes at 90 days. Thrombus in the pulmonary vein stump is the probable cause of cerebral embolism, and mechanical thrombectomy is effective. Further studies are required to establish preventive measures and perioperative management strategies.

A Mechanical Sensorless Vector-Controlled Induction Motor System with Parameter Identification by the Aid of Image Processor

Tsuji Mineo,Chen Shuo,Motoo Tatsunori,Kawabe Yuki,Hamasaki Shin-ichi The Korean Institute of Electrical Engineers 2005 KIEE International Transactions on Electrical Mach Vol.b5 No.4

This paper presents a mechanical sensorless vector-controlled system with parameter identification by the aid of image processor. Based on the flux observer and the model reference adaptive system method, the proposed sensorless system includes rotor speed estimation and stator resistance identification using flux errors. Since the mathematical model of this system is constructed in a synchronously rotating reference frame, a linear model is easily derived for analyzing the system stability, including motor operating state and parameter variations. Because it is difficult to identify rotor resistance simultaneously while estimating rotor speed, a low-accuracy image processor is used to measure the mechanical axis position for calculating the rotor speed at a steady-state operation. The rotor resistance is identified by the error between the estimated speed using the estimated flux and the calculated speed using the image processor. Finally, the validity of this proposed system has been proven through experimentation.

Competitive Advantages and Disadvantages of Trans-Siberian Railway Route -Case study of Korea and Japan-

Tsuji, Hisako The Korean Society for Railway 2013 International Journal of Railway Vol.6 No.4

TSR (Trans-Siberian Railway) route is losing price competitiveness versus Deep Sea route in the transportation from East Asia to Europe, including Moscow. To further attracting the containers to the TSR route, it will be necessary (1) to keep competitive through rate, linked to fluctuating Deep Sea rate; (2) to strengthen speed advantage; (3) to enforce seamless transportation system, including simplified customs clearance procedures. In transportation to Central Asia from East Asia (Korea and Japan), TSR is competitive versus TCR (Trans-China Railway), depending on destinations. Korea has been the leader in revitalizing the TSR route since 2000. Key contributors were affluent export containers to Russia and Central Asia, port of Busan, efficient maritime transport network to Far East Russia, and Korean forwarders' persistent efforts for activating the market. Korea and Japan have a possibility of cooperation in using the TSR route efficiently, such as organizing a joint block train to a same destination.

식이섬유의 주요기능

Tsuji,Keisuke 한국식품위생안전성학회 1992 한국식품위생안전성학회지 Vol.7 No.4

Non-absorbable substances in foods, for instance dietary fiber had been previously known as a non-nutritive part of foods. Recently, such a category has been gradually changed to as one of nutrients. As a main reason, dietary fibers includes many poly- or oligo-saccharides, which are resistant to alimentary hydrolyzing enzyme. However, parts of them are fermented by intestinal microorganism to produce short chain fatty acids and so on. They are absorbed and utilized by human being. Now, it may be naturally accepted that dietary fiber is a kind of nutrients. letary fiber exerts many useful functions on body. They are classified into three large functions, physicochemical function, physiological function and biological function. The last function of dietary fiber will be presented in the symphosium. Ietary fiber has several kinds of nutritional properties. One is energy source. Short chain fatty adds (SCFA) are wddized and produced energy in body. Dietary fiber has not high energy, but not zero kilocalories. Another one is to be a constitutional component of higher animals' tissue. Last but most important one is physiological functions of dietary fiber.

Effectiveness of Duloxetine for Postsurgical Chronic Neuropathic Disorders after Spine and Spinal Cord Surgery

Tsuji Osahiio,Kosugi Shizuko,Suzuki Satoshi,Nori Satoshi,Nagoshi Narihito,Okada Eijiro,Fujita Nobuyuki,Yagi Mitsuru,Nakamura Masaya,Matsumoto Morio,Watanabe Kota 대한척추외과학회 2021 Asian Spine Journal Vol.15 No.5

Study Design: This is a retrospective observational study with an outpatient setting. Purpose: This study aimed to describe the effects of duloxetine (DLX) administration for postsurgical chronic neuropathic disorders (both pain and numbness) following spinal surgery in patients without depression. Overview of Literature: Although several reports indicated the potential of DLX to effectively treat postoperative symptoms as a perioperative intervention, there have been no reports of its positive effect on postsurgical chronic neuropathic disorders. Methods: A total of 24 patients with postsurgical chronic pain and/or numbness Numeric Rating Scale (NRS) scores of ≥4 were enrolled. All patients underwent spine or spinal cord surgery at Keio University Hospital and received daily administration of DLX for more than 3 months. The mean postoperative period before the first administration of DLX was 35.5±57.0 months. DLX was administered for more than 3 months at a dose of 20, 40, or 60 mg/day, and the degree of pain and numbness was evaluated using the NRS before administration and 3 months after administration. Effectiveness was defined as more than a 2-point decrease in the NRS score following administration. Results: In terms of the type of symptoms, 15 patients experienced only numbness, eight experienced both pain and numbness, and one experienced only pain. Of the 24 patients, 19 achieved effective relief with DLX. DLX was effective for all patients with postsurgical chronic pain (n=9), and it reduced postsurgical chronic numbness in 18 of 23 patients. No significant difference was observed in background spinal disorders. DLX was not effective for five patients who complained only of postsurgical chronic numbness. Conclusions: This study reports the effectiveness of DLX for postsurgical chronic neuropathic disorders. Although DLX reduced postsurgical chronic pain (efficacy rate=100%) and numbness (78.3%) in certain patients, further investigation is needed to determine its optimal use.

長野オリンピック·パラリンピック警備につい

Tsuji Takanori 한국범죄심리학회 2015 한국범죄심리학회 학술대회 논문집 Vol.2015 No.1