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The Advantage of an Endoscopic Submucosal Tunneling Technique for Rectal Carcinoid Tumors
( Hideki Kobara ),( Hirohito Mori ),( Li Chei Shintaro Fujihara ),( Noriko Nishiyama ),( Tsutomu Masaki ) 대한간학회 2017 Gut and Liver Vol.11 No.5
Endoscopic treatment can be a curative option for small carcinoid tumors with an extremely low risk of metastasis. Since most carcinoid tumors are characterized by a specific growth pattern in the submucosal (SM) layer, specialized endoscopic techniques for deeper resection to achieve clear vertical margins are needed. The endoscopic submucosal dissection (ESD) method in the SM space is superior to con-ventional endoscopic mucosal resection. However, the stan-dard ESD technique sometimes fails to provide complete deep SM dissection due to insufficient SM lifting. Here, to resolve this problem, we describe our initial experience with an endoscopic SM tunneling technique that is effective for treating rectal carcinoid tumors. (Gut Liver 2017;11:735- 737)
A Satellite ATM Network Simulator
Harakawa, Takao,Shimizu, Hideki,Takase, Susumu,Nishiyama, Iwao 통신위성우주산업연구회 2001 Joint Conference on Satellite Communications Vol.2001 No.-
The Next-generation LEO System (NeLS) research center is conducting research and development of the global multimedia mobile satellite communications services using low earth orbit (LEO) satellites. Although the NeLS has less transmission delay and loss than a geostationary orbit (GEC) satellite networks (GSN), it has more line hits and transmission delay variations due to frequent handovers (HOs) and inter-satellite link (ISL) switchovers. Handover and ISL switchover depend on the routing algorithm (RA) and protocol. The authors developed new RAs to decrease the numbers of HOs and ISL switchovers. And the equipment to transmit moving images by MPEG-2 over IP with several functions peculiar to NeLS is also developed for establishing key technologies of multicasting services. This paper describes the developed RAs, the equipment of MPEG-2 over IP and the results of simulation.
Existence of a Neuropathic Pain Component in Patients with Osteoarthritis of the Knee
Seiji Ohtori,Sumihisa Orita,Masaomi Yamashita,Tetsuhiro Ishikawa,Toshinori Ito,Tomonori Shigemura,Hideki Nishiyama,Shin Konno,Hideyuki Ohta,Masashi Takaso,Gen Inoue,Yawara Eguchi,Nobuyasu Ochiai,Shunj 연세대학교의과대학 2012 Yonsei medical journal Vol.53 No.4
Purpose: Pain from osteoarthritis (OA) is generally classified as nociceptive (inflammatory). Animal models of knee OA have shown that sensory nerve fibers innervating the knee are significantly damaged with destruction of subchondral bone junction, and induce neuropathic pain (NP). Our objective was to examine NP in the knees of OA patients using painDETECT (an NP questionnaire) and to evaluate the relationship between NP, pain intensity, and stage of OA. Materials and Methods:Ninety-two knee OA patients were evaluated in this study. Pain scores using Visual Analogue Scales (VAS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), painDETECT, duration of symptoms, severity of OA using the Kellgren-Lawrence (KL) system, and amount of joint fluid were evaluated and compared using a Spearman’s correlation coefficient by rank test. Results: Our study identified at least 5.4% of our knee OA patients as likely to have NP and 15.2% as possibly having NP. The painDETECT score was significantly correlated with the VAS and WOMAC pain severity. Compared with the painDETECT score, there was a tendency for positive correlation with the KL grade, and tendency for negative correlation with the existence and amount of joint fluid, but these correlations were not significant. Conclusion: PainDETECT scores classified 5.4% of pain from knee OA as NP. NP tended to be seen in patients with less joint fluid and increased KL grade, both of which corresponded to late stages of OA. It is important to consider the existence of NP in the treatment of knee OA pain.