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Use of Imaging Agent to Determine Postoperative Indwelling Epidural Catheter Position
Uchino, Tetsuya,Hagiwara, Satoshi,Iwasaka, Hideo,Kudo, Kyosuke,Takatani, Junji,Mizutani, Akio,Miura, Masahiro,Noguchi, Takayuki The Korean Pain Society 2010 The Korean Journal of Pain Vol.23 No.4
Background: Epidural anesthesia is widely used to provide pain relief, whether for surgical anesthesia, postoperative analgesia, treatment of chronic pain, or to facilitate painless childbirth. In many cases, however, the epidural catheter is inserted blindly and the indwelling catheter position is almost always uncertain. Methods: In this study, the loss-of-resistance technique was used and an imaging agent was injected through the indwelling epidural anesthesia catheter to confirm the position of its tip and examine the migration rate. Study subjects were patients scheduled to undergo surgery using general anesthesia combined with epidural anesthesia. Placement of the epidural catheter was confirmed postoperatively by injection of an imaging agent and X-ray imaging. Results: The indwelling epidural catheter was placed between upper thoracic vertebrae (n = 83; incorrect placement, n = 5), lower thoracic vertebrae (n = 123; incorrect placement, n = 5), and lower thoracic vertebra-lumbar vertebra (n = 46; incorrect placement, n = 7). In this study, a relatively high frequency of incorrectly placed epidural catheters using the loss-of-resistance technique was observed, and it was found that incorrect catheter placement resulted in inadequate analgesia during surgery. Conclusions: Although the loss-of-resistance technique is easy and convenient as a method for epidural catheter placement, it frequently results in inadequate placement of epidural catheters. Care should be taken when performing this procedure.
Uchino, Junji,Hirano, Ryosuke,Tashiro, Naoki,Yoshida, Yuji,Ushijima, Shinichiro,Matsumoto, Takemasa,Ohta, Keiichi,Nakatomi, Keita,Takayama, Koichi,Fujita, Masaki,Nakanishi, Yoichi,Watanabe, Kentaro Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.8
Aims and Background: To evaluate the efficacy of a combination of aprepitant and conventional antiemetic therapy in patients with advanced or recurrent lung cancer receiving moderately emetogenic chemotherapy (MEC). Methods: Patients with advanced or recurrent lung cancer who were treated with MEC regimens at the Department of Respiratory Medicine, Fukuoka University Hospital, were included and classified into the following groups: control group (treatment: 5-HT3 receptor antagonists + dexamethasone) and aprepitant group (treatment: 5-HT3 receptor antagonists + dexamethasone + aprepitant). The presence or absence of chemotherapy-induced nausea and vomiting (CINV) was evaluated according to the Common Terminology Criteria for Adverse Events (CTCAE) v4.0; patients with grade 1 or above were considered positive for CINV. Food intake per day, completion of planned chemotherapy, and progression-free survival (PFS) achieved by chemotherapy were investigated. Results: The complete suppression rate of nausea in the aprepitant group was significantly higher than that in the control group (p = 0.0043). Throughout the study, the food intake in the aprepitant group was greater than that in the control group, with the rate being significantly higher, in particular, on day 5 (p = 0.003). The completion rate of planned chemotherapy was also higher in the aprepitant group (p = 0.042). PFS did not differ significantly, but tended to be improved in the aprepitant group. Conclusions: The aprepitant group showed significantly higher complete suppression of nausea, food intake on day 5, and completion of planned chemotherapy than the control group.
A New Cancer Cell Detection Method Using an Infectivity-enhanced Adenoviral Vector
Uchino, Junji,Takayama, Koichi,Nakagaki, Noriaki,Shuo, Wang,Hisasue, Junko,Nakatom, Keita,Ohta, Keiichi,Hirano, Ryosuke,Tashiro, Naoki,Miiru, Izumi,Fujita, Masaki,Watanabe, Kentaro,Nakanishi, Yoichi Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.11
Cytological examination is widely used as a diagnostic tool because of the ease of collecting cells from the involved area. However, the diagnostic yield of cytological examination is unsatisfactory; the reasons include sampling error, poorly prepared samples, small numbers of malignant cells, and low grades of cellular atypia. In this study, we focused on the high infectivity of adenovirus towards epithelial cells and applied the luciferase-expressing adenoviral vector to a new cancer cell detection tool. In addition, adenoviral infectivity was enhanced by modifying viral fiber proteins. The sensitivity of the diagnostic tool was tested using the NCI-H1299 lung cancer cell line, and validated in body fluid samples from cancer patients with a variety of etiology. Results showed that the adenovirus efficiently transfected NCI-H1299 with high sensitivity. Only 10 cancer cells were sufficient for detection of luciferase signals. In body fluid samples, the adenovirus confirmed the diagnosis for malignant and benign cancer, but not in non-epithelial cell derived samples. This study provides proof-of-concept for a more reliable and sensitive diagnostic tool for epithelium-derived cancer.
Use of Imaging Agent to Determine Postoperative Indwelling Epidural Catheter Position
( Tetsuya Uchino ),( Satoshi Hagiwara ),( Hideo Iwasaka ),( Kyosuke Kudo ),( Junji Takatani ),( Akio Mizutani ),( Masahiro Miura ),( Takayuki Noguchi ) 대한통증학회 2010 The Korean Journal of Pain Vol.23 No.4
Background: Epidural anesthesia is widely used to provide pain relief, whether for surgical anesthesia, postoperative analgesia, treatment of chronic pain, or to facilitate painless childbirth. In many cases, however, the epidural catheter is inserted blindly and the indwelling catheter position is almost always uncertain. Methods: In this study, the loss-of-resistance technique was used and an imaging agent was injected through the indwelling epidural anesthesia catheter to confirm the position of its tip and examine the migration rate. Study subjects were patients scheduled to undergo surgery using general anesthesia combined with epidural anesthesia. Placement of the epidural catheter was confirmed postoperatively by injection of an imaging agent and X-ray imaging. Results: The indwelling epidural catheter was placed between upper thoracic vertebrae (n = 83; incorrect placement, n = 5), lower thoracic vertebrae (n = 123; incorrect placement, n = 5), and lower thoracic vertebra-lumbar vertebra (n = 46; incorrect placement, n = 7). In this study, a relatively high frequency of incorrectly placed epidural catheters using the loss-of-resistance technique was observed, and it was found that incorrect catheter placement resulted in inadequate analgesia during surgery. Conclusions: Although the loss-of-resistance technique is easy and convenient as a method for epidural catheter placement, it frequently results in inadequate placement of epidural catheters. Care should be taken when performing this procedure. (Korean J Pain 2010; 23: 247-253)
What about Machines? Performing “J-type” Technology in Japan`s Contemporary Performance Culture
( Tadashi Uchino ) 大韓舞踊學會 2013 대한무용학회논문집 Vol.71 No.3
In this paper, I will examine three performances in which the issue of technology manifests itself in various forms. In Dumb Type`s pH (1990-3), technology is represented in close affinity with the humanist tradition, where technology is pitted against humans. In Hirata Oriza`s robot theatre (2010), the “real” robots are used as characters of the play. The effect is interesting, though we cannot but feel Hirata`s strong sense of anxiety. The last case is by Ikegami Takashi, a leading AI scientist. It is a provocative experiment with dancers, exploring the possibility of renewing the sense of technology in performance.
Development of International Standardization Using Debris Environment Models for Spacecraft Design
Masato Uchino,Yasuhiro Akahoshi,Yukihito Kitazawa,Tekeo Goka,Hiroto Nagai 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-
Accurate estimations of impact flux of debris, relative impact velocity, and impact angle of space debris on an orbit are necessary for reliable design of spacecrafts. Space agencies of some countries have their space debris environment models which can estimate debris flux as a function of the size, relative impact velocity, and impact angle in a spacecraft orbit. However. it is known that the calculation results of models have not been always consistent with each other. In the present. since an estimation result of debris impact depends on the choice of debris environment model, no unified estimation exists in design of spacecrafts. Therefore, international standardization of estimation using the debris environment model is required and the proposal of the international standard is being prepared in Japan. In this paper, as the first step of the international standardization of estimation of debris environment model, we compare the estimation results of debris impact flux in the low earth orbit calculated by three available debris environment models: ORDEM2000 of NASA, MASTER2001 of NASA, and MASTER2005 that is the an upgrade version of MASTER2001. In addition, we suggest a reasonable method using the three debris environment models for the international standardization of spacecraft design.