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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)
Miura Kousei,Kadone Hideki,Abe Tetsuya,Koda Masao,Funayama Toru,Noguchi Hiroshi,Kumagai Hiroshi,Nagashima Katsuya,Mataki Kentaro,Shibao Yosuke,Sato Kosuke,Kawamoto Hiroaki,Sankai Yoshiyuki,Yamazaki Ma 대한척추외과학회 2021 Asian Spine Journal Vol.15 No.1
Study Design: Prospective experimental study in humans.Purpose: To determine whether the hybrid assistive limb (HAL) for Care Support can reduce lumbar load during a patient transfer.Overview of Literature: The prevalence of work-related low back pain (LBP) among nurses is high. In particular, transferring patients poses a high risk for LBP due to the large lumbar load. Attempts to reduce the lumbar load are crucial to avoid the risk of LBP. Therefore, we investigated the effects of the HAL for Care Support.Methods: Nineteen volunteers (16 men, three women) lifted a 60-kg doll from a seated position to a standing position. The first transfer was performed without the HAL for Care Support, and the second was performed with the HAL for Care Support assistive robot. We evaluated transfer performance, the visual analog scale (VAS) score for lumbar fatigue, and electromyogram analyses of the trunk and hip.Results: Four participants (two men, two women) succeeded with the HAL for Care Support even though they were unable to perform the task without it. The mean lumbar fatigue VAS score for all participants without the HAL for Care Support was 62 mm, while that with it was 43 mm. With lumbar assistance from the HAL for Care Support, subjective lumbar fatigue during the transfer decreased significantly. A power analysis indicated adequate statistical power to detect a difference in the VAS score for lumbar fatigue (0.99). The activity of the left gluteus maximus alone increased significantly during transfers with the HAL for Care Support. No adverse events occurred during use of the HAL for Care Support for transfers.Conclusions: The HAL for Care Support was able to reduce lumbar load in a simulated patient transfer.
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.
Nobuaki Ikezawa,Takashi Toyonaga,Shinwa Tanaka,Tetsuya Yoshizaki,Toshitatsu Takao,Hirofumi Abe,Hiroya Sakaguchi,Kazunori Tsuda,Satoshi Urakami,Tatsuya Nakai,Taku Harada,Kou Miura,Takahisa Yamasaki,Stu 대한소화기내시경학회 2022 Clinical Endoscopy Vol.55 No.3
Background/Aims: Endoscopic submucosal dissection (ESD) for diverticulum-associated colorectal lesions is generally contraindicatedbecause of the high risk of perforation. Several studies on patients with such lesions treated with ESD have been reported recently. However, the feasibility and safety of ESD for lesions in proximity to a colonic diverticulum (D-ESD) have not been fully clarified. Theaim of this study was to evaluate the feasibility and safety of D-ESD. Methods: D-ESD was defined as ESD for lesions within approximately 3 mm of a diverticulum. Twenty-six consecutive patients whounderwent D-ESD were included. Two strategic approaches were used depending on whether submucosal dissection of the diverticulum-related part was required (strategy B) or not (strategy A). Treatment outcomes and adverse events associated with each strategywere analyzed. Results: The en bloc resection rate was 96.2%. The R0 and curative resection rates were 76.4% and 70.6% in strategy A and 88.9% and77.8% in strategy B, respectively. Two cases of intraoperative perforation and one case of delayed perforation occurred. The delayed perforationcase required emergency surgery, but the other cases were managed conservatively. Conclusions: D-ESD may be a feasible treatment option. However, it should be performed in a high-volume center by expert handsbecause it requires highly skilled endoscopic techniques.
Single Crystal Growth and Various Electronic States in Yb-based Compounds
Yusuke Hirose,Shingo Yoshiuchi,Naoto Nishimura,Junya Sakaguchi,Kentaro Enoki,Ken Iwakawa,Yasunao Miura,Kiyohiro Sugiyama,Yoshichika Onuki,Rikio Settai,Tetsuya Takeuchi,Fuminori Honda,Tatsuma D. Matsud 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
We succeeded in growing single crystals of YbTIn5 (T : Co, Rh, Ir), YbGa4, YbT2Zn20 (T : Co,Rh, Ir), YbPdGe, Yb2Pt2Pb, and YbPd5Al2. The electronic and magnetic properties are clarifiedby measuring the electrical resistivity, magnetic susceptibility, magnetization, specific heat and deHaas - van Alphen effect.