2.Thrombomodulin Concentration in Patient Undergoing Surgery for Abdominal Aortic Aneurysm.
Takaaki Sugita ; Shoji Watarida ; Kazuhiko Katsuyama ; Yasuhiko Nakajima ; Rie Yamamoto ; Atsumi Mori
Japanese Journal of Cardiovascular Surgery 1997;26(2):87-89
Thrombomodulin is an endothelial cell membrane protein that is released into the blood in soluble forms in response to endothelial damage. We evaluated thrombomodulin in blood samples taken from the femoral vein before, during and after elective surgery for abdominal aortic aneurysm in 9 patients. Thrombomodulin was measured using an ETA assay. Thrombomodulin decreased significantly just before aortic declamp from before surgery (p<0.001), and remained unchanged just after and 1 hour after aortic declamp. Three hours after aortic declamp, thrombomodulin increased significantly from 1 hour after aortic declamp (p<0.01), peaked at 6 hours after aortic declamp and then decreased. These data suggest that thrombomodulin did not increase significantly during surgery for abdominal aortic aneurysm.
3.Unusual Dilatation of Gelatin-Impregnated Knitted Dacron Prostheses after Abdominal Aortic Aneurysm Surgery.
Takaaki Sugita ; Shoji Watarida ; Masahiko Onoe ; Takehisa Nojima ; Kazuhiko Katsuyama ; Yasuhiko Nakajima ; Rie Yamamoto ; Ryoko Tabata ; Shuichi Matsuno ; Atsumi Mori
Japanese Journal of Cardiovascular Surgery 1995;24(6):363-367
We experienced unusual dilatation of gelatin-impregnated knitted Dacron prostheses after abdominal aortic aneurysm surgery. Therefore, we investigated dilatation of gelatin impregnated knitted Dacron grafts compared with other types of Dacron grafts after abdominal aortic aneurysm surgery. Eighteen grafts inserted after abdominal aortic aneurysm surgery were studied for to evaluate dilatation. Enhance CT was used to determine the external diameter of the most dilated portion of the abdominal aortic grafts and high speed plain CT was used to determine the most dilated internal diameter. The gelatin-impregnated knitted Dacron grafts dilated from 25% to 43.8% (mean 31.8±7.2%), significantly more than collagen impregnated woven Dacron grafts (p=0.0003). Moreover, high fever was frequently noticed after these grafts implantation (66.7%). Therefore, caution must be used concerning these implantation in aortic lesions and careful follow-up study should be performed after implantation.
4.The Physical Effects of Body Movement on Axillary-to-Femoral Artery Graft.
Rie Yamamoto ; Takaaki Sugita ; Shouji Watarida ; Masahiko Onoe ; Kazuhiko Katsuyama ; Yasuhiko Nakajima ; Ryoukou Tabata ; Shuuichi Matuno ; Astushi Mori
Japanese Journal of Cardiovascular Surgery 1996;25(2):109-112
We encountered an unusual disruption of an expanded polytetrafluoroethylene (EPTFE) axillofemoral bypass graft apart from that anastomoses. We suspected the possible robe of the physical effects of body movement provoking the disruption of the axillofemoral bypass graft and therefore examined the physical effect of body movement on the axillary-to-femoral artery graft in 15 healthy men. At the lower part of the graft, the physical effect was significantly stronger. The disruption of this axillary-to-femoral artery graft was associated with the physical effect of body movement.
5.Reliability Comparison between “Distal Radius and Ulna” and “Simplified Tanner–Whitehouse III” Assessments for Patients with Adolescent Idiopathic Scoliosis
Akinori OKUDA ; Hideki SHIGEMATSU ; Hiromasa FUJII ; Eiichiro IWATA ; Masato TANAKA ; Yasuhiko MORIMOTO ; Keisuke MASUDA ; Yusuke YAMAMOTO ; Yasuhito TANAKA
Asian Spine Journal 2020;14(3):280-286
Methods:
We retrospectively evaluated 54 hands of 40 girls with AIS who visited Nara Medical University Hospital from 2000 to 2015 using previously collected radiographs. The examiners included a spine surgeon and a pediatric orthopedic surgeon, each with over 10 years of experience. The reliability of the DRU and sTW3 was evaluated using the kappa coefficient.
Results:
The left-hand radiographs of 40 female patients with AIS (mean age, 13.9±1.7 years; N=54 hands) were evaluated by two blinded examiners using the sTW3 and DRU methods. The highest inter-observer and intra-observer reliabilities (kappa, 0.64 and 0.62, respectively) for radius evaluation were determined. Radius evaluation by the DRU showed the highest agreement rate and smallest error between the inter- and intra-observer examinations.
Conclusions
The DRU was the most reliable assessment tool, and it has the potential to be useful for precisely determining the stage of skeletal maturity in outpatient clinics.
6.The ideal focus of the study in the drug information sciences
Yasuhiko Yamada ; Yasufumi Sawada ; Koujirou Yamamoto ; Takashi Iikubo ; Hisakazu Ohtani ; Naoki Kamimura ; Yoshihiro Abe ; Keiko Uehara ; Takafumi Ohta ; Takao ORII ; Toshiko Kishimoto ; Mitsuo Saito ; Keiko Butatsu ; Hiroyuki Taruno ; Youhei Chikazawa ; Hiromitsu Nakasa ; Masayuki Hashiguchi ; Satoko HORI ; Toshinori Yamamoto
Japanese Journal of Drug Informatics 2009;11(2):76-87
In 2008, Japanese Society of Drug Informatics (JASDI) organized the Future Vision Committee (the Committee) to propose the essential focus of drug informatics. To explore a future vision about the drug information sciences, it was necessary to collect a variety of opinions widely from researchers. Therefore, at the 11th annual meeting of JASDI in July 5-6, 2008, the Committee convened a workshop to extract problems in the researches of drug informatics by using KJ method and evaluated the contents. The major problems raised were “the field of drug informatics is too broad” and “there is no definition and/or no system of the drug informatics”. Related problems raised are the shortness of the history and lack of originality in the study. From different viewpoints, it was also pointed out that the methodology of the research is not well established and no systematic education is provided. Taken together, major problems in drug informatics are concluded to be the lack of definition and the lack of systematizations, and will be solved to a certain extent by defining the outcome of the researches in drug informatics.
7.Iatrogenic Lumbar Vertebral Fracture during Osteosynthesis for a Trochanteric Fracture of the Femur in Diffuse Idiopathic Skeletal Hyperostosis.
Takeshi SASAGAWA ; Hideki MURAKAMI ; Yoshinobu MARUHASHI ; Takeshi SEGAWA ; Daiki YAMAMOTO ; Shusuke SHIMIZU ; Yasuhiko MORITA ; Takuya NAKAMURA
Asian Spine Journal 2015;9(5):803-806
Vertebral fractures occur with only slight trauma in patients with diffuse idiopathic skeletal hyperostosis (DISH). However, a lumbar vertebra fracture, due to an intraoperative body position has not been previously reported. An 87-year-old woman with kyphosis sustained a left trochanteric fracture of her femur. The patient was placed in a supine position during the operation. Postoperatively, the patient experienced severe right thigh pain. Magnetic resonance imaging revealed an L4 vertebral fracture. Computed tomography revealed ankylosis from the upper thoracic spine to the sacrum. While in a supine position under general anesthesia, the contact of the patient's lower back with operating table likely created a fulcrum at her lumbosacral spine acting as a long lever arm, bearing the mass of her upper body. We performed L1-S2 posterior stabilization. DISH patients with kyphosis placed in a supine position have an increased risk for lumbar vertebral fracture.
Aged, 80 and over
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Anesthesia, General
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Ankylosis
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Arm
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Female
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Femur*
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Humans
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Hyperostosis, Diffuse Idiopathic Skeletal*
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Kyphosis
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Magnetic Resonance Imaging
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Operating Tables
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Sacrum
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Spine
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Supine Position
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Thigh
9.4. Alignment of the 2022 Revision of the Model Core Curriculum for Medical Education in Japan with the‘Standards of the National Medical Practitioners Qualifying Examination'
Hiroyuki KOMATSU ; Masanaga YAMAWAKI ; Masatomi IKUSAKA ; Masato ETO ; Yasuhiko KONISHI ; Keiichiro SUZUKI ; Shoichi SHIMADA ; Osamu NOMURA ; Yasushi MATSUYAMA ; Harumi GOMI ; Akira YAMAMOTO ; Takeshi ONOUE ; Hitoshi HASEGAWA ; Hideki TAKAMI ; Hitoaki OKAZAKI
Medical Education 2023;54(2):157-163
In this revision, we have attempted to align the Model Core Curriculum for Medical Education competency, "problem-solving ability based on specialized knowledge," with the "Standards of National Examination for Medical Practitioners." The major diseases and syndromes in "Essential Fundamentals" correspond to the basic diseases in Table 1 of the Core Curriculum, symptoms, physical and laboratory examinations, and treatment in "General Medicine" correspond to the items in Table 2 of the Core Curriculum, and the diseases in "Medical Theory" correspond to the diseases in PS-02 of the Core Curriculum. The validity of the diseases in the Core Curriculum was verified using the evaluation results of the examination level classification of the "Research for Revision of National Examination Criteria." Approximately 690 diseases were conclusively selected. This revision mentions the number of diseases in the Core Curriculum for the first time. Hopefully, this will lead to a deeper examination of diseases that should be studied in medical schools in the future.