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22篇 您的检索式:作者名="COMAN V"
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1Training in endoscopic submucosal dissection显示文摘Endoscopic submucosal dissection (ESD) represents an important advancement in the therapy of early neoplastic gastrointestinal lesions by providing higher en-bloc curative resection rate with lower recurrence compared to endoscopic mucosal resection (EMR) and by sparing the involved organ and protecting patient' s quality of life. Despite these advantages ESD is associated with long procedure times and a higher rate of complications, making ESD a challenging procedure which requires advanced endoscopic skills. Thus, there has been a recognized need for structured training system for ESD to enhance trainee experience and, to reduce the risks of complications and inadequate treatment. ESD has a very flat learning curve. However, we do not have uniformly accepted benchmarks for competency. Nevertheless, it appears that, in Japan, more than 30 supervised gastric ESD procedures are required to achieve technical proficiency and minimize complications. A number of training algorithms have been pro-posed in Japan with the aim to standardize ESD training. These algorithms cannot be directly applied in the West due to substantial differences including the availability of highly qualified mentors, the type of pathology seen, choice of devices, and trainee's background. We propose a training algorithm for Western physicians which integrates both hands-on training courses, animal model work as well as visits to expert centers. No specific preceptor training programs have been yet developed but there is a consensus that these programs are important for permeation of ESD worldwide.Roxana M Coman Takuji Gotoda Peter V Draganov 2013World Journal of Gastrointestinal Endoscopy2013,5,8:8
2Role of observation of live cases done by Japanese experts in the acquisition of ESD skills by a western endoscopist显示文摘AIM:To evaluate the role of observation of experts performing endoscopic submucosal dissection(ESD)in the acquisition of ESD skills.METHODS:This prospective study is documenting the learning curve of one Western endoscopist.The study consisted of three periods.In the first period(preobservation),the trainee performed ESDs in animal models in his home institution in the United States.The second period(observation)consisted of visit to Japan and observation of live ESD cases done by experts.The observation of cases occurred over a 5-wk period.During the third period(post-observation),the trainee performed ESD in animal models in a similar fashion as in the first period.Three animal models were used:live40-50 kg Yorkshire pig,explanted pig stomach model,and explanted pig rectum model.The outcomes from the ESDs done in the animal models before and after observation of live human cases(main study intervention)were compared.Statistical analysis of the data included:Fisher’s exact test to compare distributions of a categorical variable,Wilcoxon rank sum test to compare distributions of a continuous variable between the two groups(pre-observation and post-observation),and Kruskal-Wallis test to evaluate the impact of lesion location and type of model(ex-vivo vs live pig)on lesion removal time.RESULTS:The trainee performed 38 ESDs in animal model(29 pre-observation/9 post-observation).The removal times post-observation were significantly shorter than those pre-observation(32.7±15.0 min vs 63.5±9.8 min,P<0.001).To minimize the impact of improving physician skill,the 9 lesions post-observation were compared to the last 9 lesions pre-observation and the removal times remained significantly shorter(32.7±15.0 min vs 61.0±7.4 min,P=0.0011).Regression analysis showed that ESD observation significantly reduced removal time when controlling for the sequence of lesion removal(P=0.025).Furthermore,it was also noted a trend towards decrease in failure to remove lesions and decrease in complications after the period of observation.This study did not find a significant difference in the time needed to remove lesions in different animal models.This finding could have important implications in designing training programs due to the substantial difference in cost between live animal and explanted organ models.The main limitation of this study is that it reflects the experience of a single endoscopist.CONCLUSION:Observation of experts performing ESD over short period of time can significantly contribute to the acquisition of ESD skills.Peter V Draganov Myron Chang Roxana M Coman Mihir S Wagh Qi An Takuji Gotoda 2014World Journal of Gastroenterology2014,20,16:3
3Selective inhibittion of inducible nitric oxide synthase in experimental osteoarthritis is associated with reduction in tissue levels of catabolic factors 显示文摘Pelletier JP Lascau- Coman V Jovanovic D 1999J Rheumatol1999,26,:1
4Selective inhibi- tion of inducible nitric oxide synthase in experimental oateoarthritis is associated with reduction intissue levels of catabolic factors显示文摘Pelletier JP Lascau - Coman V J Jovanovic D 1999Rheu- matot1999,26,:1
5Selective inhibition of inducible nitric oxide synthase reduces progression of experimental osteoarthritis in vivo:possible link with the reduction in chondrocyte apoptosis and caspase 3 level1显示文摘 Jovanovic DV Lascau Coman V 2000Arthritis Rheum2000,43,6:1
6Collagenase-1 and collagenase-3 synthesis in normal and early experimental osteoarthritic canine cartilage:an immunohistochemical study显示文摘FERNANDES J C MARTEL PELLETIER J LASCAU COMAN V 1998J Rheumatol1998,25,8:1
7Measuring the specific caesium sorption capacity of soils, sediments and clay minerals 显示文摘Koning A D Konoplev A V Comans RNJ 2007Appl Geochem2007,22,:1
8Selective inhibition of inducible nitric oxide synthase in experimental osteoarthritis is associated with reduction in tissue levels of catabolic factors 显示文摘Pelletier JP Lascau - Coman V Jovanovic D 1999J Rheumatol1999,26,:1
9Selective inhibition of inducible nitric oxide synthase in experimental osteoarthritis is associated with reduction in tissue levels of catabolic factors显示文摘Pelletier JP Lascau - Coman V Jovanovic D 1999J Rheumatol1999,26,9:1
10Transformation of C6 hydrocarbons of sulfated zirconia catalysts显示文摘COMAN S PARVULESCU V GRANEE P 1998J Catal1998,176,:1
11Simultaneous determination of glucose, fructose, sucrose and sorbitol in the leaf and fruit peel of dif- ferent apple cultivars by the HPLC-RI optimized method显示文摘FILIP M VLASSA M COMAN V 2016Food Chem2016,199,:1
12Preparation and characterization of sulfated zirconia catalysts obtained via various procedures显示文摘 Coman S Grange P 1999Appl Catal1999,176,:1
13Improving the uncommon (110) growing orientation of Al-doped ZnO thin films through sequential pulsed laser deposition 显示文摘COMAN T URSU E L NICA V 2014Thin Solid Films2014,571,:1
14Reducibility of ruthenium in relation with zeolite structure显示文摘Parvulescu V I Coman S Palade P 1999Applied Surface Science1999,141,12:1
15Comparative behavior of various lipases in benign water显示文摘Mantarosie L Coman S Parvulescu V I 2008J Mol Catal A:Chem2008,279,2:1
16显示文摘Iosif F Coman S Parvulescu V 2004Chemical Communications2004,11,:1
17Selective inhibi- tion of inducible nitricoxi desynthase in experimental oateoarthritis is associated with reduction in tissue levels of catabolic factors 显示文摘Pelletier JP Lascau- Coman V Jovanovic D 1999J Rheumatol1999,9,:1
18Contribution of Natural Organic Matter to Copper Leaching from Municipal Solid Waste Incinerator Bottom Ash 显示文摘Zomeren A V Comans Rob N J 2004Environ Sci Teehnol2004,38,:1
19selective inhibition of inducible nitric oxide synthase in experimental osteoarthritis is associated with reduction in tissue levels of catabolic factors显示文摘Pelletier JP Lascau - Coman V Jovanovic D 1999J Rheumatol1999,26,:1
20Supratentorial epidural hematoma of traumatic etiology in infants显示文摘Ciurea A V Kapsalaki E Z Coman T C 2007Childs Nerv Syst2007,23,3:1
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