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31.
目的评价中心静脉导管留置治疗胸腔积液的疗效。方法257例胸腔积液患者分为两组,治疗组207例,应用胸腔留置中心静脉导管治疗;对照组50例,常规胸穿抽液治疗,观察并比较不同治疗方法的疗效、并发症等指标。结果两组对比多项指标差异有显著性(P〈0.05)。结论采用中心静脉导管治疗胸腔积液可减少胸穿次数、降低反应,提高治愈率。 相似文献
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A simple spectrophotometric technique for identifying carcinogens is described based on the observation that many known carcinogens and/or their metabolites exhibit maximal absorption in the 260-273nm range. This absorption spectrum of carcinogens falls between that of DNA base pairs. Carcinogens in the enol form may possess electromagnetic properties which disrupt the normal hydrogen-oxygen bonds between the base pairs, inducing uncontrollable mitosis. 相似文献
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BACKGROUND: Community trail development is an emerging strategy to increase physical activity (PA) among community residents. The purpose of this study was to assess awareness and use of trails and compare perceptions to objective data. METHODS: A telephone survey was administered to a stratified sample of adults (N = 1,112) in a southeastern county in the United States. Respondents' home addresses and the locations of trails were entered into a GIS database. A kappa statistic was used to measure agreement between awareness and presence of trails. Differences in reported trail use patterns by sex, race, education, and PA levels were evaluated. RESULTS: There was no agreement between the awareness and presence of trails (kappa = 0.07). Fifty-six percent of the respondents reported having trails; however, only 33% reported using the trails. Of the trail users, 42% reported being regularly active in moderate-to-vigorous PA (30+ min/day for 5+ days/week), and 51% reported being less active (P < 0.003). Among walkers (> or =30 min/day for > or =5 days/week), 49% of regular walkers and 35% of irregular walkers (< walkers) reported using the trails (P < 0.04). CONCLUSIONS: Awareness of existing trails in this community and levels of use were low. Marketing programs should promote awareness and use of trails among older adults and irregularly active adults. 相似文献
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M?ChakravarthyEmail author V?Jawali M?Manohar TA?Patil K?Jayaprakash NV?Shivananda 《Indian Journal of Thoracic and Cardiovascular Surgery》2003,19(3):151-154
Conclusion Our case report highlights the possibility of tackling mediastinal, pericardial and pleural problems with regional anesthesia
alone even if the surgery requires opening of the pleura. 相似文献
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陶瑞卿 《四川生殖卫生学院学报》2007,(6):32-35,55
公共产品涉及千家万户的切身利益,近10多年来,部分公共产品价格变化又多以超过国民经济发展速度提高,怎样正确认识和判断其价格的合理性,具有十分重要的现实意义。本文分析了我国公共产品的价格类型,定价机制,阐明了我国公共产品的价格约束制度构建的主要内容,希望为政府及相关部门工作提供有益的帮助。 相似文献
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美国食品和药物管理局(Food and Drug Administration,FDA)经过多年发展和改革,已形成了成熟的上市前监管体系。本文通过对FDA上市批准路径(上市前批准、上市前通告、人道主义用器械豁免)和申报流程进行系统介绍,总结了加强事前沟通、降低产品风险等级和设立实质审查程序三个方面的启示,希望我国监管机构能充分吸收美国FDA对于医疗器械监管的经验和教训,建立适合中国国情的医疗器械监管体系,确保公众用器械安全。 相似文献
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Serologic studies using four murine monoclonal antibodies specific for the common acute lymphoblastic leukemia antigen (CALLA) and five monoclonal antibodies specific for the gp24 surface antigen indicate that these leukemia-associated antigens are present on cells of comparable tissues in man and in four nonhuman primates. As in man, adherent cell populations obtained from skin, lung, and bone marrow of Macaca fascicularis, M mulatta, M nemestrina, and Papio cynocephalus react with these antibodies. Similarly, granulocytes from both man and these nonhuman primates bind CALLA- and gp24-specific antibodies. Radioimmune precipitation experiments confirm the identity of these antigens. Our studies suggest that nonhuman primates can be used to screen serologic reagents to leukemia-associated antigens for potential toxic effects on normal tissues prior to their use in man. Similarly, nonhuman primates could be employed to assess the possible role of antigen-positive stromal cells in the reconstitution of bone marrow following transplantation. 相似文献
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