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目的：总结高原地区体外循环（CPB）下手术治疗先天性心脏间隔缺损合并肺动脉高压患者围术期处理的经验。方法：回顾性分析2001年6月至2001年11月在海拔3700m手术治疗的先天性心脏间隔缺损患者45例，其中藏族19例，世居西藏地区的汉族26例。继发孔型房间隔（ASD）17例、室间隔缺损（VSD）22例、VSD合并ASD6例；合并肺动脉瓣狭窄2例、动脉导管未闭（PDA）4例、先天性三尖瓣穿孔1例、中度以上三尖瓣关闭不全26例。术前肺动脉平均压18-51mmHg，轻度肺动脉高压15例，中度肺动脉高压17例，严重肺动脉高压11例。均在浅低温中度血液稀释CPB下施行手术。结果：无早期死亡。除1全术前合并严重肺动脉高压患者，术后3h出现肺动脉高压危象外，其他患者均未出现心、肺和神经等系统严重的并发症；术后6-15d痊愈出院。结论：高原地区施行先天性心脏间隔缺损心内直视修补手术，术后应避免肺动脉高压危象和低氧血症的发生、积极纠下在酸中毒，可取得满意的早期疗效。 相似文献
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本文就我院部分婴幼儿心脏术后窒息的护理、协助婴幼儿顺利渡过术后窒息危险期的方式进行总结，并提示在高原针对性的护理可明显改善先心病术后窒息的预后。 相似文献
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陶贵周，1959年出生，医学硕士，教授，硕士生导师。现任锦州医学院附属第一医院内科教研室主任，心血管病诊治中心主任，辽宁省心血管分会副主任委员，锦州市心血管分会主任委员。他所领导的锦医附属一院心血管病诊治中心连续多年被评为锦州市心血管病领域的唯一重点学科，是名符其实的辽西地区教学、医疗、科研中心。他将国外学到的新技术应用到临床实践中，产生了显著的经济效益和社会效益。其心血管病诊治中心每年收治病人5000余人，年收入超过千万，床位利用率95％以上。每年开展各项心脏介入手术300多例，成功率达到99％，包括：永久性心脏起搏器安置术、室上性心动过速的射频消融术、冠状动脉造影、经皮经腔冠状动脉内球囊扩张术加支架置入术、动脉导管未闭修补术、房间隔缺损封堵术、肥厚性梗阻性心肌病经导管化学消融术等。这些新技术项目均填补了辽西地区心血管病医治领域的空白，尤其是急诊冠状动脉介入治疗术，其治疗急性心肌梗塞大大降低了心梗患者的死亡率（由20％降至1％）。中心开展介入手术五年来，无一例医疗事故发生。 相似文献
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目的:分析强负荷运动量同心率变异的关系。方法:将某学院40男子健美操运动员,按照强负荷运动量从小到大划分成,短时间、中时间以及长时间运动三组实验组,每组10名运动员,普通运动员10名,设为安静组。对实验组以及安静组的运动员心率变异性机进行心率变化、时域、频域以分析,对强负荷运动员的运动量与心率变异关系进行分析。结果:随着运动员运动负荷量的逐渐增加,长时间运动结束后的心率下降最为显著,运动员的平均RR、SDNN、SDNN/HR都不断降低,长时间运动员的平均RR、SDNN/HR明显低于安静组,SDNN值略低于安静组,不具备显著性(p0.05)。结论:随着强负荷运动量的逐渐增加,运动员心率变异性逐渐降低,总体自主神经调控功能增强,交感神经张力在运动中持续升高,迷走神经对交感神经的抑制逐渐降低。 相似文献
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目的：评价高原地区继发孔型房间隔缺损（ASD）合并肺动脉高压手术治疗的早期疗效。方法：回顾性分析2001年6月至2001年11月在海拔3700m手术治疗的ASD合并肺动脉高压患者21例。其中藏族12例，移居西藏地区的汉族9例；合并室间隔缺损（VSD）6例、中度以上三尖瓣功能性关闭不全7例。术前动脉血氧分压50．1－61．4mmHg、碱剩余－4．3－11．0。均在浅低温、中度血液稀释、心脏不停跳CPB下施行手术。ASD采取直接缝合，同期行VSD修补6例，改良De Vega三尖瓣成形术7例。结果：无手术死亡；均于术后8h内拔除气管插管；术后未出现心、肺和神经等系统严重的并发症；出院时经超声心动图检查未发现残余漏；术后7－10d均痊愈出院。结论：高原地区采用心脏不停跳技术，施行先天性房间隔缺损心内直视修补手术，避免或明显减轻缺血再灌注损伤，可取得确切、满意的早期疗效。 相似文献
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探讨高原地区心脏贯通伤的求治原则。方法：１７心脏贯通伤均急诊行开胸探查,修补。结果：全部存活,其中２例术后出现ＡＲＤＳ先兆,均经积极治疗痊愈。结论高原心脏贯通伤情重,均应积极开胸探查,缓解心包填塞,修补裂口维持呼吸道通畅,充分给氧,防治ＡＲＤＳ具有重要意义。 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献