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目的 回顾性分析1126例住院心脏病病人的病因,为今后防治工作提供初步依据.方法 收集2000年1月~2004年12月住我科的心脏病病人的病历资料,用回顾性方法进行统计分析.结果 1126例心脏病病人的病因分别是高心病(34.2%)、冠心病(18.0%)、肺心病(13.7%)、联合性心脏病(11.9%)、扩心病(7.8%)、风心病(5.8%)、退行性心脏瓣膜病(3.9%)、急性病毒性心肌炎(2.8%),先心病(1.9%).结论 今后防治工作重点在于实施有效的高血压病和冠心病的防治,还要重视慢性肺心病和风心病的防治. 相似文献
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以曼氏血吸虫的虫卵和成虫免疫家兔后所产生的特异性抗体,可用以日本血吸虫虫卵、尾蚴和成虫为抗原分别进行的COP,CHR和ELACIEP测出,表明两种人体血吸虫存有显著的交叉抗原成分。应用此种血清交叉反应性,以检测抗异种人体血吸虫的抗体,似有效而可取的,可用以辅助诊断援外回国人员是否感染国外人体血吸虫病。 相似文献
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白术、枳实、玫瑰花挥发油-β-环糊精包合物的制备工艺研究 总被引:3,自引:0,他引:3
目的确定白术、枳实、玫瑰花挥发油-β-环糊精包合物的最佳包合工艺。方法采用正交试验法,对挥发油与β-环糊精的包合进行3因素3水平考察。结果挥发油与β-CD投料比为1:9,β-CD与加水量的比为9:100倍,包合时间为4h,包合率为85.3%。结论用此法得到的挥发油-β-环糊精包合物的包合率较高,包合物性质稳定,而且包合操作简单。 相似文献
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BACKGROUND: Moderate hypothermia is one of the effective therapeutic methods for head injury in recent years, there are many mechanisms of moderate hypothermia for brain protection, and its influence on cerebral oxygenation is also one of them.
OBJECTIVE: To observe the influence of moderate hypothermia on cerebral oxygenation of animals with acute intracranial hypertension, and further investigate the protective mechanism of moderate hypothermia.
DESIGN: A randomized controlled trial.
SETTING: Department of Neurosurgery, Renji Hospital affiliated to the Medical College of Shanghai Jiao Tong University.
MATERIALS: Twenty healthy little pigs, either male or female, weighing 4.5–5.5 kg, were used. Neurotrend-typed multiparameter monitoring system (Diametrics Company, British); CMA/100 micro-injection pump (Carnegie Company, Sweden).
METHODS: The experiment was conducted in the Changzheng Hospital affiliated to the Second Military Medical University of Chinese PLA in November, 2001. The pigs were randomized into two groups: the normothermia group (control group, n =10) and moderate hypothermia group (n =10). ① Bilateral femoral arteries were separated, one was connected to pressometer for monitoring mean arterial pressure (MEP), and the other for analysis of blood gases [including peripheral blood pH value, arterial partial pressure of carbon dioxide (PaCO2), arterial partial pressure of carbon dioxide (PaCO2), HCO3–]. ② Rectal temperature was monitored with mercurial thermometer. ③ Intracranial pressure was monitored using Camino optic ICP probe placed in the subdural space. ④ Neurotrend multiparameter monitoring sensor was inserted into the white matter for about 4 cm to determine cerebral perfusion pressure (CPP, CPP=MAP(ICP), brain tissue partial oxygen pressure (PO2), partial pressure of carbon dioxide (PCO2), HCO3– and brain temperature. The rectal temperature of animals in the moderate hypothermia group was lowered to 34 ℃ using ice bags, and the body temperature was maintained at 33–35 ℃ for 2 hours. The changes of the parameters were observed continuously, and the pigs in the normothermia group were not treated with cooling.
MAIN OUTCOME MEASURES: ① MAP, ICP, rectal temperature, CCP; Indexes of cerebral oxygenation detected with Neurotrend-typed multiparameter monitoring system; ② Results of blood gases analysis in the moderate hypothermia group.
RESULTS: All the 20 pigs were involved in the analysis of results. ① MAP, ICP, rectal temperature, CCP and indexes of cerebral oxygenation: In the moderate hypothermia group, the ICP after cooling was obviously lower than that before cooling [(3.31±1.19), (5.33±0.95) kPa, P < 0.05], CCP was higher, brain tissue PCO2 [(12.03±1.73), (10.59±2.01) kPa, P < 0.05], and brain tissue pH value was higher [(7.03±1.63), (9.40±1.30) kPa, P < 0.05], whereas the brain temperature was decreased as compared with that before cooling [(34.9±0.3), (37.2±0.2) ℃, P < 0.05]. ② Results of blood gases analysis in the moderate hypothermia group: There were no significant differences in the parameters of peripheral arterial blood gases analysis before and after cooling in the moderate hypothermia group (P > 0.05)
CONCLUSION: Moderate hypothermia will not impair the cerebral oxygenation, and it can reduce brain tissue CO2 and decrease brain tissue acidosis. 相似文献
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Guo-Lin Wei Juri Melnik Jing-Li Luo Alan R. Sanger Karl T. Chuang 《Journal of electroanalytical chemistry (Lausanne, Switzerland)》2005,575(2):183-193
The performances of three widely different cathode materials (Pt, strontium-doped lanthanum manganite (LSM), and NiO) have been compared for use with proton conducting Li2SO4–Al2O3 composite electrolyte, using H2S–air and H2–air fuel cells operating at 600 °C. Surface analysis and electrochemical techniques were used to characterize fresh and used electrode materials. Pt or LSM cathodes each became covered with Li2SO4 and Al2O3 and, as a consequence, the fuel cells showed poor performance. In contrast, the NiO cathode catalyst did not become covered with Li2SO4 and good fuel cell performance was achieved. Exceptionally good current densities of over 100 mA/cm2 and power densities of over 30 mW/cm2 were obtained for H2S–air fuel cells having Mo–Ni–S anode catalysts. Slight agglomeration of NiO particles during fuel cell operation had only a minor effect on performance. 相似文献
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反相高效液相色谱法测定洛氟沙星的血药浓度 总被引:7,自引:1,他引:6
采用反相HPLC法测定洛氟沙星的血药浓度,血浆样品用二氯甲烷在pH7.0条件下提取后进样,流动相为10m mol/L磷酸二氢钾-10m mol/L溴化四丁铵-乙腈-三乙胺(45:44:10:1,磷酸调节pH2.8),紫外检测器λ=295nm,最低检测浓度10μg/L,线性范围:0.1 ̄6.0mg/L,r=0.9999,日内RSD为1.38% ̄3.42%,日间RSD为1.11% ̄2.89%。 相似文献
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法半夏罗汉果川贝枇杷膏与强力枇杷露药理作用的比较研究 总被引:3,自引:0,他引:3
法半夏罗汉果川贝枇把膏与强力批他露均有镇咳祛痰作用,罗汉果川贝枇把膏尚能平喘抗炎。 相似文献