目的探讨不同的水化护理方案在预防冠状动脉介入术后造影剂肾病发生的效果。方法选择552例可疑冠心病患者为研究对象,随机分为碳酸氢钠(Na HCO3)组、生理盐水(NS)组和N-乙酰半胱氨酸(NAC)组各184例,并给予相应水化护理方案,比较3组患者...目的探讨不同的水化护理方案在预防冠状动脉介入术后造影剂肾病发生的效果。方法选择552例可疑冠心病患者为研究对象,随机分为碳酸氢钠(Na HCO3)组、生理盐水(NS)组和N-乙酰半胱氨酸(NAC)组各184例,并给予相应水化护理方案,比较3组患者PCI手术后血肌酐变化、CIN发生率及患者接受水化护理后护理满意度变化。结果 Na HCO3组PCI术后血肌酐水平升高幅度及CIN发生率均显著低于另外2组(P均<0.05),NAC组患者护理满意度最低(P<0.05)。结论 Na HCO3水化方案优于NS和NAC水化方案,可在临床护理工作中推广。展开更多
A novel in-situ electrochemical oxidation method was applied to the degradation of wastewater containing chlorophenol. Under oxygen sparging, the strong oxidant, hydrogen dioxide, could be in-situ generated through th...A novel in-situ electrochemical oxidation method was applied to the degradation of wastewater containing chlorophenol. Under oxygen sparging, the strong oxidant, hydrogen dioxide, could be in-situ generated through the reduction of oxygen on the surface of the cathode. The removal rate ofchlorophenol could be increased 149% when oxygen was induced in the electrochemical cell. The promotion factor was estimated to be about 82.63% according to the pseudo-first-order reaction rate constant (min^-1). Important operating parameters such as current density, sparged oxygen rate were investigated. Higher sparged oxygen rate could improve the degradation of chlorophenol. To make full use of oxygen, however, sparged oxygen rate of 0.05 m3/h was adopted in this work. Oxidation-reduction potential could remarkably affect the generation of hydrogen peroxide. It was found that the removal rate of chlorophenol was not in direct proportion to the applied current density. The optimum current density was 3.5 mA/cm^2 when initial chlorophenol concentration was 100 mg/L and sparged oxygen rate was 0.05 m^3/h.展开更多
文摘目的探讨不同的水化护理方案在预防冠状动脉介入术后造影剂肾病发生的效果。方法选择552例可疑冠心病患者为研究对象,随机分为碳酸氢钠(Na HCO3)组、生理盐水(NS)组和N-乙酰半胱氨酸(NAC)组各184例,并给予相应水化护理方案,比较3组患者PCI手术后血肌酐变化、CIN发生率及患者接受水化护理后护理满意度变化。结果 Na HCO3组PCI术后血肌酐水平升高幅度及CIN发生率均显著低于另外2组(P均<0.05),NAC组患者护理满意度最低(P<0.05)。结论 Na HCO3水化方案优于NS和NAC水化方案,可在临床护理工作中推广。
基金Project supported partially by the Hi-Tech Research and Devel-opment Program (863) of China (No. 2002AA529182) and the Foundation of Education Ministry of China (No. 98679) andZhejiang Provincial Natural Science Foundation of China (No. 200043)
文摘A novel in-situ electrochemical oxidation method was applied to the degradation of wastewater containing chlorophenol. Under oxygen sparging, the strong oxidant, hydrogen dioxide, could be in-situ generated through the reduction of oxygen on the surface of the cathode. The removal rate ofchlorophenol could be increased 149% when oxygen was induced in the electrochemical cell. The promotion factor was estimated to be about 82.63% according to the pseudo-first-order reaction rate constant (min^-1). Important operating parameters such as current density, sparged oxygen rate were investigated. Higher sparged oxygen rate could improve the degradation of chlorophenol. To make full use of oxygen, however, sparged oxygen rate of 0.05 m3/h was adopted in this work. Oxidation-reduction potential could remarkably affect the generation of hydrogen peroxide. It was found that the removal rate of chlorophenol was not in direct proportion to the applied current density. The optimum current density was 3.5 mA/cm^2 when initial chlorophenol concentration was 100 mg/L and sparged oxygen rate was 0.05 m^3/h.
