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Objectives To develop a population pharmacokinetics model for cefpirome in ICU patients, to assess pharmacokinetic-pharmacodynamic profiles
vs. MIC distribution of likely ICU pathogens, and to assess their expected cumulative fraction of response (CFR).
Design and setting Prospective observational study in a multidisciplinary ICU.
Measurements and results Twelve patients received 2 g cefpirome intravenously over 12 h. Thirteen blood samples were taken on two occasions. Demographic
and creatinine clearance data were collected. Based on the final covariate model obtained using NONMEM, Monte Carlo simulations
were undertaken to simulate free-drug concentrations for two administration methods: intermittent bolus administration (IBA)
and continuous infusion (CI) with a loading dose of 0.5 g. Concentration-time profiles were evaluated by the probability of
achieving free-drug concentrations above the MIC for more than 65% of dosing interval. Using MIC distributions from the EUCAST
programme the CFR for each method was evaluated. A three-compartment model with zero-order input best described the concentration-time
data. The CFR for Escherichia coli and Klebsiella spp. was greater than 97% in all IBA and CI doses but for Pseudomonas aeruginosa, and Acinetobacter spp. achieved target concentrations of 56% and 46%, respectively. High-dose CI cefpirome (6 g/day) for P. aeruginosa and Acinetobacter spp. was required to achieve CFR of 89%.
Conclusion Measured creatinine clearance appears to be a good marker of cefpirome clearance and potentially could be used to individualise
cefpirome therapy. When given as IBA or CI for E. coli and Klebsiella spp., cefpirome should be successful. Cefpirome fails to achieve the bactericidal target even when administered at high-doses
such as 6 g/day for P. aeruginosa and Acinetobacter spp. Prospective clinical studies are needed to conclusively validate these findings. 相似文献
56.
目的 探讨危重患者急性期禁食、全胃肠外营养 (TPN)治疗后血清瘦素的表达 ,以及营养评价指标对营养支持的作用。方法 用放射免疫法测定危重病患者血清瘦素 ,同时检测相关营养评价指标。结果 危重病患者急性期瘦素变化不明显 ,TPN治疗后迅速上升 ,第 3天达高峰 ,治疗后 5d仍高于正常。两组血浆纤维蛋白原、白蛋白、总胆固醇、甘油三脂、血淋巴细胞计数差异均无显著性意义 ,P >0 0 5。结论 危重病患者急性期禁食血清瘦素无显著性改变 ,但对TPN治疗反应迅速 ,血清瘦素有可能用来作为危重病患者急性期营养评价指标。血浆纤维蛋白原、白蛋白、总胆固醇、甘油三脂、淋巴细胞计数对危重病患者急性期营养状况无评价性作用。 相似文献
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The purpose of this review is to explore the interactive influences of maltreatment and disabilities on children's development, and to provide practical suggestions about what may be done to optimize developmental outcomes. The review briefly describes maltreatment in the general population, noting incidence, proportions of children experiencing different types of maltreatment, and special risk for very young children. The disproportionate vulnerability of children with developmental disabilities is discussed, with emphasis on risk factors for maltreatment. The high incidence of developmental disabilities in maltreated children and reasons for it are described. Studies documenting the developmental consequences of abuse and neglect are reviewed. Specific recommendations, based on review of maltreatment and disability literature, include recognizing subtle forms of maltreatment; routinely screening for developmental problems; referring children for comprehensive multidisciplinary evaluation; identifying caregiver competency; gaining familiarity with intervention resources; and monitoring children's progress with directive guidance. 相似文献
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儿童意外伤害的特点及预防 总被引:1,自引:0,他引:1
综述了儿童意外伤害发生类型、特点、影响因素,并提出了相应的预防策略。 相似文献
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Modern intensive care medicine requires a multidisciplinary approach to look after critically ill patients. Dedicated critical care units offer a variety of facilities to monitor and support organ functions, allowing diagnosis and treatment of life-threatening conditions in a controlled environment. This article describes the main principles of intensive care medicine, giving an overview of a systematic approach to assessment and treatment of organ dysfunction, and highlights some of the complex ethical and organizational challenges. 相似文献