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重症治疗机构中限制抗生素治疗持续时间对抗生素耐药性的影响
The effect of limiting antimicrobial therapy duration on antimicrobial resistance in the critical care setting
Marra AR, de Almeida SM, Correa L  2009/10/16 10:07:44 
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Am J Infect Control, 2009,
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Background:
Using antimicrobial agents for prolonged periods of time and/or in heavy densities is known to contribute to antimicrobial resistance.

Methods:
A quasiexperimental, before and after study to limit the duration of antimicrobial therapy to 14 days was conducted in a medical-surgical intensive care unit (ICU). An intervention to optimize antimicrobial therapy was performed when antimicrobial agents had been prescribed for more than 14 days. We then compared antimicrobial utilization using the defined daily dose (DDD) per 1000 patient-days, as well as resistance rates in selected organisms in the intervention phase to the previous 10-month period.

Results:
In the intervention phase, doctors approved to discontinue the antimicrobial therapy before 14 days in 89.8% (415/462) of the prescribed antibiotics in the ICU. Comparing the 2 time periods, we found a reduction in carbapenems (24.5% decrease), vancomycin (14.3% decrease), and cephalosporins (12.2% decrease) in the intervention phase. Imipenem resistance decreased in Acinetobacter baumannii from 88.5% to 20.0% (P≤.001) and in Klebsiella pneumoniae from 54.5% to 10.7% (P=.01).

Conclusion:
These results suggest that an intervention to reduce the duration of antimicrobial therapy contributed to more rational use of antimicrobial agents and to the reduction of bacterial resistance in the critical care setting.
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甲状腺功能亢进合并黄疸

 王燕燕 王曙

上海交通大学附属瑞金医院内分泌科

患者，女，69岁。2009年1月无明显诱因下出现乏力，当时程度较轻，未予以重视。2009年3月患者乏力症状加重，尿色逐渐加深，大便习惯改变，颜色变淡。4月18日入我院感染科治疗，诉轻度头晕、心慌，体重减轻10kg。无肝区疼痛，无发热，无腹痛、腹泻、腹胀、里急后重，无恶性、呕吐等。入院半月前于外院就诊，查肝功能：ALT 601IU/L，AST 785IU/L，TBIL 97.7umol/L，白蛋白 41g/L，甲状腺功能：游离T3 30.6pmol/L，游离T4 51.9pmol/L，心电图示快速房颤。
 

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