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目的:探讨中心静脉导管(Central Venous Catheters, CVC)和经外周静脉植入中心静脉导管(Peripherally Inserted Central Catheter, PICC)在长期入住外科重症监护病房(Surgical Intensive Care Units, SICU)的患者中导管相关血流感染(Catheter-Related Blood Stream Infections, CR-BSI)发生率。方法:随机观察并分析长期入住SICU的90例患者更换抗感染中心静脉导管或P