针对感染因素采取有效措施，如手术中严格无菌操作、术后保持引流管通畅、合理使用抗生素等，对控制和降低医院感染的发生有重要意义。
Some measures, for example, intra-operative aseptic operation, postoperative drainage tube unblocked and rational use of antibiotics, are important to control nosocomial infection.
保持各管道通畅，观察各引流管引流情况。
The state of patients' illness and drainage of each tube were carefully observed.
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