护理研究Issue(7)：798-801,4.DOI:10.3969/j.issn.10096493.2015.07.010
双伺服性加温控制型呼吸湿化器的应用对呼吸道与呼吸机回路细菌定植的影响
Influence of application of dual servo heated control respiratory humidifier on bacterial colonization in airway and ventilator circuits
摘要
Abstract
Objective:To analyze the influence of dual servo heated control respiratory humidifier on airway and ventilator circuits bacterial colonization,and to provide references for standardizing the replacement cycle of ventilator tube and preventing ventilator associated pneumonia.Methods:A total of 106 patients with artificial airway undergoing mechanical ventilation over 72 hours were selected in ICU.All patients used dual servo heat-ed control respiratory humidifier.Sputum were collected immediately on the day of establishment of artificial airways,and on day 3,day 7,day 10,day 14,day 21,day 28.Sampling sites were patient’s pharyngeal larynx, lower respiratory tract,ventilator connector end,ventilator tube suction side,end expiratory ventilator tube and wet fluid in humidifier tank.Bacteria culture,the number of colonies and pathogens separated were carried out for sample specimens.Then to compare the positive rate and colonization rate of pathogenic bacteria at different time and in different positions.Results:Colonization of ventilator tube has homology with respiratory patho-gens.Respiratory pathogens detection rate among different parts at the same sampling time was statistically sig-nificant(P <0.05).The pathogen detection rate of ventilator tube in the same part at different sampling time was not statistically significant(P >0.05).Conclusion:The dual servo heated control respiratory humidifier was used up to 28 days.Respiratory bacteria colonization increases with mechanical ventilation time prolonged.And the colonization in ventilator tube system didn’t significantly increase with the increase of duration of mechani-cal ventilation.Continued use of a dual servo heated control respiratory humidifier without pollution situation is safe.For long term ventilator patients without conventional ventilator tube replacement for pollution or faulty ventilator tube should be replaced.关键词
气道湿化/湿化器/呼吸机管道/细菌定植/呼吸道/呼吸机相关性肺炎Key words
airway humidification/humidifier/ventilator tube/bacteria colonization/respiratory tract/ventilator associated pneumonia分类
医药卫生引用本文复制引用
蓝惠兰,王媚,谭杏飞,陈萍云,唐桂平,梁大连,陈瀚熙,张秀浓,陈丽芳,廖游玩..双伺服性加温控制型呼吸湿化器的应用对呼吸道与呼吸机回路细菌定植的影响[J].护理研究,2015,(7):798-801,4.基金项目
广东省科技厅支持立项项目,编号:2011B031800068。 （）
