Abstract: ［Abstract］Objective To explore the effect of 3M liquid dressing on prevention of contact dermatitis in PICC patients with evidence-based nursing. Methods Forty PICC patients admitted to hospital from January to June 2018 were selected as control group， and routine PICC maintenance was performed. 40 PICC patients admitted to hospital from July to December 2018 as observation group.After disinfection by routine method， we apply a layer of 3M liquid dressing. After drying， apply aseptic transparent dressing， maintain it every seven days， and replace the bleeding fluid in time. The incidence of contact dermatitis， the frequency of dressing change and the maintenance cost were compared between the two groups. Results There were 1 case of dermatitis （mild） in the observation group and 11 cases of dermatitis in the control group （8 cases of mild dermatitis， 2 cases of moderate dermatitis and 1 case of severe dermatitis）. There was a significant difference in the incidence of mild and moderate dermatitis （P < 0.05）. The maintenance times and total maintenance cost of PICC in the observation group were lower than those in the control group （P < 0.05）. Conclusion The use of 3M liquid dressing can reduce the incidence of contact dermatitis， improve the comfort of patients with PICC， reduce the expense， reduce the workload of nurses changing dressing， and effectively improve the clinical outcome of patients.

Key words: 3M liquid dressing, PICC, maintenance cost, contact dermatitis, evidence-based nursing

摘要： 目的 运用循证护理的方法，探讨应用3M液体敷料对PICC置管患者预防接触性皮炎的效果。方法 将2018年1月~6月入院的40例PICC置管患者作为对照组，常规PICC维护。2018年7月~12月入院的40例PICC置管患者作为观察组。在常规方法消毒后，涂一层3M液体敷料，待干后，再贴无菌透明敷料，每七天维护一次，有渗血渗液及时更换。比较两组患者接触性皮炎发生率、换药次数及维护费用。结果 观察组发生皮炎例1例（为轻度），对照组发生皮炎11例（轻度皮炎8例、中度2例、重度1例），轻、中度皮炎发生率差异有统计学意义（P<0.05）。观察组PICC维护次数和总的维护费用均低于对照组，差异有统计学意义（P<0.05）。结论 3M液体敷料的使用能降低PICC患者接触性皮炎的发生率，提高患者带管过程中的舒适度，减少费用支出，减少护士换药工作量，有效改善患者临床结局。

关键词: 3M液体敷料, PICC, 接触性皮炎, 维护费用, 循证护理