Keck Tilman, Dürr Jochen, Leiacker Richard, Rettinger Gerhard, Rozsasi Ajnacska
ENT Department, University of Ulm, Ulm, Germany.
Laryngoscope. 2005 Mar;115(3):534-7. doi: 10.1097/01.MLG.0000150417.51835.4F.
OBJECTIVE/HYPOTHESIS: Heat and moisture exchangers (HME) are frequently used in the treatment and prevention of tracheobronchial dryness and infections. In this study, the short-term influence of the HME Prim-Air System (Heimomed, Kerpen, Germany) in laryngectomized patients was tested.
Prospective study.
After adaptation to the laboratory environment, tracheal humidity and temperature were measured before HME application, 1 minute after HME application, 10 minutes after HME application, 1 minute after removal of the HME, and 10 minutes after removal of the HME.
When the HME was placed on the tracheal stoma, the end-inspiratory humidity and temperature increased significantly. Ten minutes after commencement of use of the HME, tracheal humidity further increased significantly. Ten minutes after removal of the HME, tracheal humidity and temperature decreased to values as before start of use of HME.
The results indicate that short-term use of the HME Prim-Air system rapidly changes the tracheal climate. The significant increase in tracheal temperature and humidity may have beneficial effects on tracheal dryness in laryngectomized patients.
目的/假设：热湿交换器（HME）常用于治疗和预防气管支气管干燥及感染。在本研究中，测试了HME Prim-Air系统（德国凯尔彭市海莫德公司）对喉切除患者的短期影响。
前瞻性研究。
在适应实验室环境后，于应用HME前、应用HME后1分钟、应用HME后10分钟、移除HME后1分钟以及移除HME后10分钟测量气管湿度和温度。
当HME置于气管造口处时，吸气末湿度和温度显著升高。使用HME开始后10分钟，气管湿度进一步显著升高。移除HME后10分钟，气管湿度和温度降至使用HME前的水平。
结果表明，短期使用HME Prim-Air系统可迅速改变气管环境。气管温度和湿度的显著升高可能对喉切除患者的气管干燥有有益影响。
