High Frequency Chest Wall Oscillation for Airway Clearance in People with Cystic Fibrosis

Monday, 30 July 2012

Yueh-Chu Peng, RN
Department of Nursing, Taichung Veterans General Hospital, Taichung, Taiwan

Learning Objective 1: The learner will be able to know the effect of high frequency chest wall oscillation(HFCWO) for airway clearance in people with cystic fibrosis.

Learning Objective 2: The learner will be able to know which one is better comparing HFCWO and conventional chest physiotherapy in people with cystic fibrosis.

Airway clearance is very important for cystic fibrosis because these patients often have lung infections by excess mucus in the lungs. Conventional chest physiotherapy (CCPT; also known as manual percussion and postural drainage) is the standard of airway clearance methods. CCPT is labour-intensive and time consuming. This method need have qualified chest physiotherapists. Cystic fibrosis patients can't use as frequent as they want in hospital. Therefore, another attractive airway clearance device, high frequency chest wall oscillation (HFCWO), is producing. The article compared HFCWO and conventional chest physiotherapy, which one is effective for airway clearance?
First, we used "cystic fibrosis" AND "high frequency chest wall oscillation" as key words to search all related studies in empirical databases. Then, using an appraisal tool to appraised the selected four articles. Finally, using Review Manager 5 to do meta-analysis. Outcome indicators were the amount of dry sputum weight and wet sputum weight in one week and two week. All of results were shown no significant difference between the two groups. We did not find any evidence that HFCWO was better than conventional chest physiotherapy in the included trials. More adequately-powered long-term randomised controlled trials are necessary. Thererfore, health providetrs should consider the needs of their patients and recommend the most suitable method of airway clearance for the individual