Document Detail


Nonpharmacologic airway clearance therapies: ACCP evidence-based clinical practice guidelines.
MedLine Citation:
PMID:  16428718     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Airway clearance may be impaired in disorders associated with abnormal cough mechanics, altered mucus rheology, altered mucociliary clearance, or structural airway defects. A variety of interventions are used to enhance airway clearance with the goal of improving lung mechanics and gas exchange, and preventing atelectasis and infection. METHOD: A formal systematic review of nonpharmacologic protussive therapies was performed and constitutes the basis for this section of the guideline. In addition, the articles reviewed were found using the same methodology but were not limited to those that focused only on cough as a symptom. The MEDLINE database was searched for this review and consisted of studies published in the English language between 1960 and April 2004. The search terms used were "chest physiotherapy," "forced expiratory technique," "positive expiratory pressure," "high frequency chest compression," "insufflation," and "exsufflation." RESULTS: In general, studies of nonpharmacologic methods of improving cough clearance are limited by methodological constraints, and most were conducted only in patients with cystic fibrosis. Chest physiotherapy, including postural drainage, chest wall percussion and vibration, and a forced expiration technique (called huffing), increase airway clearance as assessed by sputum characteristics (ie, volume, weight, and viscosity) and clearance of the radioaerosol from the lung, but the long-term efficacy of these techniques compared with unassisted cough alone is unknown. Other devices that allow patients to achieve the same benefits derived from chest physiotherapy without the assistance of a caregiver appear to be as effective as chest physiotherapy in increasing sputum production. CONCLUSIONS: Some nonpharmacologic therapies are effective in increasing sputum production, but their long-term efficacy in improving outcomes compared with unassisted cough alone is unknown.
Authors:
F Dennis McCool; Mark J Rosen
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Chest     Volume:  129     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-01-23     Completed Date:  2006-02-16     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  United States    
Other Details:
Languages:  eng     Pagination:  250S-259S     Citation Subset:  AIM; IM    
Affiliation:
Department of Pulmonary and Critical Care Medicine, Memorial Hospital of Rhode Island, 111 Brewster St, Pawtucket, RI 02860, USA. F_McCool@brown.edu
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MeSH Terms
Descriptor/Qualifier:
Cough / physiopathology,  therapy*
Drainage, Postural / methods*
Humans
Mucociliary Clearance / physiology
Practice Guidelines as Topic
Respiratory Therapy / methods*
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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