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Abstract

BACKGROUND: Airway clearance techniques are regularly proposed as a part of the treatment in chronic obstructive airway diseases. Intrapulmonary percussive ventilation (IPV) is used as an airway clearance technique in patients affected by excessive lung secretions. The aim of this systematic review is to summarize the physiological and clinical effects related to the use of IPV as an airway clearance technique in chronic obstructive airway diseases. METHODS: This systematic review followed the PRISMA guidelines. Randomized, controlled, comparative, and cohort studies investigating IPV as an airway clearance technique were identified and reviewed from 3 databases. Two reviewers independently assessed study quality and reviewed the selected studies. RESULTS: 278 subjects from 12 studies were included in the final analysis, with 3 diseases studied. Only one of the included studies had a sample size > 50 subjects. The main findings showed that IPV improves gas exchange during exacerbation and could reduce the hospital length of stay for patients with COPD. In subjects with cystic fibrosis, neither lung function nor other parameters were improved. CONCLUSIONS: The systematic use of IPV as an airway clearance technique in chronic obstructive airway diseases is not supported by sufficiently strong evidence to recommend routine use in this patient population.

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