Comparison of a Hyperinflation Mode and Air Stacking on Neuromuscular Patients Under Volumetric Ventilation

Comparison of a Hyperinflation Mode and Air Stacking on Neuromuscular Patients Under Volumetric Ventilation

The purpose of the study is to compare the the efficacy and tolerance of 2 cough assistance techniques requiring no equipment other than the volumetric fan. The two methods are air-stacking and hyperinflation .

The study is a Cross-over, monocentric and open label study

Primary outcome : Peak Expiratory Flow (PEF)

Inclusion Criteria:

• age>18 years, neuromuscular disease,
• restrictive syndrome and/or cough peak flow < 270.l/mn and/or maximal expiratory pressure < 40 cm HO2,
• patient under non invasive ventilation
• steady state for at least one month
• written consent form given

Exclusion Criteria:

• bronchial congestion
• hemodynamic instability
• previous pneumothorax or emphysema bubbles
• Major bulbar dysfunction
• plan of legal protection
• pregnant or breastfeeding women
• no affiliation to a social security scheme