Intrinsic PEEP and Laryngeal Aperture in COPD
Conditions
- Chronic Obstructive Pulmonary Disease
Interventions
- PROCEDURE: Oesophageal balloon to measure intra-thoracic pressure
- PROCEDURE: Fibre-optic laryngoscopy
- OTHER: standard lung function tests
- PROCEDURE: face mask CPAP
- PROCEDURE: variation of mouth pressure with CPAP
- OTHER: facemask pneumotachograph
Sponsor
Royal Brompton & Harefield NHS Foundation Trust