Sputum-guided Treatment With Comprehensive Care Management in COPD - A Randomized-controlled Trial

Those in the intervention group will have their treatment determined by the presence and type of airway inflammation whether during AECOPD or as part of clinic optimization. Corticosteroids are given for airway eosinophilia (sputum eosinophils \>3%), and antibiotics for airway neutrophilia (sputum neutrophils ≥65% and total cells \>10 million cells/gram) or a positive sputum culture. Specialized stains to identify aspiration (Oil Red O; (3)) and left ventricular dysfunction (Perl's Prussian blue; (4)) will guide swallowing assessment and cardiac work-up, respectively. If a sputum sample is not produced as an outpatient spontaneously, then sputum induction will be pursued 8 weeks after discharge. If there are no sputum samples to guide inhaler regimen, then it will be determined by the study physician guided by the Canadian Thoracic Society guidelines (2) if a sputum-guided regimen has not already been established.

As per previous, this group will receive three follow-up visits with study pulmonologist and clinic personnel interventions.