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COPD (Emphysema (Definition (Irreverisble, Enlargement, Distal to terminal…
COPD
Emphysema
Definition
Irreverisble
Enlargement
Distal to terminal bronchiole
Wall destruction
Non-fibrotic
Pathogenesis
Toxins/cigarette smoke
Lung inflammation
Protease release
Lung damage
Loss of elastin
Loss of elastic recoi
l
Airway collapse on expiration
Narrowed bronchial lumen
Goblet cell hyperplasia
Inflammatory infiltrates
Thickening of bronchial wall with smooth muscle hypertrophy
Oxidative stress
#
Clinical course
Sx
Weight loss
Dyspnoea
Cough
Wheeze
Clinical presentation
Barrel chested
Prolonged expiration vs inspiration
Hunched over tripod position
Pursed lip breathing
Chronic Bronchitis
Management