Bronchiectasis Flashcards
Bronchiecstasis
Chronic lung disease, characterised by:
- irreversibly dilated bronchi
- bronchial inflammation and infection
Rare compared with diseases like COPD and asthma
Main causes of bronchiecstasis
- idiopathic
- post-infection
- immunodeficiency
- COPD
- connective tissue disease
- yellow nail syndrome
Pathophysiology of bronchiectasis
Can be:
- localised (one lobule)
- generalised (multiple lobules)
Coles ‘vicious cycle hypothesis’:
1. poor mucociliary clearance
2. microorganism colonisation and infection
3. chronic inflammation
4. dilation and thickening of bronchi
5. bronchial wall oedema, increased mucous production
6. further infections
7. further inflammation and damage
Clinical features of bronchiectasis
- persistent productive cough
- daily sputum production
- haemoptysis
- recurrent chest infections
- rhinosinusitis symptoms (e.g. congestion)
- dyspnoea
- chest pain
- GORD
Respiratory findings in bronchiectasis
- crackles
- wheeze
- finger clubbing
Investigations in bronchiectasis
- sputum culture (haemophilus influenzae, pseudomonas aeruginosa)
- chest x-ray
- post-bronchodilator spirometry
- high resolution CT
Bronchiectasis differentials
- COPD
- asthma
- lung cancer
- tuberculosis
Managing bronchiectasis
- airway clearance techniques
- pulmonary rehabilitation
- antibiotics (via sputum sample)
- SABA
- surgical management (e.g. lung resections or transplant)
Complications of bronchiectasis
- respiratory failure
- pulmonary infections
- haemoptysis
- pulmonary hypertension/cor pulmonale