BRONCHIECSTASIS Flashcards
Define bronchiecstasis
Lung airway disease characterised by chronic bronchial dilation, impaired mucociliary clearance and frequent bacterial infections
Aetiology of bronchiecstasis
Chronic lung inflammation leads to fibrosis and permanent dilation of the bronchi
This leads to pooling of mucus, which predisposes to further CYCLES of infection, damage
and fibrosis of bronchial walls
Causes of bronchiecstasis
Idiopathic (50%)
Post-infectious (e.g. pneumonia, whooping cough, TB)
Host-defence defects (e.g. Kartagener’s syndrome, cystic fibrosis)
Obstruction of bronchi (e.g. foreign body, enlarged lymph nodes)
GORD
Inflammatory disorders (e.g. rheumatoid arthritis)
Summarise the epidemiology of bronchiectasis
Most often arises initially in CHILDHOOD
Incidence has decreased with the use of antibiotics 1/1000 per year
Recognise the presenting symptoms of bronchiectasis
Productive cough with purulent sputum or haemoptysis
Breathlessness
Chest pain
Malaise
Fever
Weight loss
Symptoms usually begin AFTER an acute respiratory illness
Recognise the signs of bronchiectasis on physical examination
Clubbing
Coarse crepitations (usually at lung bases) - These shift with coughing
Wheeze
LIST 4 appropriate investigations for bronchiectasis
Sputum cultures and sensitivity
CXR
High-Resolution CT
Bronchography
Findings on CXR for bronchiecstasis
Dilated bronchi (may be seen as parallel lines going
from the hilum to the diaphragm (tramline
shadows))**BUZZ
Fibrosis
Atelectasis
Pneumonic consolidations
May be NORMAL
Which is the best diagnostic method for bronchiecstasis?
High-Resolution CT
Findings on CT for bronchiecstasis
Dilated bronchi with thickened walls
Generate a management plan for bronchiectasis
Treat acute exacerbations with TWO IV ANTIBIOTICS, which cover Pseudomonas aeruginosa
Prophylactic antibiotics should be considered in patients with frequent exacerbations (> 3/year)
Inhaled Corticosteroids (e.g. fluticasone) - reduces inflammation and volume of sputum but does NOT affect the frequency of exacerbations or lung function
Bronchodilators - considered in patients with responsive disease
Maintain hydration
Flu vaccination
Physiotherapy -enables sputum and mucus clearance. This can reduce frequency of
acute exacerbations and aid recovery
Bronchial artery embolisation - if life-threatening haemoptysis due to bronchiectasis
Surgical - localised resection, lung or heart-lung transplantation
Which organisms are commonly found in sputum cultures of bronchiecstasis?
Pseudomonas aeruginosa Haemophilus influenzae Staphylococcus aureus Streptococcus pneumoniae Klebsiella Mycobacteria
Identify the possible complications of bronchiectasis
Life-threatening haemoptysis Persistent infections Empyema Respiratory failure Cor pulmonale Multi-organ abscesses
Summarise the prognosis for patients with bronchiectasis
Most patients continue to have symptoms after 10 years