Bronchiectasis Flashcards
What is bronchiectasis?
Abnormal fixed dilation of the bronchi usually due to fibrous scarring following infection (TB, pneumonia, CF, etc)
Dilated airways accumulated purulent secretions
Bronchiectasis is particularly linked to which conditions?
COPD
Cystic Fibrosis
Pertussis (in childhood)
why are the airways filled with pus in bronchiectasis?
weakened mucociliary clearance
What is the macroscopic appearance of the bronchioles? (In bronchiectasis)
Cystic - clusters of close-ended cysts filled with pus
Cylindrical - tubular appearance
Varicose - indentations (constrictions)
What are symptoms of Bronchiectasis?
Persistent sputum production Chronic infection Recurrent "chest infections" Recurrent antibiotic prescriptions No or short-livedresponse to antibiotics Chest pain Finger clubbing (BUZZ)
Which investigations would be performed to diagnose bronchiectasis?
Chest X-ray
HRCT (High-resolution CT)
What is important to remember when you have a high clinical suspicion of bronchiectasis but can’t diagnose?
That the sinuses are a reservoir of infection
How do you treat bronchiectasis?
Bronchodilators (salbutamol) Corticosteroids Antibiotics (if infection) Mucolytic Stop smoking Postural drainage (twice daily)
What features must be present on HRCT to diagnose bronchiectasis?
Bronchioles >1 cm wide
Bronchioles wider than neighbouring arteriole (BUZZ)
If a bronchiectasis patient is colonised with bacteria; which antibiotics would be given prophylactically?
Nebulised Gentamicin or colomycin
Alternating Oral antibiotics
Pulse IV abx
Which anti-inflammatory treatment reduces exacerbation rates in bronchiectasis?
Low-dose macrolides (Clarithromycin 250 mg OD or Arithromycin 250mg 3/7)