Bronchiectasis Flashcards
Definition of bronchiectasis
The permanent abnormal dilation of the bronchi within one or both lungs. Extra mucus pools within these areas of dilation. This leaves the individual more prone to infection. It has similar symptoms to COPD but does not always show as obstructive so cannot be classified as COPS
Pathology of bronchiectasis
IT IS A CYCLE
1- Impaired mucociliary performance leads to the accumulation of secretions
2- the accumulation of secretions leads to bacterial infections
3- Bacterial infections to lead increased mucus, inflammatory response and reduced ciliary performance
4- excessive inflammatory response leads to tissue damage
5- tissue damage leads to bronchi dilation, loss of ciliated epithelium, and impaired mucociliary performance
Possible causes of bronchiectasis (7)
- idiopathic
- infection, most common in childhood
- CF
- Immunodeficient
- ciliary dysfunction
- inflammatory disorder
- obstruction
3 types of bronchiectasis
1: saccular: large bronchi dilated like a balloon
2: cylindrical: medium bronchi dilated in a symmetrical fashion
3: varicose: dilations and constrictions deform the bronchi
Clinical features of bronchiectasis
- persistent cough/sputum
- wheeze
- chest pain
- chronic sinusitis
- recurrent exacerbations
- haemoptysis
Symptoms of acute exacerbation (6)
- increase cough
- increased sputum
- increased temperature >38
- increased wheeze/changes to breath sounds
- XRAY consistent with changes
- general malaise