Bronchiectasis and Lung Abscess Flashcards

(47 cards)

1
Q

Define bronchiectasis

A

It is a chronic disease characterised by irreversible dilation of bronchi caused by bronchial wall damage resulting from infection and inflammation.

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2
Q

What are the morphological changes usually accompanied by

A

Chronic suppurative lung disease with a cough productive purulent sputum

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3
Q

describe the inflammatory response in bronchiectasis

A

ineffective in eradicating infection and a persistent cycle of chronic infection and inflammation ensues resulting in further tissue damage

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4
Q

What leads to an accumulation of secretions

A

Impaired mucociliary clearance

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5
Q

What predispose to bacterial infection

A

Accumulated secretions

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6
Q

What does infection provoke

A

An inflammatory response - increased mucus production and impaired ciliary function

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7
Q

What causes tissue damage

A

Excessive inflammation

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8
Q

What produces dilation of bronchi and disruption of mucociliary clearance

A

Damage to the bronchial wall

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9
Q

What are the most common causes of bronchial wall damage and bronchiectasis

A

Severe infections

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10
Q

What two causes are declining due to childhood vaccination

A

Pertussis (whooping cough) and measles

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11
Q

What is still a common cause of bronchiectasis in developing countries

A

TB

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12
Q

In children what might give rise to bronchial obstruction and distal bronchiectasis

A

Inhalation of a foreign body

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13
Q

What should all patients with bronchiectasis have measured

A

Immunoglobulins IgG, IgA and IgM with serum electrophoresis

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14
Q

What should all patients with bronchiectasis have measured

A

Immunoglobulins IgG, IgA and IgM with serum electrophoresis

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15
Q

What is an aspergilloma

A

A ball of fungal hyphae that appear on Xray as a mass in the centre of a cavity surrounded by a halo of radiolucency

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16
Q

What gives rise to fleeting Xray shadows

A

Eosinophilic infiltrates in the lung

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17
Q

Define primary ciliary dyskinesia

A

An autosomal recessive condition in which there is an abnormality of the ultrastructure of cilia throughout the body such that they do not beat in a coordinated fashion

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18
Q

What is Kartagener’s syndrome

A

Ciliary dyskinesia with situs inversus

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19
Q

How is the definitive test for primary ciliary dyskinesia performed

A

Brush biopsy of nasal mucosa

20
Q

When does cystic fibrosis usually present

A

In early childhood with recurrent respiratory infections and failure to thrive due to pancreatic insufficiency

21
Q

name some of the diseases which seem to have an increased incidence of bronchiectasis

A

Rheymatoid arthritis
Ulcerative colitis
Crohn’s disease
Coeliac disease

22
Q

What is the cardinal feature of bronchiectasis

A

Chronic cough productive of copious purulent sputum

23
Q

Infective exacerbation of bronchiectasis may be associated with what

A

Fever and pleuritic pain

24
Q

chronic severe bronchiectasis may cause what 3 things

A

Malaise
weight loss and
halitosis (foul breath)

25
What is sometimes present
Clubbing
26
What can be heard over affected areas
Coarse crackles
27
What is the gold standard investigation for bronchiectasis
CT scan
28
What should be performed to define what infective organisms are present as a guide for antibiotic treatment
Sputum microbiology
29
What help to determine whether bronchodilator drugs may be helpful
Lung function tests
30
What an effective treatment in clearing secretions
Chest physiotherapy
31
What is sometimes useful in improving sputum clearance
Nebulised hypertonic saline
32
What are antibiotics used for
To suppress chronic infection and to treat exacerbations
33
When are bronchodilator drug and an inhaled steroid indicated
Where there is associated reversible airways obstruction
34
what is a potential treatment for the few patients who have localised disease and troublesome symptoms
Surgical excision
35
Where bronchiectasis has progressed to respiratory failure, what is an option
Lung transplantation
36
WHat is a lung abscess
A localised collection of pus within a cavitated necrotic lesion in the lung parenchyma
37
What does a patient with a lung abscess typically complain of
A cough with expectoration of large amount of foul material often accompanied by haemoptysis, fever, weight loss and malaise
38
What may be required to distinguish between a lung abscess and other causes of cavitating lung lesions
A fine -needle aspiration of the lesion
39
What is the most common cause of a lung abscess
Oropharyngeal aspiration
40
What is the most common cause of a lung abscess
Oropharyngeal aspiration
41
What is a key aspect of treatment with lung abscesses
Drainage of pus from the abscess cavity
42
How is drainage achieved
Bronchial drainage using postural drainage physiotherapy or | percutaneous drainage by positioning a catheter drainage tube under radiological guidance
43
What is necrobacillosis
An unusual cause of lung abscess that is associated with a very characteristic clinical picture first described by Limiere
44
What are lung abscesses with necrobacillosis frequently involved with
Multiple abscesses forming often with a pleural empyema and evidence of infection elsewhere
45
What is bronchopulmonary sequestration
A congenital anomaly in which an area of lung is not connected to the bronchial tree and has an anomalous blood supply usually from the aorta
46
What is required to treat bronchopulmonary sequestration
Surgical resection
47
What are the 4 treatment methods for bronchiectasis
Chest physio Antibiotics Inhaled bronchodilators Specific treatment of any underlying cause