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Lung abscess and surgery for bronchiectasis
A lung abscess usually results from aspiration of oral contents and is first treated with prolonged antibiotics with anaerobic cover — most patients recover without surgery; drainage or resection is kept for failure, a large abscess, massive haemoptysis or suspected tumour; in bronchiectasis surgery suits localised disease causing symptoms despite optimal treatment.
Why it matters in the exam
A lung abscess appears in a patient at risk of aspiration — alcohol, reduced consciousness, swallowing disorders and poor dentition — and so is found in the dependent segments: the posterior segment of the right upper lobe and the superior segment of the lower lobes. It presents with fever, cough with foul sputum and weight loss, and the X-ray shows a cavity with an air-fluid level. The organisms are mainly oral anaerobes, so treatment is amoxicillin with clavulanate or ampicillin with sulbactam (or clindamycin), for several weeks and until clinical and radiological improvement. Bronchoscopy is done when the response is slow, the location is atypical, or in an edentulous patient — because an abscess without a clear reason for aspiration raises suspicion of obstruction by a tumour or foreign body.
Only about 10% of patients need intervention. CT-guided percutaneous drainage suits a patient who is not improving and is unfit for surgery; a large abscess (above 6 cm) is less likely to heal with medical treatment. Surgical resection — usually lobectomy — is for treatment failure, massive haemoptysis, suspected tumour, empyema or bronchopleural fistula. During surgery the opposite lung is protected with a double-lumen tube so pus does not flow into it. In bronchiectasis basic treatment is airway clearance physiotherapy, treatment of exacerbations and prevention; surgery (lobectomy or anatomic segmentectomy) suits disease limited to one or two lobes causing recurrent infection or haemoptysis despite optimal treatment. In aspergilloma with recurrent haemoptysis surgery is the curative treatment, but the risk of complications is high.
Before surgery for bronchiectasis a high-resolution CT confirms the disease is localised, and lung function tests confirm the reserve is adequate.
Key points
- Abscess — anaerobes, dependent segments.
- Antibiotics for several weeks.
- Bronchoscopy to exclude obstruction.
- Surgery in only about 10%.
- Localised bronchiectasis — anatomic resection.
Summary table
| Situation | First treatment | When surgery |
|---|---|---|
| Lung abscess | Antibiotics with anaerobic cover for several weeks | Failure, massive haemoptysis, suspected tumour, empyema |
| Abscess without a reason for aspiration | Bronchoscopy | Obstructing tumour or foreign body |
| Abscess in a patient unfit for surgery | Percutaneous drainage | — |
| Localised bronchiectasis | Airway clearance physiotherapy and prevention | Symptoms or haemoptysis despite treatment |
| Aspergilloma | Observation | Recurrent haemoptysis |
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Sources
- BTS Guideline for Bronchiectasis in Adults, 2019 — Surgery and management of complications
- ERS guidelines for the management of adult bronchiectasis, 2017 — Recommendations
- Shields' General Thoracic Surgery, 8th edition (2019) — Lung abscess and surgery for suppurative lung disease
Sources are given for further reading; the text is written afresh and not copied from them.
Reviewed by the Examqo AI Professor · 2026-11-06. The text may contain errors; when in doubt, check the source.