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Do bullae indicate a predisposition to recurrent pneumothorax?
H J Smit1, M A Wienk, A J Schreurs
1Department of Pulmonary Medicine, University Hospital, Vrije Universiteit, Amsterdam, The Netherlands.
The British Journal of Radiology
|June 9, 2000
Summary
Idiopathic spontaneous pneumothorax (ISP) is often linked to bullae and blebs. However, CT scans show these findings are common in first and recurrent ISP, and their location doesn't predict recurrence.
Area of Science:
- Pulmonology
- Thoracic Surgery
- Radiology
Background:
- Idiopathic spontaneous pneumothorax (ISP) is frequently associated with visible parenchymal bullae and blebs.
- The direct causal link between blebs/bullae and ISP remains debated.
- Surgical resection is typically reserved for cases with a high risk of pneumothorax recurrence.
Purpose of the Study:
- To analyze the prevalence and distribution of bullae in patients with ISP.
- To determine if bullae presence or characteristics predict pneumothorax recurrence.
- To evaluate the indication for surgical resection based on CT findings.
Main Methods:
- Computed tomography (CT) scans of 101 patients with ISP were retrospectively analyzed.
- The presence and distribution of bullae were documented.
- Findings were correlated with the occurrence of first and recurrent pneumothorax.
Main Results:
- CT scans revealed bullae in 56% of first ISP cases and 64% of recurrent ISP cases.
- Bullae were more common in older patients.
- Only 8 patients had bullae exceeding 2 cm on the affected side.
- Bullae location did not predict pneumothorax recurrence.
Conclusions:
- Bullae are frequently observed in both initial and recurrent idiopathic spontaneous pneumothorax.
- The presence and location of bullae on CT do not reliably predict pneumothorax recurrence.
- Surgical intervention should be carefully considered, as bullae alone may not necessitate resection.