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The value of early CT in complicated childhood pneumonia
Anne P Tan Kendrick1, Ho Ling, Ramnath Subramaniam
1Department of Diagnostic Imaging, Kandang Kerbau Women's and Children's Hospital, 100 Buki Timah Road, 229899 Singapore. annetan@kkh.com.sg
Insights
Computed tomography (CT) is superior to chest radiography (CXR) for diagnosing complicated childhood pneumonia when initial imaging is inconclusive. CT aids in identifying complications that may necessitate early surgical intervention.
Area of Science:
- Pediatric Pulmonology
- Diagnostic Imaging
- Thoracic Surgery
Background:
- Community-acquired pneumonia in children can lead to severe complications.
- Chest radiography (CXR) may be insufficient for evaluating complicated pneumonia.
- Early diagnosis of complications is crucial for effective intervention.
Purpose of the Study:
- To evaluate the diagnostic value of computed tomography (CT) in pediatric complicated pneumonia.
- To assess the role of CT in guiding early surgical intervention when CXR is non-contributory.
Main Methods:
- A study involving 42 immunocompetent children (1-11 years) with complicated pneumonia.
- Simultaneous contrast-enhanced CT scans and chest radiographs were performed.
- CT was utilized when patients remained unwell despite standard treatment and non-contributory CXR findings.
Main Results:
- CT demonstrated superior accuracy over CXR in detecting lobar involvement, chest tube placement, fluid loculation, abscess formation, and bronchopleural fistulae.
- CXR failed to assess key parenchymal and pleural complications like cavitary necrosis, early abscesses, empyemas, and pericardial effusions.
- CT findings guided surgical intervention (VATS) in 16 patients, including pleural decortication and lung resection, with good correlation between CT and surgical findings.
Conclusions:
- CT significantly outperforms CXR in identifying pleural and parenchymal complications in childhood pneumonia.
- CT imaging is essential for timely diagnosis and management of complicated pediatric pneumonia.
- Early surgical intervention, guided by CT, can be critical for favorable outcomes in severe cases.
Objective:
To investigate the value of CT in complicated childhood pneumonia and its role in early intervention when chest radiography (CXR) is non-contributory.
Materials And Methods:
Forty-two immunocompetent children, aged 1-11 years, admitted for community-acquired pneumonia from October 1997 to September 1999, had 42 contrast-enhanced CT scans and frontal chest radiographs on the same day, which were assessed independently. CT was performed when the patient remained unwell and the CXR images showed failure of resolution despite 7-10 days of antibiotics and/or drainage with urokinase therapy.
Results:
Compared to CT, CXR revealed suboptimal accuracy rates of lobar involvement (84%), chest tube placement (73%), fluid loculation (42%), abscess formation (40%) and bronchopleural fistulae (33%). It could not assess parenchymal or pleural complications such as cavitary necrosis, early abscess formation, empyemas or pericardial effusions. On the basis of the CT findings and poor clinical progress, 16 patients underwent surgical intervention with the aid of video-assisted thorascopic surgery (VATS). The CT features correlated well with surgical findings. Ten cases required pleural decortication while six with destructive or necrotic lung lesions had surgical resection. Debridement was difficult when the pleura had become thick and fibrotic. Streptococcus pneumoniae was the offending organism in 81% of cases. The right side was affected in 67% of cases.
Conclusions:
In complicated childhood pneumonia, CT is far superior to CXR in revealing pleural and parenchymal complications, which may require early surgical intervention.
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