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Pulmonary Scintigraphic Patterns of Empyema following Pneumonia after Completely Clinical Recovery in Pediatrics

By Yu-wen Chen, Ya-wen Chuang, Chien-chin Hsu, Zen-kong Dai and Jing-ren Wu


Background: In this study, we enrolled pediatric cases with history of pneumonia, resulting in empyema and evaluated the pulmonary function based on the ventilation and perfusion scintigraphy after complete clinical recovery. Methods: During 8 years period, twelve children (5 males and 7 females, aged 2- to 14-year-old with the medium of 6-year-old) presenting with unilateral empyema following pneumonia were enrolled. Standard procedures of 99m Tc-DTPA aerosol ventilation and 99m Tc-MAA perfusion scintigraphy were performed in followup. Results: The scintigraphy revealed pathophysiological presentation of ventilation-perfusion (V/Q) matched or mismatched defects in the lung after critical disease process. V/Q matched defect, corresponding with prior pneumonia patch was a typical pattern at beginning after recovery. However, V/Q mismatched defect always resulted from the progressive repaired ventilation lesion via a period of time, except certain irreversible disease process. Conclusion: We consider that the ventilation-perfusion (V-P) scan is a high sensitive method to evaluate the pathophysiology of pulmonary functional status and has a value to become a follow-up procedure after recover

Year: 2014
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