BACKGROUND: Parapneumonic effusions and empyema are side effects of pneumonia that cause significant morbidity and mortality. Current guidelines recommend drainage of these effusions with tube thoracostomy or surgical debridement in addition to systemic antibiotics. This case series examines the technique to maximize drainage of complicated parapneumonic effusions (cPPE) through tube thoracostomy by instilling tissue plasminogen activator (tPA)/ deoxyribonuclease (DNase) tPA and DNase into the pleural cavity in a community hospital setting.
METHODS: We retrospectively reviewed all patients admitted to Erlanger hospital in Chattanooga from Jan 2010 to April 2015 who presented with cPPE and were treated with intrapleural medications to increase drainage. Data was collected, tabulated, and summarized with mean (standard deviation)or frequencies as appropriate.
RESULTS: We reviewed 9 cases; 6 women and 3 men (age range: 44 to 86 years). In total, there were 6 patients with empyema and 3 patients with cPPE. The decrease in size of the pleural effusion was seen qualitatively on CXR, and quantitatively, the output from the chest tube after the tPA and DNase treatment. The decrease in chest tube output ranged from 2-4 L. Of the 6 patients who had empyema, 4 required surgical lung decortication. The 3 patients with cPPE were managed with medical therapy and had adequate clinical improvement. The average hospital stay was 16.1 days.
CONCLUSION: In this small series, the intrapleural tPA and DNase was effective in reducing the size of pleural effusion as well as reducing the rate of surgical consultation.