[Pleural washing with povidone-iodine for treatment of empyema].

In this paper, we report two successful cases of empyema treated by pleural washing with povidone-iodine solution. In these two cases, empyema was caused by secondary infection of multi-drug resistant Pseudomonas aeruginosa. First, we replaced intrathoracic drainage tube and washed intrathoracic space with 500-1000 ml saline containing antibiotics (tobramycin, aztreonam) every 8 hours for 10-14 days. But, cultural studies of pleural effusion were positive even after this treatment. So, we tried pleural washing with warm povidone-iodine solution 1:20 diluted with saline every 8 hours. Surprisingly, after 3 days treatment, cultural studies of the pleural effusion became negative. This pleural washing method with povidone-iodine was very effective for treatment of empyema patients.