Recovery from Pseudomonas putida sepsis in a 91-year-old man : A case report

publisher[Abstract] Pseudomonas putida is a gram-negative rod-shaped bacterium widely distributed in water networks. It is not an unusual cause of sepsis in immunocompromised hosts. However, few cases in adult patients have been reported and clinical courses of bacteremia with Pseudomonas putida have not been reported in aged patients either suffering from a malignant disease or under immunosuppressive treatment. We report a 91-year-old man who survived an episode of sepsis caused by Pseudomonas putida after recovery from aspiration pneumonia. The intramuscular injection of amikacin and nutritional support were successful despite the presence of multiple-drug resistant bacteremia. This is the first clinical case report of new quinolone-resistant P. putida. This case suggests that aged patients may develop an opportunistic infection as do immunocompromised hosts