Abstract
Introduction: Comamonas testosteroni is a gram-negative bacillus which commonly occurs in various environments worldwide. Comamonas testosteroni is rarely recognized as a human pathogen. The case we report is the first Comamonas testosteroni endocarditis in Turkey and the fourth case in the world. Case Presentation: A 51-year-old male patient with a history of chest pain, dyspnea, and tachycardia was admitted to our hospital. Coronary angiography and echocardiography results revealed mobile lesions and plaques in aortic valve. Cardiovascular surgery was performed; aortic valve vegetation was detected and the aortic valve was excised. Aerobic culture was studied. After the biochemical identification tests and the use of VITEK-2 Compact (Biomerieux, France) automated microbial identification system, pathogenic bacteria was identified as Comamonas testosteroni. The patient who had no risk factors was diagnosed with endocarditis and treated with Ciprofloxacin. The case recovered from Comamonas testosteroni infection. Conclusion: There has been an increase in bacterial infections caused by Comamonas testosteroni and antibiotic resistance of the bacteria. For this reason, Comamonas testosteroni infections have increasingly become important. There have only been four cases from Turkey so far. This paper also examines the other cases in the literature as a whole.
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