Stenotrophomonas maltophilia right‐sided endocarditis in an adult patient with uncorrected congenital heart disease

• Stenotrophomonas maltophilia is a Gram negative, low virulence, one of the leading multiple-drug-resistant pathogen and quite often causes nosocomial infection. • Bacteremia with Stenotrophomonas maltophilia has higher mortality than Pseudomonas aeruginosa. • Stenotrophomonas maltophilia endocarditis is too scarce, however, it accompanied with high rates of mortality and morbidity. • Acute bacterial endocarditis due to Stenotrophomonas maltophilia can occur even in patients with uncorrected congenital heart disease and lack of immune deficiency, therefore. clinicians should be aware.