culture-negative endocarditis


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culture-negative endocarditis

Cardiology Endocarditis in which a causative microorganism are not identified

culture-negative endocarditis

Infective endocarditis produced by organisms that do not quickly or readily grow in blood cultures, usually because their growth is masked by the previous use of antibiotics or because the causative organisms require special culture media or grow slowly in the laboratory. Mycoplasma, Ricksettsia, HACEK (an acronym for Haemophilus, Actinobacillus, Cardiobacterium, Eikenella, Kingella) organisms, and some fungi produce culture-negative endocarditis.
See: infective endocarditis
See also: endocarditis
References in periodicals archive ?
Demographic and clinical features of patients with blood culture-negative endocarditis included in the study.
Serological tests often give an indication of the likely pathogen in culture-negative endocarditis.
We have previously reported on the impact of prior antibiotic use in culture-negative endocarditis.
Chronic Q fever might manifest months to years after initial infection, most commonly as a culture-negative endocarditis (7-9).
arupensis as an agent of blood culture-negative endocarditis in a human.
whipplei infections and blood culture-negative endocarditis (2,5,6).
This case reinforces the hypothesis that any Bartonella species can cause human infection, including culture-negative endocarditis.
Clinical findings and causative agent for 9 patients with blood culture-negative endocarditis, India, August 2005-December 2006 * Patient Underlying cardiac age, y/sex condition 25/F Right atrium fistula 46/M Rheumatic heart disease 14/M Rheumatic heart disease 13/M Rheumatic heart disease 28/M Bicuspid aortic valve disease 30/M Rheumatic heart disease 50/F Rheumatic heart disease 40/M Bicuspid aortic valve disease 40/M Double chamber right ventricle and subaortic perimembranous ventricular septal defect Patient IgG titer to age, y/sex Echocardiographic findings Bartonella spp.
The rate of blood culture-negative endocarditis in Algeria is as high as 76% (2), which leads to difficulty in antimicrobial treatment.
Culture-negative endocarditis is implicated in 6% of cases of infective endocarditis in HIV-infected patients.

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