4 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... classically listed under BCNIE ... #Causes #differential ... #culture #negative ... #Microbiology #CNIE
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... (BCNIE) Definition ... Etiologies - "True" BCNIE ... but important causes ... BCNIE Diagnostic
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... Septic Emboli Cause ... Marantic (NTBE) Differential ... Paradoxical emboli via ASD ... • Persistent bacteremia
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... Negative: • Bartonella ... Septic emboli cause ... • Persistent bacteremia ... #Differential #