8 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Tropheryma whipplei, Fungi ... (Aspergillus, Candida ... , these bacteria ... #Causes #differential ... #BCNIE #cardiology
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
bacilli - Fungi ... (Candida, Aspergillus ... bacilli - Fungi ... #Endocarditis #Bacteria ... Pathogens #Diagnosis #Differential
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... or fungi (grows ... (Aspergillus, Candida ... Endocarditis #diagnosis #differential
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Staphylococci (skin), Gram-negative ... : Candida spp. ... (mucosa), Aspergillus ... : Aspergillus spp ... Infections #Timeline #differential
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
component of many fungi ... • Routine use: Candida ... Almost always negative ... Infections with certain bacteria ... in BAL does not differentiate
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... Tropheryma Whipplei • Aspergillus ... Marantic (NTBE) Differential ... • Persistent bacteremia ... diagnosis #management #cardiology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
- Overview and Differential ... Negative: • Bartonella ... Tropheryma Whipplei • Aspergillus ... • Persistent bacteremia ... #Diagnosis #cardiology
Causes of Myocarditis 
1. Infectious Myocarditis
 • Bacterial - Staphylococcus, Streptococcus, Pneumococcus, Meningococcus, Gonococcus, Salmonella, Corynebacterium
Myocarditis • Bacterial ... ) • Fungal - Aspergillus ... , Blastomyces, Candida ... Myocarditis #Causes #differential ... #diagnosis #cardiology