16 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Gram-negative bacilli - Fungi ... (Candida, Aspergillus ... Histoplasma) - Culture ... streptococci - Culture ... Bacteria #Pathogens #Diagnosis
Fungal biomarkers
Beta-d-glucan
Aspergillus galactomannan

By Dr. Sara Dong @swinndong via Febrile [febrilepodcast.com]

#ID  #Infectious Diseases  #Infections
#Differential #Ddx
Beta-d-glucan Aspergillus ... Differential #Ddx #Diagnosis ... #Fungal #Fungi ... galactomannan #Aspergillus ... #Candida #Microbiology
Morphology and Descriptions of Fungal Infections with Hyphae or Pseudohyphae in Tissues
Yeasts with Pseudohyphae: 
 •
Consistent with Candida ... spp. however Aspergillus ... other hyaline fungi ... #differential #diagnosis ... septations #pathology #atlas
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... Tropheryma whipplei, Fungi ... (Aspergillus, Candida ... #differential #diagnosis ... #causes #culture
Fungal Biomarkers: Comparing Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 •
Beta-D-Glucan and Aspergillus ... component of many fungi ... • Pathogens: Candida ... , Aspergillus ... Galactomannan #diagnosis
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
difficile (gut) • Fungi ... : Candida spp. ... (mucosa), Aspergillus ... : Aspergillus spp ... #differential #diagnosis
Morphology and Descriptions of Endemic Fungal Infections with Yeasts in Tissues
Broad-based budding yeasts:
 • Description: Broad-based
other hyaline fungi ... with dematiaceous fungi ... yeasts #fungal #fungi ... #differential #diagnosis ... morphology #pathology #atlas
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Negative Blood Cultures ... antibiotics prior to cultures ... Fungal (Histoplasma/Aspergillus ... patient a surgical candidate ... BloodCultures #Diagnosis
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
fastidious bacteria or fungi ... Tropheryma whipplei, Fungi ... (Aspergillus, Candida ... BCNIE Diagnostic ... #Endocarditis #diagnosis
Morphology and Descriptions of Endemic Fungal Infections with Yeasts in Tissues
Broad-based budding yeasts:
 • Description: Broad-based
Coccidioides spp, Candida ... Cryptococcus, and Aspergillus ... pathology #clinical #atlas ... #fungi #microbiology ... #differential #diagnosis