8 results
Duke's Criteria for Infective Endocarditis
Definite IE - Pathologic Criteria:
 • Pathologic lesions - vegetation or intracardiac
for Infective Endocarditis ... demonstrating active endocarditis ... major clinical criteria ... Immunologic phenomena • Micro ... #Infective #Endocarditis
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... endocarditis Bartonella ... #negative #Endocarditis ... InfectiousDiseases #Microbiology ... #CNIE #BCNIE #cardiology
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... 13%), Pneumonia, Endocarditis ... microorganism (Culture ... fusiform gram-negative ... #canimorsus #microbiology
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
Capnocytophaga spp ... anaerobe; narrow Gram negative ... richdavisphd #Capnocytophaga ... #Smear #clinical ... #microscopy #microbiology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... • Coagulase-negative ... -> TEE • Duke Criteria ... diagnosis #management #cardiology
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
fastidious gram-negative ... to meningitis, endocarditis ... Myocarditis & culture-negative ... is difficult to culture ... #dermatology #clinical
Diagnosing Brucellosis
Epidemiological Exposures
- Endemic Regions
- Clinical Micro Lab Technicians
- Animal/Vaccine Exposure: Vets, Slaughterhouse workers, hunters
- Unpasteurized
Endemic Regions - Clinical ... Micro Lab Technicians ... Transaminitis - Radiology ... Diagnostics: Culture ... Brucellosis #Diagnosis #Criteria
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Hypercoagulable (APLAS) Microbiology ... aureus, Coagulase-negative ... Negative: • Bartonella ... → TEE • Duke Criteria ... Differential #Diagnosis #cardiology