38 results
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... and sources of infection ... • Native and ... malignancy #Infective ... #Differential #Microbiology
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... - Infective vs ... disease • Systemic infection ... • HACEK • Culture-negative ... #Algorithm #Infective
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Responsible for Infective ... Endocarditis ... Histoplasma) - Culture ... negative #Infective ... #Endocarditis #
Duke's Criteria for Infective Endocarditis
Definite IE - Pathologic Criteria:
 • Pathologic lesions - vegetation or intracardiac
Duke's Criteria for Infective ... Endocarditis Definite ... Immunologic phenomena • Micro ... evidence of active infection ... Duke #criteria #Infective
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
My Patient with Infective ... Endocarditis (IE ... Cultures - Did ... Ahmed_HBabiker #Infective ... #Endocarditis #
Blood culture contaminants
Grouped by gram negative vs gram positive vs other as well as never/maybe/probably
Some additional
Blood culture contaminants ... Grouped by gram negative ... Diseases #Infections ... #Microbiology # ... Micro #Differential
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... negative infective ... endocarditis Bartonella ... #negative #Endocarditis ... InfectiousDiseases #Microbiology
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... Infective Endocarditis ... • Infection with ... special media) • Infection ... #Infective #Endocarditis
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Differentiating NBTE from Infective ... high index of clinical ... Frequent false-negative ... infarcts Features of Infective ... #comparison #infective
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 ... C. canimorsus infection ... infection should