26 results
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... • Native and ... prosthetic valve endocarditis ... #Sources #Causes ... #Differential #Microbiology
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... infective endocarditis ... #culture #negative ... #Endocarditis # ... InfectiousDiseases #Microbiology
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... • Most common cause ... media • Important cause ... peritonitis, and endocarditis
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
high index of clinical ... serology: Serial negative ... Frequent false-negative ... in up to 30% of cases ... #comparison #infective
Ruptured Chordae Tendineae on POCUS Echocardiogram
 
Many underlying causes, not limited to: MVP, subacute endocarditis, connective
Chordae Tendineae on POCUS ... Many underlying causes ... MVP, subacute endocarditis ... Chordae #Tendineae #POCUS ... Echocardiogram #Ultrasound #Clinical
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... positive in 90% of IE cases ... • Coagulase-negative ... Septic Emboli Cause ... Treat underlying cause
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... Infective Endocarditis ... antimicrobials, clinical ... but important causes ... #Infective #Endocarditis
Point-of-care Ultrasound for Diagnosis of Abscess in Skin and Soft Tissue Infections

1. POCUS is more accurate
POCUS is more accurate ... cellulitis in cases ... abscess is not clinically ... POCUS has a negative ... PratsEM #Abscess #POCUS
What's the Dx?
• 29-year-old male 
• Transfer community hospital 
• Hypotension
• Renal failure
• Altered mental status.
Using IV heroin • Negative ... vegetation secondary to endocarditis ... #Clinical #POCUS ... PLAX #Infective #Endocarditis
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
dogs & latter can cause ... fastidious gram-negative ... bacillus cause ... to meningitis, endocarditis ... #dermatology #clinical