17 results
HACEK is the acronym commonly used to describe and help doctors to remember a group of
fastidious Gram-negative ... which can also cause ... is caused by HACEK ... is caused by Alpha-haemolytic ... #Diagnosis #InfectiousDiseases
Point-of-care Ultrasound for Diagnosis of Abscess in Skin and Soft Tissue Infections

1. POCUS is more accurate
POCUS is more accurate ... than physical exam ... cellulitis in cases ... POCUS has a negative ... Accuracy #Diagnosis #Exam
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
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
on histologic exam ... serology: Serial negative ... Frequent false-negative ... in up to 30% of cases ... common, Aortic root abscess
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... antibiotics as a cause ... #Abscess #Differential ... #Diagnosis #InfectiousDiseases
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 ... Assess for MR when ... Chordae #Tendineae #POCUS
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... Septic Emboli Cause ... Treat underlying cause ... annular or aortic abscess ... Complications: Abscess
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Alpha-hemolytic, Catalase Negative ... • Most common cause ... media • Important cause ... Diagnosis: • Physical Exam ... , CXR, ENT exam,
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
• Typhus, gram-negative ... infection • Abscess ... Non-Infectious Causes ... • Hepatic abscess ... Liver or lung abscess
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
aureus, Coagulase-negative ... staphylococci Culture Negative ... Septic emboli cause ... Treat underlying cause ... Diagnosis #cardiology #infectiousdiseases