8 results
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
Regurgitation Primary ... ), Spontaneous rupture ... infarction, Tendineae rupture ... Papillary muscle rupture ... #causes #primary
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... therapy - Number one cause ... of culture negative ... #Diagnosis #Management ... #Algorithm
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... under BCNIE, these bacteria ... identified with modern culture ... #differential # ... #culture #negative
Systolic Murmurs - Differential Diagnosis Algorithm
Benign / Flow / Hyperdynamic:
 • Pregnancy
 • Fever
 • Anemia
Supravalvular
Diagnosis Algorithm ... Chordae Tendinae • Rupture ... • Infarct • Rupture ... Systolic #Murmurs #Cardiology ... #causes
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Culture (+): ... • Coagulase-negative ... staphylococci Culture ... #diagnosis #management ... #cardiology
Causes of Primary and Functional Mitral Regurgitation (MR) 
Causes of primary mitral regurgitation
 - Rheumatic heart
Causes of Primary ... Infective/marantic endocarditis ... MV chordae may rupture ... #Causes #Primary ... #Diagnosis #Cardiology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... Culture Positive ... staphylococci Culture ... • Persistent bacteremia ... Diagnosis #cardiology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
can present with primarily ... in 60%-90% • Culture ... in 70%-85% • Negative ... Monocytogenes or gram negative ... by CSF or urine culture