3078 results
HACEK is the acronym commonly used to describe and help doctors to remember a group of
which can also cause ... infective endocarditis ... is caused by HACEK ... bacteria. ... is caused by Alpha-haemolytic
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... prosthetic valve endocarditis ... #Infective #Endocarditis ... #Sources #Causes ... #Bacteria #Etiology
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
• Most common cause ... media • Important cause ... peritonitis, and endocarditis ... patients with bacteremia ... Meningitis 10-14 days, Endocarditis
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... negative infective endocarditis ... under BCNIE, these bacteria ... febrilepodcast] #BCNIE #Causes ... culture #negative #Endocarditis
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... therapy - Number one cause ... have a fastidious bacteria ... #Infective #Endocarditis
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... Bug: Atypical bacteria ... Aggressive: MRSA bacteremia ... lines, osteo, endocarditis
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Culture-Negative Infective Endocarditis ... recovery rate of bacteria ... intra-cellular bacteria ... but important causes ... Negative #Infective #Endocarditis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Endocarditis Summary ... positive in 90% of IE cases ... Septic Emboli Cause ... Treat underlying cause ... • Persistent bacteremia
Differential Diagnosis for Concurrent Brain and Lung Infections
 • Bacteria: Strep anginosus, Staph aureus, Klebsiella pneumoniae
Infections • Bacteria ... phenomena from endocarditis ... Differential #Diagnosis #causes
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Lung Lesions • Bacteria ... phenomena from endocarditis ... Differential #Diagnosis #causes