62 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
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... vs Noninfective Causes ... disease • Systemic infection ... amzn.to/2LmUODZ #Endocarditis ... #Noninfective #Causes
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... and sources of infection ... • Native and ... • Soft tissue infections ... #Sources #Causes
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
: Serial negative ... valves • MRI brain ... in up to 30% of cases ... often seen • MRI brain ... large infarct - Infectious
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
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... Acute: - Primary Neurologic ... demyelination), Infectious ... Neoplasm-related (brain ... Diagnosis #Algorithm #Causes
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Infective Endocarditis ... but important causes ... factors: - Serology ... #Infective #Endocarditis ... differential #workup #infectiousdiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... antibiotics as a cause ... Brain: - Streptococcal ... Dracunculiasis - Non-Infectious ... Differential #Diagnosis #InfectiousDiseases
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Infectious: Legionella ... spotted fever, Non-infectious ... #bradycardia #Causes ... differential #diagnosis #infectiousdiseases
Major Brain Complications of Endocarditis
Abscess:
 • May be macro or micro and occur at site of
Major Brain Complications ... of Endocarditis ... reaction to blood & infectious ... Ischemic stroke caused ... #neurological #neurology