45 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... , Typhoid fever, ... #relative #bradycardia ... #Causes #differential ... #diagnosis #infectiousdiseases
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
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Differential Diagnosis ... • Typhus, gram-negative ... infection • Abscess ... Non-Infectious Causes ... #Differential #Diagnosis
Causes of Nail Clubbing - Mnemonic 
Cyanotic Heart Disease, Cystic Fibrosis
Lung Cancer, Lung abscess 
Ulcerative Colitis
Causes of Nail Clubbing ... Lung Cancer, Lung abscess ... Mesothelioma Infective Endocarditis ... , Idiopathic Pulmonary ... #Diagnosis
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
culture negative ... infective endocarditis ... #differential #diagnosis ... #negative #Endocarditis ... #InfectiousDiseases
Systolic Murmurs - Differential Diagnosis Algorithm
Benign / Flow / Hyperdynamic:
 • Pregnancy
 • Fever
 • Anemia
Supravalvular
- Differential Diagnosis ... Heart Disease Pulmonary ... cardiomyopathy • Pulmonary ... #Differential #Diagnosis ... #Algorithm #causes
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... - Differential Diagnosis ... tuberculosis, Abscess ... , Endocarditis, ... #Differential #Diagnosis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... night sweats, fever ... Cerebral > Splenic, pulmonary ... Septic Emboli Cause ... Treat underlying cause
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
is required for diagnosis ... Clinical features: Fever ... Clinical features: Fever ... in up to 30% of cases ... common, Aortic root abscess
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Causes of Fever ... - Differential Diagnosis ... • Infectious endocarditis ... Osteomyelitis • Occult abscess ... #Algorithm #causes