57 results
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... (IE) Has Negative ... cause of culture negative ... #Infective #Endocarditis ... #Diagnosis #Management
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Alpha-hemolytic, Catalase Negative ... peritonitis, and endocarditis ... Diagnosis: • Physical ... CXR, ENT exam, CT ... #management
Endocarditis checklist
Initial evaluation
 • Peripheral blood cultures (three sets at three different sites)
 • Additional culture
TEE) • Chest CT ... w/ septic pulmonary ... • Aggressive management ... #criticalcare #diagnosis ... #management
Candidemia Workup and Management - IDSA Guidelines
1) Antibiotics
 • Empiric: Echinocandins (e.g. micafungin) for most patients
Candidemia Workup and Management ... Susceptibilities, Negative ... Complications • Ocular ... week to assess ocular ... clinical concern for endocarditis
Complications of Staph Aureus Bacteremia
 • CNS Infections
 • Septic pulmonary embolism (0.9% - 18.8%)
 •
Infections • Septic pulmonary ... ) • Infective endocarditis ... - Native valve ... arthritis - Native ... Complications #diagnosis
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Cryoglobulinemia, Endocarditis ... With associated pulmonary ... Pauci-immune mediated (Negative ... #differential #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal ... Differential Diagnosis ... polyangiitis) - ANCA-negative ... resolution chest CT ... #differential #diagnosis
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... infections according to CT-scan ... Varicella–Zoster virus NODULAR ... #Patterns #Pulmonary ... #Differential #Diagnosis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Coagulase-negative ... Cerebral > Splenic, pulmonary ... Differential Diagnosis ... Diagnosis? ... #diagnosis #management
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... - Differential Diagnosis ... Low Attenuation Nodular ... HighRes #Chest #CT ... #pulmonary #radiology