10 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Responsible for Infective ... Endocarditis ... Gram-negative bacilli - Fungi ... Gram-negative bacilli - Fungi ... #Differential #InfectiousDiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... • HACEK • Culture-negative ... Gram-negative bacilli • Fungi ... Gram-negative bacilli • Fungi ... #Algorithm #Infective
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... infective endocarditis ... Tropheryma whipplei, Fungi ... #Endocarditis # ... InfectiousDiseases
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
My Patient with Infective ... Endocarditis (IE ... therapy - Number one cause ... Fungal (Histoplasma ... Diagnosis #Management #Algorithm
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Infective Endocarditis ... fastidious bacteria or fungi ... but important causes ... Tropheryma whipplei, Fungi ... bacteria) and 18S ( fungi
Soil Related Infections - Differential Diagnosis Framework

Mechanism Of Infection:
 • Wound
 • GI: Ingestion, MUD, Contaminated
include: bacteria, fungi ... • Chlorella Fungi ... Soil-related endemic fungi ... cause primary pulmonary ... aspergillosis (cough, dyspnea
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
• Confirmed by culture ... Diagnosis: • Culture ... arthritis, and endocarditis ... positive blood cultures ... ) #Mycoses #InfectiousDiseases
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
heart failure • Dyspnea ... Cerebral > Splenic, Pulmonary ... Septic emboli cause ... Treat underlying cause ... Diagnosis #cardiology #infectiousdiseases
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
infections are caused ... presentations: • Pulmonary ... Endophthalmitis, Endocarditis ... Management #treatment #fungal ... #infectiousdiseases
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... pain, hemoptysis, dyspnea ... • Sputum/Blood cultures ... Prevotella • Fungal ... Lung #Abscess #pulmonary