29 results
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
Infective endocarditis ... • Native and ... prosthetic valve endocarditis ... #Infective #Endocarditis ... #Differential #Microbiology
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... peritonitis, and endocarditis ... Pneumoniae #strep #microbiology ... #diagnosis #management
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... infective endocarditis ... causes #culture #negative ... #Endocarditis # ... InfectiousDiseases #Microbiology
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
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
from Infective Endocarditis ... serology: Serial negative ... Frequent false-negative ... cultures/serology: + (Negative ... #comparison #infective
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... 13%), Pneumonia, Endocarditis ... fusiform gram-negative ... Capnocytophaga #canimorsus #microbiology ... infectiousdiseases #diagnosis #management
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Endocarditis Summary ... Hypercoagulable (APLAS) Microbiology ... • Coagulase-negative ... #Endocarditis ... #diagnosis #management
Syphilis - Diagnosis and Management - Primary vs Secondary vs Tertiary
Primary Syphilis
 • Localized lymphadenopathy
 •
Diagnosis and Management ... 30-40%) - Negative ... Secondary #Tertiary #Comparison ... #Diagnosis #Management
Candidemia Workup and Management - IDSA Guidelines
1) Antibiotics
 • Empiric: Echinocandins (e.g. micafungin) for most patients
Candidemia Workup and Management ... Susceptibilities, Negative ... clinical concern for endocarditis ... IDSA #Guidelines #Management
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup and Management ... Patients First Tier Microbiologic-Testing ... pathogens First Tier Microbiologic-Testing ... above testing negative ... Diarrhea #Workup #Management