15 results
ID Ddx: Diarrhea in a transplant recipient
- Bacterial: C.diff, Campy, Salmonella, Aeromonas, E.coli
- Viral: CMV, noro,
ID Ddx: Diarrhea ... in a transplant ... recipient - Bacterial ... Diagnosis #Diarrhea #Transplant ... #TxID #SOT #Causes
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Transplant Infections ... : • Common bacteria ... Staphylococci (skin), Gram-negative ... Staphylococci (skin), Gram-negative ... differential #diagnosis #causes
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... Alpha-hemolytic, Catalase Negative ... • Most common cause ... media • Important cause ... Pneumoniae #strep #microbiology
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Management Algorithm in Transplant ... Patients First Tier Microbiologic-Testing ... Bacterial culture ... Breath test for bacterial ... above testing negative
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... under BCNIE, these bacteria ... #culture #negative ... InfectiousDiseases #Microbiology
Infective endocarditis - etiology and sources of infection. 
 • Native and prosthetic 
valve endocarditis
 •
• Native and ... Endocarditis #Sources #Causes ... #Bacteria #Etiology ... #Differential #Microbiology
Timeline of infections after solid organ transplantation can roughly be broken up into three time periods:
>6-12 mo from transplant ... febrilepodcast.com] #ID ... Ddx #Diagnosis #Transplant ... #TxID #SOT #Comparison ... #Microbiology
General Bacterial Antibiogram - Antibiotics and Spectrum of Coverage
Make sure you consult your local antibiogram!
VRE -
General Bacterial ... POSITIVES - GRAM NEGATIVES ... #Antibiotics #Classes ... #Bacterial #Spectrum ... #Pharmacology #Microbiology
Solid Organ Transplant - Diarrhea - Diagnostic and Workup Algorithm
1st Tier Microbiologic Testing: CDiff (stool), CMV
Solid Organ Transplant ... Algorithm 1st Tier Microbiologic ... pathogens 2nd Tier Microbiologic ... overgrowth If above negative ... malabsorption #Diarrhea #Transplant
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
Features of Non-Bacterial ... serology: Serial negative ... Frequent false-negative ... in up to 30% of cases ... #Endocarditis #comparison