Infectious Disease
Expert guidance on antimicrobial stewardship, emerging infections, and complex infectious disease management.
Recent Discussions
Do you routinely recommend diagnostic endoscopy for patients with persistent enterococcus bacteremia despite receiving adequate antimicrobial therapy and no clear nidus?
It depends. Did you do an echocardiogram to rule out endocarditis? Urine cultures were negative? Gallbladder ultrasound was negative? CT of the abdomen and pelvis with contrast was negative?Any other symptomatology that accompanied the recurrent episodes of enterococcus bacteremia that could help us...
In what situations do you recommend secondary prophylaxis for Nocardia after completion of treatment?
I do not recommend routine secondary prophylaxis after completion of treatment for Nocardia infection. While recurrence can occur, particularly in immunocompromised individuals (organ transplant patients), outcomes with repeat treatment are generally favorable. More importantly, there is no strong e...
How do you decide whether to empirically cover Pseudomonas for pneumonia in hospitalized patients?
The decision to empirically cover Pseudomonas aeruginosa in pneumonia among hospitalized patients depends on the pneumonia type (community-acquired pneumonia, CAP vs. hospital-acquired pneumonia, HAP), disease severity, etiology, and specific risk factors. For Community-Acquired Pneumonia (CAP) Pa...
Do you continue PJP prophylaxis indefinitely in patients on rituximab maintenance therapy?
Risk for PJP infection is usually in the context of moderate-high dose corticosteroid therapy or low T cell counts.
How would you manage a patient with viremia up to 400 copies/mL on CAB/RIL injections who was previously undetectable on BIC/FTC/TAF and with prior genotypic testing without drug resistance mutations?
We have definitely seen treatment failure with CAB/RPV, which unfortunately made using both classes of medications impossible. Assuming usual issues of adherence and attending appointments are not issues, I would review the administration technique, particularly if the patient has an elevated BMI or...
What is your preferred laboratory test to assess treatment response or infection resolution in patients with bacterial pneumonia?
I don't generally check a laboratory test to assess resolution. I go more by their improved clinical status and seeing them get back to baseline oxygen status. If I am trending a WBC or procal, I do like to see it trend down, but it's not the only lab I hang my hat on to decide if someone has resolv...
What is your approach to antibiotic selection for bacterial species that demonstrate susceptibility to penicillins or cephalosporins on testing, but are known to harbor inducible AmpC resistance?
I will assess how long I am treating the person/infection, and go from there in terms of how likely I am to induce the AmpC based on the duration of treatment. For example, if it's a 7-day course for UTI or GN bacteremia, I may risk the penicillin/cephalosporin (based on susceptibilities, of course)...
Do you routinely give prophylactic antibiotics prior to ERCP for biliary obstruction in light of recent studies suggesting a reduction of periprocedural infection?
I did not use to give antibiotics routinely prior to ERCP, and it seemed post-ERCP antibiotics were given at the discretion of the advanced endoscopist, but the results of this meta-analysis will likely change my practice so that I'll give all patients a dose of Ceftriaxone prior to the procedure to...
What is your approach to monitoring blood parasite smears in an immunocompetent patient with babesiosis?
In an immunocompetent person the response rate to the treatment of acute babesiosis is extremely high and if a person is clinically improving follow-up smears are probably unnecessary. However, I generally check one at 48 hours to confirm a decrease in parasite burden. If that is favorable and the p...
What minimum inpatient monitoring and discharge criteria should be required after single high-dose liposomal amphotericin B induction for HIV-associated cryptococcal meningitis when the patient has persistent intracranial hypertension requiring serial lumbar punctures?
There are Cryptococcal meningitis guidelines by IDSA with a section devoted to what Dr. @Dr. First Last mentioned (IDsociety.org). I realize that we are getting pressure to think about discharge as soon as every patient is admitted, but this particular patient will need at least two weeks of Amphote...