When community-acquired pneumonia is suspected to involve aspiration, the clinical question is whether and how empiric treatment should differ from standard CAP management. Evidence-based guidance for this specific scenario in adults (age 18 years or older) is outlined below.
Adult patient (age 18 years or older) presenting with community-acquired pneumonia and suspected aspiration pneumonia.
Suspected aspiration is a meaningful clinical consideration in CAP, particularly when deciding how to structure empiric antimicrobial coverage. The evidence base for this scenario specifically addresses whether routine modifications to standard CAP therapy are indicated.
Management is grounded in standard empiric CAP treatment. Whether additional coverage should be considered — and under which specific clinical circumstances — is addressed by the protocol. Not all patients with suspected aspiration require the same empiric approach.
The complete evidence-based decision criteria, including any conditional modifications, are available in the full structured regimen.
DOI: 10.1164/rccm.201908-1581ST
We suggest not routinely adding anaerobic coverage for suspected aspiration pneumonia unless lung abscess or empyema is suspected (conditional recommendation, very low quality of evidence).
With increasing rates of C. difficile infections (frequently associated with use of clindamycin), the question of adding empiric anaerobic coverage (clindamycin or b-lactam/b-lactamase inhibitors) in addition to routine CAP treatment in patients with suspected aspiration is an important one.
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