Do we need new trials of procalcitonin-guided antibiotic therapy?

Abstract:

:Using biomarkers as a guide to tailor the duration of antibiotic treatment in respiratory infections is an attractive hypothesis assessed in several studies. Recent work aiming to summarize the evidence assessed the effect of a procalcitonin (PCT)-guided antibiotic treatment on outcomes in acute lower respiratory tract infections (LRTI), suggesting that significant reductions in antibiotic duration occur when using a PCT-guided algorithm. However, controversial evidence also suggested PCT-guided algorithms were associated with increased antibiotic duration and increased incidence of Clostridium difficile, without any impact on mortality, in real-world settings. So, although using PCT-guided antibiotic stewardship is promising, after more than a decade of randomized controlled trials on this topic the evidence in its favor is still less than compelling due to limitations in trial design, not taking into consideration fundamental aspects of PCT biology, and the absence of evidence-based antimicrobial duration in intervention and control groups. In this commentary we highlight some questions and limitations of primary PCT study data that might impact interpretation and clinical use of PCT at the bedside.

journal_name

Crit Care

authors

Lisboa T,Salluh J,Povoa P

doi

10.1186/s13054-018-1948-6

subject

Has Abstract

pub_date

2018-01-27 00:00:00

pages

17

issue

1

eissn

1364-8535

issn

1466-609X

pii

10.1186/s13054-018-1948-6

journal_volume

22

pub_type

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