Biomarkers for the Early Diagnosis of Sepsis in Burns: Systematic Review and Meta-analysis

Andrew Li, Anthony Moussa, Eduardo Gus, Eldho Paul, Erwin Yii, Lorena Romero, Caleb Lin, Alexander Angelo Padiglione, Cheng Hean Lo, Heather Cleland, Allen C. Cheng

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

Objective:The aim of this study was to evaluate the diagnostic performance of all biomarkers studied to date for the early diagnosis of sepsis in hospitalized patients with burns.Background:Early clinical diagnosis of sepsis in burns patients is notoriously difficult due to the hypermetabolic nature of thermal injury. A considerable variety of biomarkers have been proposed as potentially useful adjuncts to assist with making a timely and accurate diagnosis.Methods:We searched Medline, Embase, Cochrane CENTRAL, Biosis Previews, Web of Science, and Medline In-Process to February 2020. We included diagnostic studies involving burns patients that assessed biomarkers against a reference sepsis definition of positive blood cultures or a combination of microbiologically proven infection with systemic inflammation and/or organ dysfunction. Pooled measures of diagnostic accuracy were derived for each biomarker using bivariate random-effects meta-analysis.Results:We included 28 studies evaluating 57 different biomarkers and incorporating 1517 participants. Procalcitonin was moderately sensitive (73%) and specific (75%) for sepsis in patients with burns. C-reactive protein was highly sensitive (86%) but poorly specific (54%). White blood cell count had poor sensitivity (47%) and moderate specificity (65%). All other biomarkers had insufficient studies to include in a meta-analysis, however brain natriuretic peptide, stroke volume index, tumor necrosis factor (TNF)-alpha, and cell-free DNA (on day 14 post-injury) showed the most promise in single studies. There was moderate to significant heterogeneity reflecting different study populations, sepsis definitions and test thresholds.Conclusions:The most widely studied biomarkers are poorly predictive for sepsis in burns patients. Brain natriuretic peptide, stroke volume index, TNF-alpha, and cell-free DNA showed promise in single studies and should be further evaluated. A standardized approach to the evaluation of diagnostic markers (including time of sampling, cut-offs, and outcomes) would be useful.

Original languageEnglish
Pages (from-to)654-662
Number of pages9
JournalAnnals of Surgery
Volume275
Issue number4
DOIs
Publication statusPublished - Apr 2022

Keywords

  • burns
  • diagnosis
  • meta-analysis
  • sepsis
  • systematic review

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