Background: Post-operative infection is a major cause of morbidity and mortality in Liver Transplantation (LT). Early diagnosis and antimicrobial treatment improves outcomes and ruling out sepsis aids immunosuppression decisions. Procalcitonin (PCT) has recently become part of such decision making in COVID-19 pneumonia but its role in LT is not established. We assessed the diagnostic accuracy of PCT as a diagnostic biomarker for infection or sepsis following LT.
Methods: A systematic search was conducted for studies reporting diagnostic performance of PCT for infection/sepsis following LT. Studies were assessed for reporting of diagnostic accuracy, relevance and quality.
Results: Eight studies with 363 participants reported data on the diagnostic accuracy of PCT, with pooled sensitivity, specificity, diagnostic odds ratio and summary receiver operator curve of 70% (95% CI 62-78), 77% (95% CI 73-83), 15.82 (95% CI 5.82-43.12) and 0.871 respectively. There was variability in the timing of sampling (post-operative day 1-8) and range of cut-off values (0.48 to 42.8 ng/mL). Heterogeneity was reduced when only studies with adult LT recipients were considered.
Conclusions: PCT performs moderately well as a diagnostic test for postoperative infection/sepsis following LT. This marker is more suited for use in adult LT populations.
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