• Vladimir L Cousin, Kalinka Lambert, Shahar Trabelsi, Annick Galetto-Lacour, Klara M Posfay-Barbe, Barbara E Wildhaber, and Valérie A McLin.
• Pediatric Gastroenterology Unit, University Hospitals Geneva, Rue Willy-Donzé 6, 1211, Geneva, Switzerland. vladimir.cousin@hcuge.ch.
• Bmc Infect Dis. 2017 Feb 15; 17 (1): 149.

BackgroundProcalcitonin (PCT) has become a commonly used serum inflammatory marker. Our aim was to describe the kinetics and usefulness of serial post-operative PCT measurements to detect bacterial infection in a cohort of children immediately after pediatric liver transplantation (pLT).MethodsWe performed a retrospective chart review of a cohort of pLT recipients with serial serum PCT measurements in the first week following pLT. The presence of infection was determined on clinical and biological parameters. Normal PCT was defined as < 0.5 (ng/ml).ResultsThirty-nine patients underwent 41 pLT. PCT was measured daily during the first week post pLT. Values first increased following surgery and then decreased, nearing 0.5 ng/ml at day seven. Peak PCT reached a median of 5.61 ng/ml (IQR 3.83-10.8). Seventeen patients were considered to have an infection. There was no significant difference in daily PCT or peak PCT between infected and non infected patients during the first post-operative week. AUC of ROC curve for PCT during first week was never higher than 0.6.ConclusionsWe conclude that serial PCT measurements during the first week after pLT is not useful to identify patients with bacterial infections. Rather, we propose that serum PCT may be useful after the first week post pLT.

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