Liver transplantation has been reported to initiate increases in procalcitonin levels, in the absence of bacterial infection. The results of a study investigating the course of procalcitonin levels over several days after liver transplantation in noninfected patients were recently reported in Critical Care. This study shows that procalcitonin levels increase only transiently, immediately after surgery, and thereafter they rapidly decrease. This new information gives us hope that procalcitonin can be used as a marker of bacterial infection in these patients. Further studies of patients undergoing liver transplantation with and without bacterial infection are needed
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