Background: Procalcitonin (PCT) has been increasingly used as a biomarker of bacterial infection and as a tool to guide antimicrobial therapy. Despite its increased use, data in patients with solid organ transplants are limited.The study aim is to assess the frequency of rising procalcitonin associated with infectious complications in immunosuppressed living donated liver transplantation.Methods: A single center, retrospective observational study. Preoperative patients' demographic data, operative, anesthetic data and postoperative clinical course are analyzed till discharge from intensive care unit.Results: Sixty patients were classi ed according to the culture results' into a positive culture group & a negative one, then following up sepsis variables in each group. Total leukocyte count (TLC) and procalcitonin (PCT) were high in the positive culture group in the rst 4 and 5 days respectively and was statistically signi cant (P-value < 0.05).PCT at a cutoff value ≥ 9ng/ml had higher speci city, especially on day three postoperative (90.7%). The TLC cutoff value of ≥ 17.3/mm 3 on day one; had the speci city of > 90%.Conclusions: following up PCT level on day one with TLC is essential and will help to detect sepsis and guide early antimicrobial initiation post liver transplantation.

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Background: Procalcitonin (PCT) has been increasingly used as a biomarker of bacterial infection and as a tool to guide antimicrobial therapy. Despite its increased use, data in patients with solid organ transplants are limited. The study aim is to assess the frequency of rising procalcitonin associated with infectious complications in immunosuppressed living donated liver transplantation.Methods: A single center, retrospective observational study. Preoperative patients' demographic data, operative, anesthetic data and postoperative clinical course are analyzed till discharge from intensive care unit.Results: Sixty patients were classified according to the culture results' into a positive culture group & a negative one, then following up sepsis variables in each group. Total leukocyte count (TLC) and procalcitonin (PCT) were high in the positive culture group in the first 4 and 5 days respectively and was statistically significant (P-value < 0.05).PCT at a cutoff value ≥ 9ng/ml had higher specificity, especially on day three postoperative (90.7%). The TLC cutoff value of ≥ 17.3/mm3on day one; had the specificity of > 90%. Conclusions: following up PCT level on day one with TLC is essential and will help to detect sepsis and guide early antimicrobial initiation post liver transplantation.Trial registration: NHTMRI, NCT03389360. Registered 7 February, 2018,https://register.clinicaltrials.gov/prs/app/action/SelectProtocol?sid=S0007O6F&selectaction=Edit&uid=U0003W0U&ts=2&cx=fwyacz

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