Comparison between platelets to lymphocytes ratio, procalcitonin serum level, and SOFA score for outcome prediction in patients with sepsis

Malah, Mohamed; Abusaba, Motaz Amr; Said-Gebaly, Ahmed; El Baradey, Ghada Fouad; Yousef, Naglaa Khalil

doi:TEJA-2024-0031

Comparison between platelets to lymphocytes ratio, procalcitonin serum level, and SOFA score for outcome prediction in patients with sepsis

Authors

TEJA-2024-0031

Abstract

Background
Sepsis is a fatal condition with high treatment costs, early identification of sepsis is mandatory to avoid lethal complications. The objective of this study was to compare the predictive capabilities of platelets to lymphocytes ratio (PLR) and procalcitonin (PCT) in determining the outcome of sepsis.
Methods
This study was a prospective cross-sectional study and fifty-four individuals diagnosed with sepsis were involved. The participants were between the ages of twenty-one and sixty-five and had been admitted to ICU for more than twenty-four hours. The measurement of whole blood count and PCT serum levels was conducted at time of diagnosis, as well as on days three, seven, and fourteen following the onset of sepsis while SOFA score was conducted at time of admission.
Results
There was important elevation in platelet to lymphocytes ratio value and PCT in non survivors group compared to survivors group at day one, three, and seven of diagnosis of sepsis ( value ≤ 0.05), and day fourteen there were no data in non survivors group. The Sequential Organ Failure Assessment (SOFA) score was found to be the most effective in mortality prediction [area under the curve (AUC) = 0.982] second effective was PCT (AUC = 0.977) and PLR was third (AUC = 0.945).
Conclusions
In adult patients diagnosed with sepsis PLR with cutoff value > 228.89 demonstrates efficacy as a reliable prognostic indicator for predicting outcomes in sepsis. Although PLR may have a lower predictive power compared to PCT and SOFA score, it possesses the advantage of being a readily available and cost-effective technology.

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