Measurement of Pancreatic Stone Protein Compared with C-Reactive Protein and Procalcitonin in the Diagnosis of Sepsis in an Intensive Care Unit: A Systematic Review

Sepsis remains a significant challenge in the intensive care unit (ICU), with prompt diagnosis and management being critical to improving patient outcomes. Biomarkers have emerged as valuable tools for identifying and predicting sepsis outcomes, with pancreatic stone protein (PSP), procalcitonin (PCT) and C-reactive protein (CRP) as three promising candidates. This systematic review aimed to analyse and compare the diagnostic accuracy of PSP, PCT and CRP regarding sepsis in the ICU. A review of the literature on the diagnostic performance of the three biomarkers was performed using PubMed Central, PubMed, ScienceDirect, Oxford Academic, SpringerLink and Cochrane Library. Data regarding the diagnostic accuracy of the three biomarkers were extracted, compared, and represented as the area under the curve (AUC) receiver operating characteristics (ROC). Three studies examining PSP, PCT and CRP biomarkers in 858 adult patients admitted to the ICU were included in this review. Compared with PCT and CRP, the PSP biomarker, with its unique applications and properties that may potentially benefit patients, doctors and hospitals, performed well and proved reliable in diagnosing sepsis in adult patients. PSP demonstrated reliability in sepsis diagnosis. Further analysis should be conducted to establish a formal, appropriate indication, as well as to determine a suspected sepsis patient's condition when testing each biomarker.