ICU 'Magic Numbers': The Role of Biomarkers in Supporting Clinical Decision-Making

Area of Science:

• Critical Care Medicine
• Clinical Diagnostics
• Biomarker Analysis

Background:

• Critical care medicine presents complex diagnostic and therapeutic challenges.
• Biomarkers are essential tools for identifying and managing clinical problems in critically ill patients.
• Effective biomarker utilization enhances clinical decision-making and patient outcomes.

Purpose of the Study:

• To review a curated selection of clinically relevant biomarkers in critical care.
• To emphasize the importance of understanding biomarker strengths and limitations.
• To advocate for the integration of biomarkers into multimodal approaches for improved patient care.

Main Methods:

• This narrative review focuses on a selected set of biomarkers.
• Key biomarkers discussed include neuron-specific enolase (NSE), procalcitonin (PCT), NT-proBNP, serum creatinine (SCr), and prealbumin.
• The review synthesizes existing knowledge on their clinical utility and reliability.

Main Results:

• Neuron-specific enolase (NSE) aids in predicting outcomes for out-of-hospital cardiac arrest (OHCA).
• Procalcitonin (PCT) levels correlate strongly with bacterial infections.
• NT-proBNP indicates cardiac stress, serum creatinine (SCr) is crucial for renal diagnostics, and prealbumin differentiates metabolic states.

Conclusions:

• A thorough understanding of individual biomarker properties is essential for accurate diagnosis and treatment.
• Selected biomarkers offer reliable guidance for critical care decisions.
• Integrating biomarkers into multimodal strategies can further enhance clinical management and patient outcomes in critical care settings.