Tissue saturation measurement--exciting prospects, but standardisation and reference data still needed.

Area of Science:

• Physiology
• Biomedical Engineering
• Critical Care Medicine

Background:

• Sepsis and shock cause microcirculatory dysfunction and altered tissue oxygen utilization, often missed by global hemodynamic monitoring.
• Near-infrared spectroscopy (NIRS) offers a method to measure tissue oxygen saturation (StO2), reflecting local microvascular and mitochondrial function.

Discussion:

• Integrating StO2 measurements into goal-directed therapy could enhance hemodynamic resuscitation strategies.
• NIRS provides insights into macro- and microcirculatory responses during shock states.
• Addressing key methodological factors is crucial for the widespread clinical adoption of NIRS in shock management.

Key Insights:

• NIRS-derived StO2 measurements can reveal microcirculatory derangements in sepsis and shock.
• This approach complements traditional hemodynamic monitoring by assessing local tissue oxygenation.
• Potential exists for improved patient outcomes through integrated resuscitation targets.

Outlook:

• Further research is needed to standardize NIRS protocols and validate its clinical utility in diverse shock conditions.
• Development of robust analytical methods for NIRS data is essential for reliable interpretation.
• NIRS may become a valuable tool for personalized hemodynamic management in critical care settings.