Functional haemodynamic monitoring

Area of Science:

• Critical Care Medicine
• Physiology
• Hemodynamics

Background:

• Functional hemodynamic monitoring evaluates dynamic interactions of hemodynamic variables.
• It assesses the body's response to interventions and physiological challenges.

Purpose of the Study:

• To review the expanding applications and potential of functional hemodynamic monitoring.
• To highlight methods for assessing fluid responsiveness and cardiovascular sufficiency.

Main Methods:

• Utilizing variations in venous return and left ventricular output (e.g., pulse pressure variation, stroke volume variation).
• Employing passive leg raising maneuvers to assess dynamic cardiac output changes.
• Measuring dynamic tissue oxygen saturation (StO2) responses to flow occlusion.

Main Results:

• Predicting fluid responsiveness using markers like pulse pressure variation (PPV) and stroke volume variation (SVV).
• Assessing cardiovascular sufficiency and microcirculatory blood flow with dynamic StO2.
• Identifying patients likely to fail spontaneous breathing trials or requiring urgent interventions.

Conclusions:

• Functional hemodynamic monitoring is a rapidly evolving field with increasing clinical utility.
• These dynamic assessments offer significant potential for optimizing patient resuscitation and therapy.