[Oxygen reserve index: a new parameter for oxygen therapy]

Area of Science:

• Physiology
• Medical Devices
• Clinical Monitoring

Context:

• Continuous, real-time oxygenation monitoring is crucial in diverse clinical settings.
• Existing methods may have limitations in accurately assessing oxygenation status.
• The need for advanced, noninvasive tools to guide oxygen therapy is increasing.

Purpose:

• To introduce and explain the Oxygen Reserve Index (ORI) as a novel dimensionless parameter for oxygenation monitoring.
• To highlight the potential of ORI, when combined with pulse oximetry, in optimizing inspired oxygen concentrations.
• To emphasize the importance of understanding ORI's capabilities and limitations for effective clinical application.

Summary:

• The Oxygen Reserve Index (ORI) is a new, dimensionless index (0-1) for noninvasive, real-time, continuous oxygenation monitoring, correlating with arterial partial pressure of oxygen (100-200 mmHg).
• ORI, alongside pulse oximetry, can assist in precise adjustment of inspired oxygen, thereby preventing both hyperoxemia and hypoxemia.
• ORI is applicable across various clinical scenarios, necessitating proper understanding and application by healthcare professionals for patient oxygenation assessment, while acknowledging its limitations.

Impact:

• Facilitates more accurate and proactive oxygen management in clinical practice.
• Potentially reduces complications associated with both insufficient and excessive oxygen administration.
• Empowers medical staff with an advanced tool for improved patient care and outcomes related to oxygenation.