Why Measure Blood Volumes?

COstatus^® provides a group of blood volume parameters to:

• Quantitatively assess hypervolemic (wet) vs. hypovolemic (dry) conditions;
• Identify responders vs. non-responders;
• Assess preload and afterload.

COstatus^® measures the following blood volumes:

Total End Diastolic Volume (TEDV)

Total End Diastolic Volume is the amount of blood volume in the four chambers of the heart at the end of diastole.

Central Blood Volume (CBV)

Central Blood Volume is the amount of blood volume in the heart, lungs, and large arterial blood vessels.

Active Circulation Volume (ACV)

Active Circulation Volume is the amount of blood volume that immediately supports CO through quick multiple recirculations through the heart, lungs and other low resistance organs such as the brain, liver, kidney etc. It is calculated as the volume of blood in which the indicator mixes during the first minute after injection.

Blood Volume References:

Comparison of cardiac output and blood volumes in intrathoracic compartments measured by ultrasound dilution and transpulmonary thermodilution methods. (CO-8011V)

Central Blood Volume Index (CBVI) and Total End Diastolic Volume Index (TEDVI) as an Indicator of Cardiac Preload. (CO-8044A) CO-8068AH

Active Circulation Volume (ACV) as an Indicator of Volumetric Afterload in Pediatric Patients. (CO-8067A)
 
Comparison of Venofundin Vs. Gelofusine Influence on Hemodynamic Parameters in Post Cardiac Surgery Patients. (CO-7682A)

Quantitative criteria for assessment of hemorrhage using blood volumes measured by ultrasound dilution method. (CO-7500)