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Virtus
Metabolic
Monitor

Simple and Cost Efficient Indirect Calorimetry

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Virtus Metabolic Monitor allows continuous and non-invasive measurement of oxygen consumption (VO₂) and carbon dioxide production (VCO₂), plus calculation of respiratory quotient (RQ) and energy expenditure (EE) for mechanically ventilated patients

Clinical values using the Virtus Metabolic Monitor

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Detect changes in patients metabolic status

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Helps to define sufficient oxygen delivery for ventilated patients

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Measurements of energy expenditure and respiratory quotient to avoid under- or over-nutrition (adequate nutrition) - see note

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Support weaning process as changes in V̇O₂ may indicate work of breathing

Note:

  • "In critically ill mechanically ventilated patients, REE should be determined by using indirect calorimetry" ESPEN guidelines on clinical nutrition in the intensive care unit. Singer P, et al. Clinical Nutrition. 2018

  • "Personalized nutrition therapy in critical care: 10 expert recommendations". Wischmeyer et al. Critical Care (2023) 27:261

Simple and easy-to-use design

Virtus Monitor is simple, easy-to-use and cost efficient, compared to similar technologies and monitors on the market today

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Provides for an easy and fast set-up without any calibrations needed before measurement, which makes it immediately operational when needed.

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Is mobile and has an exceedingly small footprint, which makes it easy to switch between patients. Brings flexibility and cost efficacy to the treatment.

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Presents all respiratory parameters on a single screen, which makes the diagnosing of changes fast and easy and enables the clinicians to observe and identify changes in patient’s metabolic status.

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Is battery powered for up to 3 hours of full operation, which makes operation hassle free and easy to switch between patients

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter

Has no built-in short term use sensors, which makes operation and cost of maintenance low compared to monitors using galvanic O₂ sensors

Metabolic Measurement, Indirect Calorimetry, VO2 measurement, VCO2 measurement, Energy Expenditure, Resting Energy Expenditure, RQ, gas exchange measurement, bed side, ventilation, intensive care unit, metabolism, weirs formula, oxygen consumption, carbon dioxide production, non-invasive measurement, metabolic status, over and under feeding, nutrition planning, oxygen delivery, weaning process, respiratory parameter
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The Bland Altman plots for EE of relative agreement, shows that Virtus MetabolicMonitor can accurately determine EE compared with another

Indirect Calorimetry Monitor, for the range (0-7200kcal/day) investigated.

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