Efremov et al developed an equation for estimating the resting energy expenditure (REE) of a patient after cardiopulmonary bypass. The authors are from Research Institute of Circulation Pathology (Novosibirsk) and Novosibirsk State Medical University in Russia.
Patient selection: status post cardiopulmonary bypass
Parameters:
(1) age in years
(2) minute ventilation in liters
(3) body weight in kilograms
(4) mechanical ventilation
(5) therapy with inotropes
Parameter
Finding
Points
age in years
(-8 * (age))
minute ventilation
159 * (minute ventilation)
body weight in kg
13 * (kilograms)
mechanical ventilation
no
0
yes
450
therapy with inotropes
no
0
yes
145
REE in kcal per day =
= SUM(points for all 5 parameters) + 616
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