Cardiac power output (CPO) and cardiac power index (CPI) are measures of cardiac pumping.
Parameters:
(1) mean arterial pressure in mm Hg
(2) cardiac output in liters per minute
(3) body surface area in square meters
cardiac power output in Watts =
= (mean arterial blood pressure) * (cardiac output) / 451
cardiac power index in Watts per meter-squared =
= (cardiac power output) / (body surface area in square meters)
