Ask for advice: what is the pressure-corrected heart rate, what is the formula [ask for advice], and how to calculate it? thank you

Pressure-adjusted heart rate (PAR) = heart rate * (right atrial pressure/mean arterial pressure) Note: Right atrial pressure (RAP) = central venous pressure (CVP), mean arterial pressure (MAP) = (systolic-diastolic pressure) /3+ diastolic pressure.