Erratum to: Intensive Care Med (2012) 38:1452–1460 DOI 10.1007/s00134-012-2586-0
The formula for computation of factor c, used in calculating mean systemic pressure, unfortunately contained an error (0.9(age−15) instead of the correct 0.99(age−15)). The passage concerned is given here in full, with the formula corrected:
The Pmsa estimate [9] uses a mathematical model of the systemic circulation comprising compliant arterial and venous compartments and resistances to blood flow. The model parameters are adjusted to match those of the patient’s current measured variables, such that Pmsa = a × Pcv + b × Pa + c × CO, where a and b are dimensionless constants (a + b = 1, typically a = 0.96, b = 0.04), and c has the dimensions of resistance and is a function of the patient’s height, weight and age:
c = 0.038 × (94.17 + 0.193 × age)/(4.5 × [0.99(age−15)] × 0.007184 × [height0.725] × [weight0.425]).
Footnotes
The online version of the original article can be found under doi:10.1007/s00134-012-2586-0.