Comments on the Review 'Does mean arterial blood pressure scale with body mass in mammals? Effect of measurement of blood pressure' Acta Physiol (Oxf)

In April 2018, Acta Physiologica published a review entitled: 'Does mean arterial blood pressure scale with body mass in mammals? Effects of measurement of blood pressure'1 . On the basis of data from 114 references including 47 species of mammals, Poulsen et al. 20181 investigated whether mean arterial pressure (MAP) scales to body mass (BM) and examined the effect of physiological and methodological confounders such as use of anaesthetics and restraint and choice of method for determination of blood pressure. We wish to contribute to these findings, by investigating to what extent BM and the vertical distance between the heart and brain contribute to MAP. Physiological variables that encompass a length or a time dimension scale to the size of the animal.