Figure 1. Changes in perfused capillary density following infusions of dobutamine (median 60 minutes), enoximone (median 85 minutes), and norepinephrine (median 75 minutes) at the individual patient level.

↑, increase of parameter following inotropic therapy in terms of percentage relative to baseline. The reference value of perfused capillary density is indicated by the red dashed line (ie, 10.3 mm.mm⁻²). Values greater than this reference are to be considered as preserved capillary density, values below or equal to this reference reflect impaired capillary density [5].