Microvascular function at reduced flow rates.

Microvascular reactions to reduced flow in human skin as observed by vital microscopy are described. The behaviour of the cellular components of blood is analysed. Recirculation with only minor disturbances in the microcirculation was found even after complete occlusion for three hours. In one case occlusion of seven hours' duration was followed by recirculation. These findings indicate the integrity and restitution capability of the microvascular compartment in superficial human tissues at reduced flow.