[Reactions of the microcirculatory bed to transient ischemia].

Short-term ischemia on the microvascular level in the rat intestine mesentery was induced by occlusion of the a. mesenterica superior or regional supplying arteriole for 1 or 10 min. No substantial disturbances of blood flow velocity and hematocrit occurred in microvessels after 1 min occlusion, whereas the blood flow cessation for 10 min was followed by a decrease of flow velocity in microvessels under study and development of thrombosis at the site of arteriole occlusion.