Characteristics of Reactive Hyperemia in the Canine Intestine.

• Although many studies have dealt with postocclusion ("reactive") hyperemia in skeletal muscles," and a considerable number with such hyperemia in the coronary " and renal circulations," little systematic study of this phenomenon appears to have been made on the intestinal circulation. Since this vascular bed has received considerable attention in relation to intestinal ischemic shock," endotoxic,' and hemorrhagic shock,a detailed study of the response of the intestinal circulation to brief periods of ischemia appeared warranted as a help in understanding better the hemodynamic changes which occur in shock.