Stasis

Staz ( Greek στάσις - standing , immobility ) - stop the physiological content in the lumen of a tubular organ ^[1] .

Stasis can occur in various cases:

• The cessation of blood flow ( hemostasis ) or lymph ( lymphostasis ) in the vessels of the microvasculature ^[2]
• The cessation of the outflow of bile into the duodenum as a result of a violation of its formation or excretion due to pathological processes ( cholestatic syndrome , depending on the location of the obstacle, is divided into intrahepatic and extrahepatic).
• Cessation of movement of feces (coprostasis) ^[1] .

Distinguish

• ischemic (pressure force in microvessels decreases due to a significant decrease in pressure in their arterial sections, may be associated with a cessation of blood flow from larger arteries),

• stagnant (occurs with a decrease in the pressure vector throughout the microvessels, due to a sharp increase in pressure in their venous sections during stagnation of blood due to venous hyperemia , thrombosis or compression of the tumor ),
• true capillary (associated with a significant increase in blood flow resistance in the corresponding microvessels, is subject to the influence of nervous and humoral mechanisms) ^[3] .

Symptoms of stasis of the circulatory system are similar to ischemia , since the supply of nutrients and oxygen to the corresponding areas of the tissue is disrupted.