umls-concept:C0022116 | skos:definition | MSH: A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION.,CSP: blood deficiency in an organ or tissue caused by a constriction or obstruction of its blood vessels.,CHV: a decrease in blood supply caused by blockage of blood vessel,CHV: a decrease in blood supply caused by blockage of blood vessel,NCI: Lack of blood supply to a part of the body. Ischemia may cause tissue damage due to the lack of oxygen and nutrients. | lld:umls |