Abstract
Red blood cells play a key role in normal hemostasis and thrombosis. Their ability
to affect coagulation is multifactorial and depends on their mechanical properties
affecting viscosity and blood flow, ability to aggregate and adhere to each other
and potentially to vascular endothelium, molecular signaling via microvesicles and
surface proteins, including blood group antigens, and participation in nitric oxide
metabolism. Transfused red blood cells suffer from a storage lesion that damages the
cells leading to changes in shape, function, and intracellular communication. In this
article, we review if and how transfused red blood cells may lead to both increased
hemorrhage and increased thrombosis.
Keywords
erythrocytes - hemorrhage - thrombosis - transfusion