Background: Sickle cell disorder (SCD) is a hereditary blood disease characterized by an abnormality in the oxygen-carrying protein hemoglobin present in red blood cells. Genetic abnormality causes these cells to become sickle-shaped, with shorter lifespan. Vaso-occlusive crisis is a major symptom of SCD: it is a sudden and severe episode of pain, and occurs when sickle-shaped cells block blood flow.
View Article and Find Full Text PDF