How is an open head injury defined?

An open head injury is defined as one in which there is a fracture or penetration of the skull, exposing the brain tissue. This allows for a direct pathway between the external environment and the intracranial cavity, increasing the risk of infection and further complications. The presence of a fractured skull or a clear penetration indicates that the protective barriers around the brain have been breached, distinguishing it from closed head injuries where the skull remains intact and does not allow for direct exposure of the brain.

Understanding why this definition is critical in clinical practice helps paramedics assess the severity of head injuries accurately. Open head injuries often require immediate medical intervention to manage potential hemorrhage and prevent infection, as well as to provide appropriate neurological support.