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Secondary Brain Injury

Delayed cellular and physiological damage that develops hours to days after the initial head trauma.

Key Facts

Secondary injury develops progressively hours to days after the initial trauma.
It is driven by physiological cascades like inflammation, ischemia, and cellular toxicity.
Prompt medical intervention can significantly limit the extent of secondary damage.
This phase is the primary target of acute veterinary critical care.

Edema is a primary driver of delayed neurological deterioration in TBI patients.

The extent of primary damage directly influences the severity of secondary cascades.

Secondary injury develops as a delayed physiological consequence of the initial TBI.

Proper hemodynamic and respiratory support directly mitigates secondary injury pathways.

Serial imaging helps track the progression or resolution of delayed pathological changes.