Subdural hematoma risk factors
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Factors increasing the risk of a subdural hematoma include very young or very old age. As the brain shrinks with age, the subdural space enlarges and the veins that traverse the space must travel over a wider distance, making them more vulnerable to tears. This and the fact that the elderly have more brittle veins make chronic subdural bleeds more common in older patients.[1] Infants, too, have larger subdural spaces and are more predisposed to subdural bleeds than are young adults.[2] For this reason, subdural hematoma is a common finding in shaken baby syndrome. In juveniles, an arachnoid cyst is a risk factor for a subdural hematoma.[3]