J Neurosurg Sci
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Acute subdural haematoma (ASDH) is seldom an isolated lesion and it is difficult to understand the mechanisms which determine the poor prognosis associated to this occurrence. Aim of this study was estimating the outcome of patients with ASDH without any companion lesions by analysing the haematoma volume, its thickness and midline shift. ⋯ The presence and size of midline shift was a more important determinant of outcome than ASDH volume or its thickness.