Chronic subdural haematoma after spinal anaesthesia. Case report.

In this study an interesting and not frequent case of non-traumatic chronic subdural haematoma after spinal anaesthesia is reported. After a careful review of the cases described in the literature, the Authors discussed the physiopathological mechanisms, emphasizing how the break of the bridge veins or of the subarachnoid granulations, the cerebral atrophy and the dehydration are factors which facilitate the appearance of this neurological complication. They suggest that a suitable post-operative rehydration is an important prevention factor.