Definition Generally treated with nimodipine (controversial, probably works not by dilating vessels but as a neuroprotectant, if at all) and triple-H therapy (hypertension, hypervolemia, and hemodilution, also controversial). Increased blood flow, as opposed to pressure, may be more important. In the aftermath of subarachnoid hemorrhage, when nimodipine & HHH fail to avert cerebral vasospasm, balloon […]