Abstract
Of 260 patients with ruptured intracranial aneurysm, symptomatic vasospasm occurred in twenty-eight patients.
The existence of a high density area spanning the bilateral cisterns on CT is significant as an index of vasospasm and of prognosis.
To prevent the occurrence of vasospasm, we used ventriculo-cisternal drainage (VCD) in patients with ruptured intracranial aneurysm in the acute stage.
This VCD method made it possible to decrease the incidence of vasospasm, especially in the cases operated within 48 hours after SAH.
The frequency of the shunt operation for NPH was indifferent with VCD or without VCD.
