[Sodium nitroprusside in controlled arterial hypotension during neurosurgical operations]

A 0.02% solution of sodium nitroprusside was given in intravenous drip infusion for induction of controlled arterial hypotension during intracranial operations. The drug was given to 9 patients operated upon for aneurysms and 2 patients with intracranial meningiomas. It was observed that arterial blood pressure could be easily controlled in this way for the purposes of operation.