Introduction: All patients with subarachnoid hemorrhage (SAH) admitted to our department are managed in intensive care unit; in the last years there has been a tendency to treat aneurysms in early stage by craniotomy or embolization, however the clinical evolution of patients is difficult in some cases because the neurosurgical critical care staff face with cerebral edema, intracranial hypertension, cerebral hypoperfusion and cerebral vasospasm among others but this early treatment has reduce the rate of rebleeding. 

Clinical case: We report the case of a 52-year-old woman with a diagnosis of subarachnoid hemorrhage who was monitored with an intracranial pressure (ICP) sensor and transcranial Doppler (TCD) and who received treatment with hypertonic solution at 7.5% presenting a good evolution.

Conclusion: This case show us how the clinical monitoring, ICP, TCD as well as treatment with hypertonic saline solutions are good complement to take correct decisions in shortest time, because “time is brain”.