Non-aneurismatic subarachnoidal hemorrahge of hypertensive etiology: case report
Context: Subarachnoid hemorrhage (SAH) is a neurological emergency defined by the leakage of blood into the spaces that cover the central nervous system. Non-aneurysmatic SAH is defined according to the blood distribution on computed tomography (CT). Perimensencephalic SAH (PM-SAH) has blood distribution in perimesencephalic cisterns in front of the brain stem. Non- perimesencephalic SAH has a more diffuse distribution. Case report: A 54 years old man with systemic arterial hypertension. He reported that he had consumed alcoholic beverages the night before. On the morning of hospitalization he had a headache with loss of sensation on the left side of his body. In the EC, he presented sweating, left parestesia, mild dyslalia and deviation from the right rhyme. A cranial CT scan was performed revealing SAH involving the cisterns and furrows near the right cerebral hemisphere, next to the Sylvian fissure. The clinical and imaging results demonstrated SAH grade II Hunt & Hess and Fischer II, Glasgow 15, without motor loss. Cerebral angiography, the gold standard for the diagnosis and mapping of aneurysms, was performed, with a negative result. On the last day of hospitalization, CT and Doppler indicated resorption of edema and absence of vasospasm, respectively. There was also an adjustment of the hypertensive medications of the patient who did not have sequelae. Conclusion: PMs-SAH have excelente prognosis in short and long term with no risk of future rebleeds. The event occurred after an episode of excessive alcohol consumption in addition to decompensated arterial hypertension.