Prolonged Cerebral Hyperemia after Aneurysmal Subarachnoid Hemorrhage: Report of Two Cases
Saguier Padilla I1*, Previgliano I1, Rubianes JI1
1Instituto Argentino de Diagnósticoy Tratamiento (IADT), Buenos Aires, Argentina.
*Corresponding Author: Saguier Padilla I, Instituto Argentino de Diagnóstico y Tratamiento (IADT), Buenos Aires, Argentina.
https://doi.org/10.58624/SVOANE.2025.06.029
Received: October 31, 2025
Published: November 26, 2025
Citation: Saguier Padilla I, Previgliano I, Rubianes JI. Prolonged Cerebral Hyperemia after Aneurysmal Subarachnoid Hemorrhage: Report of Two Cases. SVOA Neurology 2025, 6:6, 176-178. doi. 10.58624/SVOANE.2025.06.029
Abstract
Prolonged cerebral hyperemia is an underrecognized complication of aneurysmal subarachnoid hemorrhage (SAH), characterized by a sustained increase in cerebral blood flow (CBF) in the absence of increased metabolic demand. This entity may be associated with cerebral edema, seizures, and neurological deterioration, and requires a diagnostic and therapeutic approach different from vasospasm or delayed cerebral ischemia. We present two cases of patients with outpatient management with indomethacin. SAH who developed sustained hyperemia and headache, without evidence of vasospasm, and with good response to
Keywords: Subarachnoid Hemorrhage, Cerebral Hyperemia, Autoregulation, Intracranial Pressure, Metabolic Dysfunction.
