Journal of Neurosurgical anesthesiology 2023 Jul 1;35(3):333-337. doi: 10.1097/ANA.0000000000000843. Epub 2022 May 3. Baptiste Bouchier, Geneviève Demarquay, Frédéric Dailler, Anne-Claire Lukaszewicz, Thomas Ritzenthaler Abstract Background: Headache is the most common presenting symptom of spontaneous subarachnoid hemorrhage and managing this acute pain can be challenging.