• Shohei Noguchi, Ryo Miyaoka, and Hiroshi Miyachi.
• Department of Neurosurgery, Kitakyushu City Yahata Hospital, Kitakyushu, Japan.
• World Neurosurg. 2023 Jun 19; 177: 868786-87.

AbstractA 45-year-old woman with chronic depression and currently receiving dual serotonergic therapy was transferred to our department with sudden dysbasia; she also reported an antecedent thunderclap headache. Magnetic resonance imaging (MRI) revealed a symmetrical bilateral acute infarction in the medial parietal lobe and severe vasoconstriction in the cerebral arteries. We diagnosed reversible cerebral vasoconstriction syndrome (RCVS) and stopped the serotonergic drug regimen. Her symptoms improved after receiving a calcium blocker and magnesium sulfate, and she was discharged after 20 days. Cerebral infarctions developed in 30%-40% of reversible cerebral vasoconstriction syndrome (RCVS) cases, mostly within watershed regions; however, these atypical infarctions were bilateral and symmetrical, potentially because of hypoperfusion caused by long-lasting severe vasoconstriction in the anterior cerebral arteries. Rare bilateral neurologic deficits can be mistaken for hypochondriac delusions, particularly in patients with depression. Since serotonergic drugs are the main cause of RCVS, primary care psychiatrists must be aware of drug-induced RCVS.Copyright © 2023 Elsevier Inc. All rights reserved.

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