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- W2808020188 abstract "Objective: To report visual hallucinations as a potential complication following hemispherectomy. Background: Visual hallucinations occur in many conditions, but have not been reported as occurring after hemispherectomy. Design/Methods: Retrospective chart review. Results: We observed two patients who experienced florid and stressful visual hallucinations following hemispherectomy out of the last 24 consecutive hemipherectomy patients operated on in our center. Patient 1 had intractable focal seizures from the left hemisphere at age 20 months due to a previous stroke secondary to non-accidental trauma in infancy. He underwent left hemispherectomy at 3-years-old. He experienced frightening hallucinations of snakes (about 15–20 min, 2–3/week) within 1 month of surgery for a total of 3.5 months. These could not be attributed to medication effect and were not associated with any other symptoms suggestive of seizure etiology. EEG showed no inter-ictal epileptiform activity on the right side. Patient 2 presented at 3-years-old with intractable focal seizures due to diffuse right hemisphere cortical dysplasia. He underwent hemispherectomy at age of 6 years. Eighteen months later he developed repeated “scary” visualizations (about 20–40 min, 1–2/week) that caused him to shout, throw things and kick while intermittently looking and pointing at the hallucination. The patient was unable to articulate what he was seeing. These could not be attributed to a medication effect and were not associated with manifestations that suggested seizures. Inter-ictal EEG demonstrated bilateral epileptiform activity. Hallucinations recurred over a 6-month period and then subsided. Monitoring in both cases failed to capture an episode. Conclusions: We describe 2 patients who experienced recurrent visual hallucinations following hemispherectomy that caused significant morbidity before subsiding 3–6 months later. Whether these represented focal seizures, a Charles Bonnet-like syndrome, or were unrelated to hemispherectomy is not clear. However, clinicians should be aware of this phenomenon. Even though symptoms were florid, they were transient in both patients. Disclosure: Dr. Sachdev has nothing to disclose. Dr. Vanags has nothing to disclose. Dr. Arehart has nothing to disclose. Dr. Grant has nothing to disclose. Dr. Mikati has nothing to disclose." @default.
- W2808020188 created "2018-06-21" @default.
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- W2808020188 date "2017-04-18" @default.
- W2808020188 modified "2023-09-24" @default.
- W2808020188 title "Visual Hallucinations as a Novel Complication Following Hemispherectomy (P6.224)" @default.
- W2808020188 hasPublicationYear "2017" @default.
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