Affect-induced reflex seizures (AIRS): A case series based on a systematic literature review
Epilepsy & Behavior, ISSN: 1525-5050, Vol: 92, Page: 18-25
2019
- 2Citations
- 44Captures
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Review Description
Seizures are commonly thought to occur in a spontaneous, unpredictable manner. However, it is well-established that a subset of patients with epilepsy can experience reflex seizures that are consistently elicited by a specific stimulus. While various forms of reflex epilepsy have been documented in the literature, acute affective states have not been commonly described as a potential reflex seizure trigger. We performed a systematic literature review to determine if acute emotional states can trigger reflex seizures. We included any case in which reflex seizures repeatedly occurred in response to a patient-specific stimulus that was reported as emotionally relevant by the authors. This yielded our case series of ten patients who have been described to have reflex seizures in response to emotional stimuli. We characterized features of these cases including the following: age, gender, developmental and psychiatric history, seizure semiology and duration, emotional triggers, other reflex triggers, relationship between reflex triggers and seizures, investigations, localization, final diagnosis, treatment, and outcome. Considerable variability was found between cases. A trend toward limbic seizure semiology with psychic aura originating in networks involved in emotional processing was noted, with temporal lobe epilepsy being the most common, although without clear laterality or gender predominance. In addition, the report of a significant life stressor occurring at epilepsy onset in three of ten patients as well as the initial suspicion that reflex epileptic seizures were psychogenic in three cases both emphasize the role of electroencephalography in assessment of such presentations to avoid missing a diagnosis of epilepsy. Findings from these ten cases suggest that a patient-specific affective stimulus may trigger reflex seizures in a subset of patients, and that this could be underrecognized or mislabeled as nonepileptic. We encourage future studies with larger numbers to further characterize this phenomenon. Insights gained may enhance our understanding of seizure localization and bear potential treatment implications.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1525505018306942; http://dx.doi.org/10.1016/j.yebeh.2018.10.036; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85059177140&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/30599458; https://linkinghub.elsevier.com/retrieve/pii/S1525505018306942; https://dx.doi.org/10.1016/j.yebeh.2018.10.036
Elsevier BV
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