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Bradycardia from flash stimulation
Author(s) -
Einspenner Michael,
Brunet Donald G.,
Boissé Lomax Lysa,
Spiller Allison E.
Publication year - 2015
Publication title -
epileptic disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.673
H-Index - 53
eISSN - 1950-6945
pISSN - 1294-9361
DOI - 10.1684/epd.2015.0775
Subject(s) - bradycardia , electroencephalography , anesthesia , medicine , heart rate , stimulation , photic stimulation , cardiology , audiology , psychology , neuroscience , blood pressure , visual perception , psychiatry , perception
This case study documents a patient who experienced bradycardia brought on by flash stimulation during a routine outpatient EEG recording. The patient had known photosensitive seizures in the past. During this routine EEG, the patient's heart rate dropped to about 12 beats per minute with the EEG displaying slow‐delta‐frequency waves with no epileptiform spikes or sharp waves. During immediate follow‐up, in our emergency department, the patient had a brief asystolic event, followed by bradycardia. Cardiology examinations were normal. We propose that this response was a photic‐triggered reflex vasovagal reaction.