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Late Onset Bradyarrhythmia during Vagus Nerve Stimulation
Author(s) -
Åmark Per,
Stödberg Tommy,
Wallstedt Lars
Publication year - 2007
Publication title -
epilepsia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.687
H-Index - 191
eISSN - 1528-1167
pISSN - 0013-9580
DOI - 10.1111/j.1528-1167.2007.01023.x
Subject(s) - vagus nerve stimulation , complication , vagus nerve , medicine , epilepsy , anesthesia , stimulation , deep brain stimulation , refractory (planetary science) , surgery , cardiology , psychiatry , physics , disease , astrobiology , parkinson's disease
Summary: Vagus nerve stimulation (VNS) is widely used to treat refractory epilepsy. It is usually safe and has few side effects. Cardiac arrhythmia has been reported during lead tests performed during implantation of the device, but never during regular treatment. We report here a case where vagally induced bradyarrhythmia, perfectly correlated with the stimulation periods, suddenly occurred two years and four months after the VNS implantation. The diagnosis was based on the appearance of syncope‐like episodes. No specific cause could be found to explain the appearance of the episodes. To our knowledge, this is the first report on this severe and life‐threatening side effect of VNS and should alert clinicians to its possibility. However, considering the large number of VNS implantations performed worldwide, it must be regarded as an extremely rare complication.