Case Reports in Anesthesiology (Jan 2025)

Suspected Somatosensory Evoked Potentials Pacing Atria During Cerebral Bypass Surgery: A Case Report

  • Denise S. Abdulahad,
  • Justin Pachuski

DOI
https://doi.org/10.1155/cria/2637445
Journal volume & issue
Vol. 2025

Abstract

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Somatosensory evoked potentials are commonly utilized during surgery to assess the function of the central nervous system. We present a case of a 48-year-old female patient undergoing cerebral bypass surgery who was noted to have reproducible, stimulation frequency-dependent heart rate changes that coincided with somatosensory evoked potentials stimulation. We hypothesize that the somatosensory evoked potential stimulation current was depolarizing a foci of atrial myocytes, resulting in the initiation of the cardiac cycle.