What is the role of somatosensory evoked potentials (SEPs) in determining the prognosis following cardiac arrest?

Updated: Oct 25, 2019
  • Author: Andrew B Evans, MD; Chief Editor: Selim R Benbadis, MD  more...
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Wijdicks et al reviewed several studies evaluating the use of SEPs and prognosis after cardiac arrest and found that the absence of N20 on bilateral SEPs of the median nerve was associated with negative outcome in terms of patient recovery. [81] The false-positive rate for this finding was 0.7%. The presence of an N20 response did not correlate with a positive or negative outcome. Accordingly, the authors concluded that SEPs can predict poor neurologic outcomes accurately in this population when evaluated between days 1 and 3 after cardiac arrest. [81]

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