What is it about?
Electroencephalography (EEG) in comatose patients may show changes (reactivity) due to external stimulation by sound, light or pain. In this study we have quantified EEG reactivity and found a general pattern showing that increases in EEG activity are related to a poor outcome and deceases in EEG activity are related to a good outcome.
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Why is it important?
Systematic quantitative studies on EEG reactivity are very sparse and this study reveals new knowledge about the nature of EEG reactivity and its relation to prognosis in comatose patients.
Perspectives
I hope this article will help in a necesarry process of standardisation of both stimulation and analysing methods for EEG reactivity and generally promote the use of quantitative analysis techniques in medical tests. Clinically this may improve prediction of outcome in comatose patients.
Birger Johnsen
Aarhus Universitet
Read the Original
This page is a summary of: The Nature of EEG Reactivity to Light, Sound, and Pain Stimulation in Neurosurgical Comatose Patients Evaluated by a Quantitative Method, Clinical EEG and Neuroscience, August 2017, SAGE Publications,
DOI: 10.1177/1550059417726475.
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