EEG Patterns and Outcomes in Post-Anoxic Coma After Cardiac Arrest
Author Information
Author(s): Shivji Zaitoon, Bendahan Nathaniel, McInnis Carter, Woodford Timothy, Einspenner Michael, Calder Lisa, Boissé Lomax Lysa, Shukla Garima, Winston Gavin P.
Primary Institution: Kingston Health Science Center
Hypothesis
What is the relationship between EEG patterns and outcomes in patients with post-anoxic coma following cardiac arrest?
Conclusion
Highly malignant EEG patterns, seizures, and myoclonus are linked to poor outcomes, while EEG reactivity and improvement on follow-up EEG are associated with better outcomes.
Supporting Evidence
- 22% of patients had a favourable outcome.
- None of the patients with highly malignant EEG survived.
- 94% of patients with myoclonus had unfavourable outcomes.
- 72% of patients with reactive EEG survived.
- 67% of patients who showed improvement on follow-up EEG had a favourable outcome.
Takeaway
Doctors looked at brain waves from patients who had a heart stop to see how well they might recover. They found that certain brain wave patterns mean a patient is less likely to get better.
Methodology
This retrospective study reviewed EEG patterns and clinical features of 81 adult patients admitted to the ICU after cardiac arrest from 2017 to 2020.
Potential Biases
Potential bias due to the retrospective nature of the study and reliance on clinical records.
Limitations
The study is limited to a single center and focuses solely on EEG findings without incorporating other prognostic markers.
Participant Demographics
57 males and 24 females, aged 18 to 87 years.
Statistical Information
P-Value
p < 0.001
Statistical Significance
p < 0.001
Digital Object Identifier (DOI)
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