Continuous EEG Monitoring and Clinical Outcomes in Patients Undergoing ECMO.

Area of Science:

• Neurology
• Critical Care Medicine
• Neurophysiology

Background:

• Neurological complications are common during Extracorporeal membrane oxygenation (ECMO).
• These complications can lead to long-term cognitive deficits in adult patients.
• Predicting neurological outcomes in ECMO patients is crucial for management.

Purpose of the Study:

• To explore the association between continuous EEG (cEEG) findings and neurological outcomes.
• To evaluate the prognostic value of cEEG in adult ECMO patients.

Main Methods:

• Retrospective cohort study of adult ECMO patients from January 2015 to July 2019.
• Analysis of continuous EEG (cEEG) characteristics and clinical outcomes.
• Neurological outcomes assessed using Glasgow Outcome Scale (GOS), modified Rankin Scale (mRS), and Cerebral Performance Category (CPC) at discharge and 6 months.

Main Results:

• Low EEG voltage was significantly associated with poor neurological outcomes (CPC, p=0.001).
• EEG reactivity correlated with outcomes at 6 months (CPC, p=0.005).
• Normal background frequency and voltage indicated good outcomes, while higher Mayo EEG grades predicted poor outcomes.

Conclusions:

• Continuous EEG (cEEG) monitoring may offer valuable prognostic information for adult ECMO patients.
• Further research is needed to determine if EEG findings reflect underlying illness severity or independent prognostic factors.