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Continuous EEG monitoring
Continuous EEG monitoring (cEEG) can require intense use of resources, when scalp electrodes be placed, signal quality checks, and continuous monitoring must be performed on a 24 hour a day basis by a technologist or physician on staff. Due to developments in secure remote access technology the capability to monitor the brain of critically ill patients outside the academic university or teaching hospital is now available. NeuroTrace allows any hospital or clinic, regardless of size or resources, to provide continuous EEG monitoring.
What is Continuous EEG Monitoring?
EEG monitoring is one of the best tools for determining cerebral activity. Continuous EEG monitoring provides dynamic information about brain function, permitting early detection of changes in neurologic status. It is especially useful in patients unable to follow directions because of compromised consciousness or other difficulties.
Continuous EEG monitoring (cEEG) detects and guides treatment of nonconvulsive seizures, common in comatose patients, critically ill patients, and neonates with acute brain injury, and a source of great harm if untreated. Providing real time information about changes in brain function, cEEG also makes it possible to detect ischemia, hemorrhage, and increased intracranial pressure.
What is the percentage of Non-convulsive seizures in the ICU?
Studies show that up to 10% to 60% of comatose patients may have nonconvulsive seizures (NCSz). NCSz are electrographic seizures with little or no overt clinical manifestations, so EEG is necessary for detection (Anesth Analg 2009;109: Table 2, pg. 508). Furthermore, studies have shown that a 30-min routine EEG will detect less than half of seizures eventually identified by longer cEEG monitoring.
Who needs to be monitored using cEEG?
The EEG provides a noninvasive way to assess brain function in conscious, semi-conscious, and unconscious patients. Patients presenting with cognitive deficits of known or unknown etiology.
- History of seizure disorder
- Fluctuating levels of consciousness
- Acute brain injury
- Recent convulsive status epilepticus
- Induced coma
Continuous EEGs can also be used to monitor vasospasm in subarachnoid hemorrhage and predict outcome.