Comparing Simplified EEG Monitoring Tool With Standard EEG Monitoring in Patients With Acute Neurological Insult

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-05-31

Study Completion Date

2018-05-31

Brief Summary

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After any acute brain injury, a primary pathophysiological response arises, enabling the brain to develop seizures and/or a status epilepticus (SE). These are frequently reported in patients admitted to the intensive care unit (ICU) with traumatic brain injury and brain injury caused by subarachnoid or intracerebral hemorrhage. Seizures can be presented without any clinical motor signs, which are then termed as nonconvulsive, and therefore remain frequently clinically unrecognized. As such, it is of great importance that these patients are diagnosed as early as possible since the increased metabolic demand and blood flow associated with an epileptic insult may further compromise the brain at risk. Thus far, continuous EEG (cEEG) is the only clinical instrument that is able to detect the development of early epileptic activity. Unfortunately, cEEG is not available in most ICUs and is labor-intensive, expensive and difficult to interpret for non-trained physicians. Therefore, a more simple and prognostic accurate EEG device is highly warranted to detect seizures in an early stage so that patients might benefit from a specific and early treatment. A validation study in comatose patients with an acute neurological insult will be conducted to provide evidence that simplified Bispectral Index EEG monitoring has the potential to detect epileptic activity as reliable as its gold standard, full EEG monitoring. Thereby, BIS EEG monitoring could possibly be used to facilitate the prognostication and management of epileptic seizures in this patient cohort which could eventually improve the clinical outcome.

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Detailed Description

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Conditions

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Acute Neurological Insult

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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study group

Patients (age ≥ 18 years) admitted to the ICU with an acute neurological insult which will be sedated/ventilated (Glasgow Coma Scale (GCS) ≤ 8).

Group Type OTHER

Bispectral index (BIS) EEG monitoring

Intervention Type DEVICE

The Bispectral Index (BIS) EEG monitor is a simplified EEG monitoring device which was originally designed to monitor the depth of hypnosis during general anesthesia. It does this by analyzing changes in the processed electroencephalogram (EEG) which occur with the hypnotic state and creating a measure (or index) indicative of these changes. A number between 0 and 100 is derived, with values above 70 associated with an awake state. The monitor also provides a single channel EEG, an electromyogram (EMG) and an index of signal quality (SQI), all in real time.

Interventions

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Bispectral index (BIS) EEG monitoring

The Bispectral Index (BIS) EEG monitor is a simplified EEG monitoring device which was originally designed to monitor the depth of hypnosis during general anesthesia. It does this by analyzing changes in the processed electroencephalogram (EEG) which occur with the hypnotic state and creating a measure (or index) indicative of these changes. A number between 0 and 100 is derived, with values above 70 associated with an awake state. The monitor also provides a single channel EEG, an electromyogram (EMG) and an index of signal quality (SQI), all in real time.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patients (age ≥ 18 years) admitted to the ICU with an acute neurological insult which will be sedated/ventilated (Glasgow Coma Scale (GCS) ≤ 8).
* Ability to place BIS sensors on the forehead
* Written informed consent form has to be obtained from the patient's next of kin and has to be reconfirmed if the patient regains consciousness