CClinicalTrials.gg
Status unknownNCT04412434Updated Mar 12, 2021

EEG Patterns in Patients With Acute Ischemic Stroke Resulted From Large Vessels Occlusion in the Anterior Circulation

An interventional study of Electroencephalography (EEG) in Stroke, Ischemic, sponsored by rambam62. Status unknown at 1 site in Israel. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-03-12.

Sponsored by rambam62 · Not applicable, Interventional, and Diagnostic

The sponsor has not verified this record recently (last verified Mar 2021), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
200
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Clinical deterioration is observing in up to forty percent of patients with acute ischemic stroke (AIS) due to large vessels occlusion. Until now, there is no automated monitoring system for early detection of neurological deterioration in such patients. As a first step to develop such system investigators suggest this study aiming to evaluate patterns of brain electrical activity registered by EEG in patients with AIS attributed to the MCA or ICA territory correlated with location and extension of ischemic lesions as determined by non-contrast CT (NCT).

Read the detailed description

Rationale. Despite the exciting developments in the treatment of acute ischemic stroke (AIS) in last years, the problem of neurological deterioration in patients with AIS remains unresolved and poorly understandable. This is especially correct about patients with AIS resulted from large vessel occlusion (LVO), mainly internal carotid artery (ICA) and middle cerebral artery (MCA) occlusion. Such deterioration is observing in up to forty percent of patients with acute ischemic stroke due to LVO. On the other side, according to the literature about 40 % of LVO strokes resulted from atrial fibrillation. Until now, there is no automated monitoring system for early detection of neurological deterioration in AIS patients. Such monitoring system may save millions of lives of stroke victims all over the world. As a first step to develop such system based on change of brain electrical activity registered by electroencephalography (EEG) in patients with AIS investigators suggest this study.

Overall goal. The aim of the suggested research is to evaluate patterns of brain electrical activity registered by EEG in patients with AIS attributed to the MCA or ICA territory in correlation with location and extension of ischemic lesions as determined by non-contrast CT (NCT). Based on these data, the attempt to find algorithms, describing such correlation will be done.

Target population. The prospective study will include at least 200 AIS patients with acute stroke resulted from MCA or ICA occlusion.

Methods. Non contrast CT and EEG will be done at the same day. Neurologist will evaluate neurological status at the day of EEG and CT performing and clinical score by National Institute of Health Stroke Scale (NIHSS) will be obtained. EEG will be performed continuously for at least 30 minutes with 19-channel EEG machine.

Assessment. After gathering clinical, EEG and NCT data mathematical and computerized analysis (including Artificial Intelligence methods) will be applied aiming to find algorithms describing relationship between size and location of AIS and change in brain electrical activity registered by EEG in AIS patients.

02

Conditions studied

  • Stroke, Ischemic

Keywords

  • eeg pattern
  • acute ischemic stroke
03

In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,007 are open to participants now.

This study's planned enrollment of 200 is above the median of 50 across 5,369 interventional studies indexed under Stroke.

Browse Stroke studies →

Lead sponsor

This is the only study on the registry with rambam62 as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with acute ischemic stroke, due to large vessel occlusion
  • Age of 18 years and more
  • Male or Female
  • Modified Rankin Scale of ≤ 2 prior to presentation
  • NIHSS ≥ 4 at the day of NCT and EEG

Exclusion criteria

Exclusion Criteria:

  • Epilepsy
  • Brainstem or cerebellar stroke
  • Intracranial or extracranial hemorrhage of any kind
  • History of severe head trauma
  • History of severe dementia or progressive neurodegenerative disease
  • Cerebral tumor or hydrocephalus by anamnesis or by imaging
  • Lacunar stroke
  • Significant movement disorder.
  • Local skull or skin condition, preventing EEG electrode application.
  • Any known disorder, which may interfere with the protocol implementation.
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
200 participants (estimated)

Study arms

  • Other
    patients with acute ischemic stroke

    This open-label prospective study will be conducted in the single medical center (RAMBAM Medical Center) and will include at least 200 patients with acute ischemic stroke resulted from MCA or ICA occlusion.

    Diagnostic Test: Electroencephalography (EEG)

Interventions

  • Diagnostic testElectroencephalography (EEG)

    Electroencephalography (EEG) is a painless and harmless method to record the bioelectric activity of the brain. Clinically, EEG refers to the recording of the brain's spontaneous electrical activity over a period of time, as recorded from multiple electrodes placed on the scalp This method can be helpful in the diagnosis of many various brain diseases and pathological conditions. For the examination, electrodes are placed on the head, using a special harmless gel, similar to gel, used in ultrasonographic studies.

06

What researchers measure

Primary outcomes

  1. EEG pattern

    EEG patterns depending on size and location of acute ischemic stroke,including generalized or focal slowing or both and epileptiform discharges

    Time frame: 24 months

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04412434
Lead sponsor
rambam62
Responsible party
rambam62 (Director, Head of Stroke Service, Principal Investigator, Clinical Professor, Rambam Health Care Campus) — Sponsor-investigator
First posted
Jun 2, 2020
Start date
Oct 4, 2020
Primary completion
Jul 2022 (estimated)
Completion
Jul 2022 (estimated)
Last update
Mar 12, 2021

Study contacts

Gregory Telman, MD
Contact
g_telman@rmc.gov.il
972-47772161
Svetlana Afanasiev, MPH
Contact
s_afanasiev@rmc.gov.il
972-47771926
Gregory Telman, MD
principal investigator · Rambam Health Care Campus

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion