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Status unknownNCT03977350Updated Sep 11, 2020

Association Between qEEG Measure and Post-Operative Cognitive Dysfunction (POCD) and Postoperative Delirium (POD)

An observational study in Cognitive Dysfunction, sponsored by Neuroindex Ltd.. Status unknown at 1 site in Israel. Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2020-09-11.

Sponsored by Neuroindex Ltd. · Observational

The sponsor has not verified this record recently (last verified Sep 2020), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
50
Ages
65 Years and older
Sex
All
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Study summary

Cognitive complications after major surgery are a common phenomenon. The incidence of Postoperative Cognitive Dysfunction (POCD), may vary from 5% to 25% in adult patients, depending on different risk factors. Age has been strongly associated with cognitive complications. POCD is a prolonged decline in cognitive function that appears after surgery as compared with preoperative functions. In order to classify evaluate POCD, it requires at least 2 measurements. A baseline, completed before surgery and a second measurement, post surgery.

In light of the high prevalence of POCD and the difficulties in its prediction, NeuroIndex has developed a quantitative EEG system and software that aim to produces risk predictor index (IS) for POCD. This study aims to evaluate the relationship between the software produced predictor index and the actual POCD events. The qEEG will be monitored during the surgery in addition to the routine clinical practice in operating rooms.

POCD will be evaluated using Montreal Cognitive Assessment test (MoCA) prior and post surgery.

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Conditions studied

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In context

Delirium

1,057 studies on the registry are indexed under Delirium; 238 are open to participants now.

This study's planned enrollment of 50 is below the median of 200 across 418 observational studies indexed under Delirium.

Browse Delirium studies →

Lead sponsor

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

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

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Who can participate

Ages eligible
65 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

The study population will consist of male and female adults undergoing cardiac surgery under general anesthesia

Inclusion criteria

  • Males and females between the ages of 65 or above.
  • Subjects with American Society of Anesthesiologists physical status I-III.
  • Subjects who are intended to undergo cardiac surgery (CABG or valve replacement) under general anesthesia.
  • Surgical procedures scheduled for over 30 minutes.
  • Lack of significant hearing disturbances.
  • Subjects with ability to read and understand the consent form.

Exclusion criteria

Exclusion Criteria:

  • Significant visual impairment so that the pictures of the confusion assessment method could not be interpreted to accurately test to assess delirium.
  • Profound dementia or aphasia that interfered with the assessment of cognitive dysfunction (positive delirium in CAM-ICU).
  • Patients with a history of stroke.
  • Any documented major neurologic or psychiatric dysfunction.
  • Pregnant women.
  • Long term use of sedative-hypnotic drugs and antidepressant drug.
  • Subjects with scalp or skull abnormalities (s/p brain surgery, cranial implants).
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
50 participants (estimated)
Patient registry
No

Groups and cohorts

  • Patients over 65 years undergoing heart surgery

    Patients over 65 years undergoing heart surgery under anesthesia, EEG monitored

    Device: EEG monitoring

Interventions

  • DeviceEEG monitoring

    EEG monitoring under general anesthesia

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What researchers measure

Primary outcomes

  1. The qEEG parameter IS correlation with POCD

    The qEEG parameter IS, which range between 0 and 1, where higher scores are more favorable than lower scores will be evaluated for its correlation with POCD that will be measured by Montreal Cognitive Assessment (MoCA)

    Time frame: 1 week following surgery

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Study locations

1 of 1 sites recruiting
  • Carmel Medical Center
    Haifa, 3436212, Israel
    Recruiting
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 11, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03977350
Lead sponsor
Neuroindex Ltd.
Responsible party
Sponsor
First posted
Jun 6, 2019
Start date
Sep 23, 2019
Primary completion
Sep 1, 2021 (estimated)
Completion
Dec 1, 2022 (estimated)
Last update
Sep 11, 2020

Study contacts

Ester Pri-Or, Nurse CRA
Contact
Ester@neuroindex.com
972-506629699
Tamar A Arens, Dr.
Contact
Tamar@neuroindex.com
972543532120
Dror Leviner, Dr.
principal investigator · Carmel Medical Center

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 Sep 2020. You cannot join it, but the record below documents what was studied.

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