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OpenTrials
Completed

NCT Number: NCT03046615

Intraoperative Non-invasive Eye Movement Monitoring

For procedures involving proximity to the nerves responsible for eye movement, the need to monitor eye movement exists. The current solution is to place needles in the muscles surrounding the eye. The Investigators have invented a non-invasive electrode and software designed to monitor eye movements non-invasively. The electrode is placed on the skin on the corner of the eye and using the natural dipole of the eye, detects the horizontal and vertical movements of the eye. The Investigators would like to prove efficacy compared to the standard monitoring.

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Key information

Conditions

Surgery

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Mayo Clinic in Rochester

Rochester, Minnesota, 55905, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subject will be undergoing surgery involved of the nerves controlling the eye

Exclusion criteria

  • None

Treatment and study plan

EEG Electrode Patch

Device

The additional electrodes are modified EEG electrodes (used in clinical practice on the head already) placed in a silicone molding. These are placed lateral to the eye with the patient asleep. These are then wired to the same recording apparatus that we would commonly use for recording.

Standard Needles

Device

Needles are placed in the muscles surrounding the eye to measure eye movements.

Primary outcomes

  1. Number of subjects with greater than 95% concordance in signal between the standard needles and EEG electrode patch

    Time frame: approximately 30 minutes

    The current method of measuring eye movement is to place needles in the muscles surrounding the eye. For the non-invasive method, the electrode is placed on the skin on the corner of the eye and using the natural dipole of the eye, detects horizontal and vertical movements of the eye. The signal comparison for the two methods would be a biphasic dipole representing eye movements compared to the compound muscle action potential of the invasive method.

Sponsors and collaborators

Lead sponsor

Mayo Clinic

Other

Registry information

Important dates

Study start
2017
Primary completion
2018
Study completion
2019
First posted
Feb 8, 2017
Registry last updated
Feb 26, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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