The Alternative Position for the SedLine® Sensor

Cleveland Clinic Abu Dhabi

Status: Completed

Conditions: Depth of Anesthesia Monitoring

Study type: Observational

Funder types: Other; Industry

Identifiers

NCT03947060

A-2019-028

Details and patient eligibility

About

SedLine® Brain Function Monitoring provides real-time insight into a patient's depth of anesthesia with bilateral data acquisition and processing of electroencephalogram (EEG) signals. Four active EEG leads collect data from the frontal lobe with a sensor position on the patient's forehead.

Whenever a frontal approach for neurosurgical procedures is required or the frontal placement of the EEG is not indicated, it would not be possible to place the SedLine® .

Numerous studies have analyzed the change of position and the application of alternative positions for other devices used in assessing the depth of anesthesia. Albeit, yet to date, there is no study that analyzed the application of alternative positions for the SedLine® sensor.

Full description

The purpose of study is to compare the standard forehead placement versus a nasal placement of SedLine® sensor for neuromonitoring.

The hypothesis is that placing the central sensors in the montage approximately 2 cm below the standard recommended placement, across the nasal bridge and then running under the eyes to the normal temporal leads placement would put the entire montage out of the operative field and would still have corresponding values and EEG signals.

The primary outcome measure is to monitor and compare processed electroencephalograph (EEG) values (PSi- Patient State Index, SEFL- Spectral Edge Frequency Left, SEFR- Spectral Edge Frequency Right, SR-Suppression Ratio, EMG-Electromyography, ARTF-Artifact) and EEG waveforms, on both sensors (standard-Forehead and alternative-Nasal)

Other parameters that will be measure are patient demographics (age, sex, surgery, ASA status, weight, height, BMI).

Enrollment: 40 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients older than 18 years of age, both genders.
• Patients undergoing simple or complex surgery.
• American Society of Anesthesiologists Classification (ASA) score I to III.

Exclusion criteria

American Society of Anesthesiologists Classification (ASA) score IV and V.

• Emergency cases
• Cognitive/Mentally impaired or unable to provide consent
• Previous neurological problems affecting EEG
• Dementia
• Use of sedative or drugs that can alter EEG readings
• Patients under head and neck surgery

Trial design

40 participants in 1 patient group

Nasal & Frontal sensor position

Description:

One group of participants with two modes of measurement. First mode is standard frontal placement of the SedLine® sensor. Second mode is alternative nasal placement of the SedLine® sensor.