MedTrace Logo

The Effect of Electromyogram (EMG) Activity on Anesthetic Depth Monitoring

NCT03230929 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 25

Last updated 2018-04-06

No results posted yet for this study

Summary

Currently, a lot of equipments based on Bispectral index (BIS) is used clinically in order to measure the depth of anesthesia. Although BIS is used for the measurement of the presence of consciousness or degree of sedation during general anesthesia, it could be influenced by factors that affect or interfere with the activity of EEG because it is a numerical value which is measured by analyzing EEG. The BIS electrode for EEG analysis should be attached to the patient's forehead and the EEG signal is 0.5 - 30 Hz, the EMG signal is 30 - 300 Hz, and the BIS analyzes the 0 - 47 Hz signal. Therefore, 30 -47 Hz EMG signal may influence the BIS value and the BIS value may differ from the actual. In patients with complete muscle relaxation, the change in BIS varies in proportion to the concentration of anesthetic, but in a state with less muscle relaxation or arousal period of anesthesia when recovery of muscle relaxation occurs, BIS value may not accurately reflects the change in the depth of anesthesia. Although there is a study on the influence of the degree of muscle relaxation on BIS value, there is no study on whether phase lag entropy (PLE) measuring anesthesia depth based on different mechanism from BIS is affected by status of muscle relaxation. After measuring BIS and PLE at the same time, I will compare both of them and investigate the reliability of the measurement of the depth of anesthesia of PLE and how electromyogram activity affects PLE.

Conditions

  • General Anesthetic Drug Overdose

Interventions

DEVICE

BIS-PLE

Anesthesiologist attaches the sensors of BIS and PLEM 100 on the forehead of the patient, and adheres the neuromuscular monitoring device on the medial side of the wrist and the ipsilateral thumb to continuously monitor the state of consciousness and muscle relaxation before, during and after surgery. Reversal of muscle relaxant could be performed by intravenous injection of sugammadex 4 mg/ kg in the case of deep neuromuscular relaxation, and 2 mg / kg in the case of shallow muscle relaxation degree under neuromuscular monitoring. After then, they monitor and record the values of BIS, PLEM 100, and neuromuscular monitoring in 1 minute increments for 5 minutes.

Sponsors & Collaborators

  • Pusan National University Yangsan Hospital

    lead OTHER

Principal Investigators

  • Tae-Kyun Kim, PhD. · Pusan National University Yangsan Hospital, Geumo-ro 20, Mulgeum-eup, Yangsan, 50612

Study Design

Allocation
NA
Purpose
SCREENING
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-08-01
Primary Completion
2017-12-30
Completion
2017-12-31

Countries

  • South Korea

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03230929 on ClinicalTrials.gov