Clinical Trials Logo
  1. Home
  2. General Anesthesia
  3. NCT02995447

Differential Effects of Propofol on Scalp and Intracranial EEG

General Anesthesia Clinical Trial

Official title:
Differential Effects of Propofol on Scalp and Intracranial Electroencephalogram

Clinical Trial Summary

The anesthetic propofol has a dose-depending effect on the EEG, which differs in comparison between scalp and intracerebral electrodes

Clinical Trial Description

The electrical activity of the brain (electroencephalogram EEG) is usually assessed from the surface of the head, which is approximately 1-2 cm above the cerebral cortex. Thus, the spatial resolution of the EEG is low, and the electrical activity recorded originates from a multitude of neurons.

Deep brain structures such as the hippocampus also generate electrical activity which cannot be assessed from the surface of the head. However, in some patients electrodes are implanted into the brain to look for the origin of epileptic seizures. Along the way, these intracerebral electrodes enable to record the EEG from intracerebral structures which are generated from few neurons only. Once the origin of epilepsy has been identified, the intracerebral electrodes are removed under general anesthesia.

Anesthetics such as propofol characteristically modify the EEG in a dose-dependant manner. More over, the propofol effect on the EEG recorded from the surface is likely to be different from the intracerebral EEG, however little is known so far. Therefore we aim to investigate the differential effect of propofol on the superficial versus intracerebral recorded EEG. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02995447
Study type Observational
Source University Hospital, Bonn
Contact Martin Soehle, MD, PhD
Phone ++49-228-287-
Email martin.soehle@ukb.uni-bonn.de
Status Recruiting
Phase N/A
Start date November 2012
Completion date December 2018
View Details
See also
  Status Clinical Trial Phase
Completed NCT04577430 - Effects of Dexmedetomidine on Cardiac Electrophysiology in Patients Under General Anesthesia During Perioperative Period N/A
Completed NCT03708692 - Menstrual Cycle Phases on Recovery and Cognitive Function
Recruiting NCT03422315 - Population Pharmacokinetics and Clinical Individual Dosage Regimen of Propofoll Injection N/A
Completed NCT02771067 - The Utility of Pulse Pressure Variation to Predict the Fluid Responsiveness During Pneumoperitoneum and Reverse-Trendelenburg Position N/A
Completed NCT05063461 - Evaluation of the Analgesia Nociception Index With Varying Remifentanil Concentrations Under Sevoflurane N/A
Completed NCT03294226 - Comparison of AuraGain With I-gel for Pediatric Patients N/A
Not yet recruiting NCT03643029 - The Accuracy of the Performance and Placement Test for Predicting Supraglottic Airway Device (SAD) Position in the Hypopharynx as Confirmed With Video Laryngoscopy N/A
Completed NCT01945411 - Assessment of Facial Measurements, the Length of Mouth Corner-mandible Angle and Incisors-mandible Angle, for Determining the Proper Sizes of Oropharyngeal Airway N/A
Completed NCT01705743 - Minimum Alveolar Concentration of Sevoflurane With Nitrous Oxide Inducing Isoelectric EEG Phase 4
Not yet recruiting NCT01678066 - A Prospective Study to Bilaterally Compare a Non-Invasive Cardiac Output Monitor N/A
Completed NCT00972491 - The Optimal Time to Put Laryngeal Mask Airway in the Mouth Under General Anesthesia N/A
Completed NCT00741507 - Unhealthy Alcohol Drinking and Anesthetic Requirement in Women N/A
Completed NCT01096212 - Efficacy and Safety of Sevofran in Patients Scheduled for Elective Surgery Under General Anesthesia Phase 4
Completed NCT00532402 - Continuous and Discontinuous Determination of Propofol Concentration in Breathing Gas N/A
Completed NCT00599066 - Intraoperative M-Entropy Measurements N/A
Completed NCT00468494 - Can Blood Glucose Levels During the Perioperative Period Identify a Population at Risk for Hyperglycemia? N/A
Recruiting NCT00492453 - Spinal Versus General Anesthesia for Laparoscopic Cholecystectomy N/A
Recruiting NCT03745079 - Correlation Between Core Temperature and Skin Temperature Measured by 3M SpotOn
Completed NCT04094376 - Comparison of Morning Operation and Evening Operation on Postoperative Sleep Quality and Pain Under General Anesthesia N/A
Enrolling by invitation NCT03672734 - Volume and pH of Gastric Contents in Patients Undergoing Gynecologic Laparoscopic Surgery During Emergence From General Anesthesia