Clinical Research Directory

Electroencephalogram Characteristics of Surgical Anesthetized Patients and Postoperative Dilirium

Objective: To construct a perioperative EEG database for elderly patients under general anesthesia and to explore the relationship between their EEG spectrum characteristics and the occurrence and severity of postoperative delirium. Content: This study aims to investigate elderly patients undergoing elective orthopedic surgery under general anesthesia with endotracheal intubation, analyze the changes in the perioperative EEG spectrum and its correlation with the occurrence of postoperative delirium, and explore the relationship between perioperative EEG changes and the occurrence of postoperative delirium. Methods: Patients aged 60 years or older who were scheduled to undergo orthopedic joint replacement or spinal surgery and had a hospital stay of more than 2 days were selected. All patients underwent MMSE and 3D-CAM assessment before surgery. Before anesthesia induction, anesthesia depth monitoring electrodes were placed on the patient\'s occipital or frontal temporal region, and EEGs were collected in awake and quiet states, under general anesthesia, and during anesthesia recovery. In the PACU, the score was calculated based on the CAM-ICU scale. The patients were assessed with the 3D-CAM scale for awakening once a day at 15:00-20:00 the day before surgery, and twice a day at 9:00-11:00 and 15:00-20:00 during 1-5 days after surgery, or at any time when obvious delirium symptoms appeared, unless discharged from the hospital or taking sedatives (RASS\<-3). Ten minutes after the assessment, the occipital EEG was monitored when the patient was conscious and quiet, or when obvious delirium appeared. According to the test results of the 3D-CAM scale, it was determined whether the patient had postoperative delirium, and the patients were divided into the delirium group and the non-delirium group. The EEG characteristics of the two groups of patients were analyzed before, during, and after surgery. Research significance: The results of this study can provide objective indicators and theoretical basis for monitoring and diagnosing the occurrence and development of POD, which can help clinicians to identify patients with increased risk of delirium at an early stage, adjust the plan in time, and change the triggering risk factors of POD.

General Anesthetics-related Changes in Prefrontal EEG During Pediatric Surgical Anesthesia

The change profiles of indices derived from pEEG such as phase-amplitude coupling and bicoherence based on individual general anesthetics in children have not been examined in previous literature. Whether those indices have the abilities to predict individual drug-related anesthesia depth in children need to be explored.

Does Stress Change EEG Measures in Students: A Feasibility Study

Psychological stress is a frequent human affection and has a considerable impact on modern society, and tertiary-level students often report increased stress levels as the semester progresses. While many questionnaires assess psychological stress, they do not capture objective data. Much research has shown that electroencephalography (EEG) can capture objective markers of stress, and recent studies have shown that EEG can even classify stress levels. This study aims to assess the feasibility of using EEG to objectively assess stress over the course of a semester of work in chiropractic students engaged in a Masters level course in Scotland.

Transcranial Electrical Stimulation Targeting the Cerebellum for the Treatment of Refractory Temporal Lobe Epilepsy

Study the therapeutic effect and potential neural mechanisms of transcranial electrical stimulation targeting the cerebellum for the treatment of refractory temporal lobe epilepsy through MRI and EEG.