Effect of Prophylactic Application of 40Hz Transcranial Stimulation in AICU on Incidence of Postoperative Delirium in Elderly Patients Undergoing Elective Gastrointestinal Surgery
1 other identifier
interventional
98
1 country
1
Brief Summary
Postoperative delirium is an acute central nervous system dysfunction caused by surgical stress, which is manifested by postoperative acute, non-specific changes in consciousness level, attention, cognitive ability and disturbance of sleep and wake cycles. It is one of the most common surgical complications in the elderly, occurring in more than 75% of patients receiving mechanical ventilation in the intensive care unit(ICU).Exogenous 40 Hz stimulation can improve cognitive functioning.Therefore, the aim of this study was to investigate the effect of exogenous 40Hz stimulation on the incidence of postoperative delirium in elderly patients undergoing elective gastrointestinal surgery in AICU.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started May 2024
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2024
CompletedFirst Submitted
Initial submission to the registry
July 23, 2024
CompletedFirst Posted
Study publicly available on registry
August 7, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2025
CompletedOctober 28, 2024
August 1, 2024
10 months
July 23, 2024
October 24, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
The incidence of postoperative delirium
Postoperative delirium was assessed using the CAM-ICU scale.The RASS score (The Richmond Agitation-Sedation Scale) was used to assess arousal. When the patient's RASS score is not -4 /-5, delirium evaluation can continue considering the patient's wakefulness status.CAM-ICU scale contains four features (Feature 1, Feature 2, Feature 3, and Feature 4). Delirium can be diagnosed when the patient is positive for features 1, 2, 3, or 4.
Day 1, Day 2, Day 3 ,Day 4, Day 5, Day 6,Day 7 after surgery
Secondary Outcomes (3)
Blood Markers
half hour, 6hours, 24hours and 48hours after transfer to aicu
Sleep quality
8:00 to 10:00 every morning for the first three days after surgery
The incidence of pain
6hours, 24hours, 48hours after surgery
Study Arms (2)
40Hz stimulation group
EXPERIMENTALAfter admission to AICU, the experimental group was stimulated at 40Hz for 6h;
Control group
NO INTERVENTIONAfter admission to AICU, the control group was not stimulated at 40Hz ;
Interventions
Exogenous 40HZ stimulation is a physical intervention that can drive oscillations in the gamma range, and the oscillations and pulses caused at the corresponding frequency can lead to a significant reduction in β-amyloid, reverse tau hyperphosphorylation, and thereby improve the cognitive function of patients.
Eligibility Criteria
You may qualify if:
- Age ≥ 65 years old,gender not limited
- ASA classification Ⅱ \~ Ⅳ
- Elective gastrointestinal general anesthesia surgery
You may not qualify if:
- History of schizophrenia, epilepsy, Parkinson's disease, or myasthenia gravis
- Pre-operative coma, severe dementia, speech impairment or severe illness incapacitated and unable to communicate
- Delirium on admission or pre-operative delirium, brain injury
- Severely infected person
- Severe liver dysfunction (Child-Pugh C), severe renal insufficiency (preoperative dialysis)
- Severe hearing or vision impairment
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Henan People's Hospital
Zhengzhou, Henan, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 23, 2024
First Posted
August 7, 2024
Study Start
May 1, 2024
Primary Completion
March 1, 2025
Study Completion
March 1, 2025
Last Updated
October 28, 2024
Record last verified: 2024-08