The Impact of Preoperative Suggestion on Dreaming

NCT06609538 | Completed

• 1 other identifier: Wonkwang UH15
• Study Type: interventional
• Target: 250
• Locations: 1 country
• Sites: 1

Brief Summary

Recent studies have shown that positive preoperative suggestions can significantly influence the quality of dreams and reduce the incidence of unpleasant dreams during sedation with agents like ketamine and propofol.

Conditions

Dream, Day; Ketamine Adverse Reaction; Propofol Adverse Reaction

Keywords

Suggestion; dream incidence; dream contents; emotional tone; patient satisfaction

Outcome Measures

Primary Outcomes (2)

• Incidence of Dreaming

  The "Dreaming and Cognition Evaluation Questionnaire" will be used.questionnaire evaluates the incidence of dreaming, as well as the dream's content, emotional tone (rated on a 1-5 scale from very unpleasant to very pleasant), memorability, visual vividness, intensity, and other qualitative aspects such as sound, movement, and emotional significance.

  Dreaming will be assessed immediately after full awakeness in the Post-Anesthesia Care Unit (PACU).

• Quality of Dreaming

  The "Dreaming and Cognition Evaluation Questionnaire" will be used. This questionnaire evaluates the incidence of dreaming, as well as the dream's content, emotional tone (rated on a 1-5 scale from very unpleasant to very pleasant), memorability, visual vividness, intensity, and other qualitative aspects such as sound, movement, and emotional significance.

  Dreaming will be assessed immediately in the Post-Anesthesia Care Unit (PACU).

Secondary Outcomes (2)

• Satisfaction with Care

  Satisfaction will be assessed immediately after full awakeness in the Post-Anesthesia Care Unit (PACU)

• Adverse events

  Monitoring will be continuous with regular vital signs recorded every 5 minutes during surgery and every 15 minutes in the PACU.

Study Arms (4)

Control Group with Propofol

ACTIVE COMPARATOR

Receives standard preoperative instructions and propofol infusion.

Other: Control Group

Suggestion Group with Propofol

EXPERIMENTAL

Receives positive preoperative suggestions and propofol infusion.

Other: Suggestion Group

Control Group with Ketamine

ACTIVE COMPARATOR

Receives standard preoperative instructions and ketamine infusion.

Other: Control Group

Suggestion Group with Ketamine

EXPERIMENTAL

Receives positive preoperative suggestions and ketamine infusion.

Other: Suggestion Group

Interventions

Control Group OTHER

Receives standard preoperative instructions and propofol or ketamine infusion.

Also known as: Propofol, Ketamine

Control Group with Ketamine; Control Group with Propofol

Suggestion Group OTHER

Receives positive preoperative suggestions and propofol or ketamine infusion.

Also known as: Propofol, Ketamine

Suggestion Group with Ketamine; Suggestion Group with Propofol

Eligibility Criteria

• Age: 20 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Adult patients aged 20-65 years.
• ASA physical status I-III.
• Scheduled for elective spinal anesthesia or brachial plexus block.
• Fluent in Korean.

You may not qualify if:

• Use of any medication, including premedication, within 12 hours before surgery.
• Cognitive impairments or psychiatric disorders (including a history of unpleasant dreams or nightmares).
• Current use of sedatives or hypnotics.
• History of severe or recurrent nightmares.

Sponsors & Collaborators

• Wonkwang University Hospital: lead

Study Sites (1)

WonwangUH

Iksan, Please Select, 54538, South Korea

Location

MeSH Terms

Conditions

Patient Satisfaction

Interventions

Control Groups; Propofol; Ketamine

Condition Hierarchy (Ancestors)

Treatment Adherence and Compliance; Health Behavior; Behavior

Intervention Hierarchy (Ancestors)

Epidemiologic Research Design; Epidemiologic Methods; Investigative Techniques; Research Design; Methods; Phenols; Benzene Derivatives; Hydrocarbons, Aromatic; Hydrocarbons, Cyclic; Hydrocarbons; Organic Chemicals; Cyclohexanes; Cycloparaffins; Hydrocarbons, Alicyclic

Study Officials

• Cheol Lee, M.D.,Ph.D

  Wonkwang University Hospital

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
• Purpose: SUPPORTIVE CARE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor, M.D., Ph.D

Model Details: 1. Control Group with Propofol: Receives standard preoperative instructions and propofol infusion. 2. Suggestion Group with Propofol: Receives positive preoperative suggestions and propofol infusion. 3. Control Group with Ketamine: Receives standard preoperative instructions and ketamine infusion. 4. Suggestion Group with Ketamine: Receives positive preoperative suggestions and ketamine infusion.

Study Record Dates

• First Submitted: September 22, 2024
• First Posted: September 24, 2024
• Study Start: September 19, 2024
• Primary Completion: November 25, 2024
• Study Completion: January 30, 2025
• Last Updated: February 25, 2025

Record last verified: 2025-02

Locations

KR (1)