The Impact of Preoperative Suggestion on Dreaming

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

250 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-09-19

Study Completion Date

2025-01-30

Brief Summary

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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.

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Detailed Description

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Cheong et al. demonstrated that a simple positive suggestion before ketamine administration could reduce unpleasant dreams, while Kim et al. found that propofol, compared to midazolam, led to more vivid and memorable dreams, along with similar satisfaction levels in patients. This study aims to extend these findings by comparing the effects of propofol and ketamine sedation on dreaming during anesthesia, with a focus on how preoperative suggestions might influence dream content, emotional tone, and patient satisfaction.

Conditions

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Dream, Day Ketamine Adverse Reaction Propofol Adverse Reaction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

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.

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Control Group with Propofol

Receives standard preoperative instructions and propofol infusion.

Group Type ACTIVE_COMPARATOR

Control Group

Intervention Type OTHER

Receives standard preoperative instructions and propofol or ketamine infusion.

Suggestion Group with Propofol

Receives positive preoperative suggestions and propofol infusion.

Group Type EXPERIMENTAL

Suggestion Group

Intervention Type OTHER

Receives positive preoperative suggestions and propofol or ketamine infusion.

Control Group with Ketamine

Receives standard preoperative instructions and ketamine infusion.

Group Type ACTIVE_COMPARATOR

Control Group

Intervention Type OTHER

Receives standard preoperative instructions and propofol or ketamine infusion.

Suggestion Group with Ketamine

Receives positive preoperative suggestions and ketamine infusion.

Group Type EXPERIMENTAL

Suggestion Group

Intervention Type OTHER

Receives positive preoperative suggestions and propofol or ketamine infusion.

Interventions

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Control Group

Receives standard preoperative instructions and propofol or ketamine infusion.

Intervention Type OTHER

Suggestion Group

Receives positive preoperative suggestions and propofol or ketamine infusion.

Intervention Type OTHER

Other Intervention Names

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Propofol Ketamine Propofol Ketamine

Eligibility Criteria

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Inclusion Criteria

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

Exclusion Criteria

* 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.

Minimum Eligible Age

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes