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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
TRIPLE
Enrollment
250
Receives standard preoperative instructions and propofol or ketamine infusion.
Receives positive preoperative suggestions and propofol or ketamine infusion.
WonwangUH
Iksan, Please Select, South Korea
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.
Time frame: 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.
Time frame: Dreaming will be assessed immediately in the Post-Anesthesia Care Unit (PACU).
Satisfaction with Care
A 101-point numerical rating scale included in the "Dreaming and Cognition Evaluation Questionnaire" will be used to measure patient satisfaction with the overall care and sedation experience.
Time frame: Satisfaction will be assessed immediately after full awakeness in the Post-Anesthesia Care Unit (PACU)
Adverse events
Any complications such as hypotension,or bradycardia, will be recorded systematically.
Time frame: Monitoring will be continuous with regular vital signs recorded every 5 minutes during surgery and every 15 minutes in the PACU.
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