Anesthesia, Anxiety
Conditions
Keywords
drawing, color, shape, anxiety, heart rate variability
Brief summary
This study will use a factorial design to compare the effects of different colors and shapes on patients' preoperative anxiety.
Interventions
BEHAVIORALwarm color
red and yellow color picture is used
BEHAVIORALcold color
blue and green color is used
BEHAVIORALsharp shape
triangle shaped picture is used
BEHAVIORALsmooth shape
circle and curve are used
Sponsors
Zhihong LU
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients scheduled for elective surgery * age ≥18 yrs old
Exclusion criteria
* Frail patients who can not freely sit on the seat * Patients with difficulty in communication * Patients with color vision deficiency * Patients with injury or neurological dysfunction influencing function of hand * Patients with severe vision deficiency
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| score of visual analogue scale (VAS) of anxiety | at the end of intervention, approximately 10 minutes before start of anesthesia | The Visual Analog Scale for Anxiety (VAS-A) is a single-item, quick-assessment tool consisting of a 100-mm horizontal line anchored by "no anxiety" at the left end (0 mm) and "worst possible anxiety" at the right end (100 mm). Patients were instructed to mark the point that best represented their current level of anxiety. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| heart rate | at the end of intervention, approximately 10 minutes before start of anesthesia | — |
| score of State-Trait Anxiety Inventory-State (STAI-S) | at the end of intervention, approximately 10 minutes before start of anesthesia | The State-Trait Anxiety Inventory-State (STAI-S) is a 20-item self-report questionnaire designed to assess transient or situational anxiety levels. Each item is rated on a 4-point Likert scale ranging from 1 ("not at all") to 4 ("very much so"), with total scores ranging from 20 to 80. Higher scores indicate higher levels of anxiety. |
| score of visual analogue scale (VAS) of anxiety | Before anesthesia induction, approximately 1 minute before start of anesthesia | The Visual Analog Scale for Anxiety (VAS-A) is a single-item, quick-assessment tool consisting of a 100-mm horizontal line anchored by "no anxiety" at the left end (0 mm) and "worst possible anxiety" at the right end (100 mm). Patients were instructed to mark the point that best represented their current level of anxiety. |
| Engagement level during the painting task | from start of painting to end of painting , approximately 10 minutes | measured by a 0-10 subjective rating scale, 0 is not engaged, 10 is totally engaged |
| tachycardia | from admitted into the operating room to start of anesthesia, at an average of 15 minutes | heart rate over 100 beats per minute |
| hypertension | from admitted into the operating room to start of anesthesia, at an average of 15 minutes | systolic blood pressure increased by more than 20% of baseline. baseline blood pressure is measured in waiting area |
| Visual analogue score of sleep quality | at 24 hours after surgery | Visual analogue score of sleep quality is from 0 to 10, 0 is the worst quality, 10 is the best quality |
| Score of satisfaction to anesthesia | at 24 hours after surgery | Score of satisfaction to anesthesia is from 0 to 10, 0 is the worst quality and totally unsatisfied, 10 is the best quality and fully satisfied |
Contacts
CONTACTZhihong Lu
Outcome results
None listed