|
Timepoint
|
Screening
|
Baseline
|
Intervention
|
Operation
|
Follow-up
|
|---|
|
Before
|
After
|
Before
|
During
|
30 min after endoscopy
|
Day 7
|
|---|
|
Basic information
|
|
Informed consent
|
X
| | | | | | | |
|
Inclusion/exclusion
|
X
|
X
| | | | | | |
|
Interventions
|
|
EA
| | |
X
|
X
| | | | |
|
SEA
| | |
X
|
X
| | | | |
|
Assessments
|
|
Primary outcome
|
|
Discomfort VAS
| | | | | | |
X
| |
|
Secondary outcomes
|
|
Discomfort VAS
| | | | | | |
X
|
X
|
|
STAI-S6
| | |
X
|
X
| | | | |
|
APAIS
| | |
X
|
X
| | | | |
|
HR BP and SpO2
| | | | |
X
|
X
|
X
| |
|
Preference in a future endoscopy
| | | | | | |
X
|
X
|
|
The duration of the gastroscopy
| | | | | | |
X
| |
|
The number of biopsies
| | | | | | |
X
| |
|
Others
|
|
Adverse events
| | |
X
|
X
|
X
|
X
|
X
|
X
|
|
Patient satisfaction
| | | | | | |
X
| |
|
Success of blinding
| | | | | | |
X
| |
- EA electroacupuncture, SEA sham electroacupuncture, VAS visual analogue scales, STAI-S6 six-item short form of the State-Trait Anxiety Inventory, APAIS Amsterdam Pre-operative Anxiety and Information Scale, HR heart rate, BP blood pressure, SpO2 oxygen saturation
