Time point (from onset) | Operation | Post-operation follow-up | ||||||
---|---|---|---|---|---|---|---|---|
Pre | Dur | Aft | Day | Day | Day | Discharge | Day 30 or | |
Day 1–2 | 2–6 | 7–10 | 10–14 |  | Day 90 | |||
Enrollment | ||||||||
 Eligibility screen | ✖ |  |  |  |  |  |  |  |
 Recruitment | ✖ |  |  |  |  |  |  |  |
 Consent | ✖ |  |  |  |  |  |  |  |
 Randomization and allocation | ✖ |  |  |  |  |  |  |  |
Interventions | ||||||||
 SGB | ✖ |  |  |  |  |  |  |  |
 Camouflage action (non-SGB) | ✖ |  |  |  |  |  |  |  |
 Block-related information | ✖ |  |  |  |  |  |  |  |
Assessments | ||||||||
 Baseline variables | ✖ |  |  |  |  |  |  |  |
 Neurological examination | ✖ |  | ✖ | ✖ | ✖ | ✖ | ✖ |  |
 Physiological parameters | ✖ | ✖ | ✖ | ✖ | ✖ | ✖ | ✖ |  |
 MMSE | ✖ |  | ✖ |  | ✖ |  | ✖ | ✖ |
 CAM-ICU | ✖ |  | ✖ | ✖ |  |  |  |  |
 mRS |  |  |  |  |  |  | ✖ | ✖ |
 TCD | ✖ |  | ✖ | ✖ | ✖ | ✖ |  |  |
 CT | ✖ |  | ✖ |  | ✖ |  | ✖ |  |
 CTA/CTP | ✖ |  |  |  | ✖ |  |  |  |
 Complications |  | ✖ | ✖ | ✖ | ✖ | ✖ | ✖ | ✖ |
 All adverse events |  | ✖ | ✖ | ✖ | ✖ | ✖ |  |  |
 Length of stay |  |  |  |  |  |  | ✖ |  |
 All-cause mortality |  |  |  |  |  |  | ✖ | ✖ |