Table 1 The definition and incidence of adverse events
Adverse events | Definitions | Group R (N = 41) | Group P (n = 41) | p value |
|---|---|---|---|---|
Injection pain | ‘Subjective’ assessment, patients verbally reported their pain by themselves after the first injection | 1 (2.4%) | 33 (80.5%) | < 0.001 |
Low SpO2 | Intraoperative SpO2 ≤ 95% | 4 (9.8%) | 21 (51.2%) | < 0.001 |
Bradycardia | Intraoperative HR < 55 bpm | 0 (0.0%) | 1 (2.4%) | 0.314 |
Hypotension | Intraoperative SBP<90 mmHg | 1 (2.4%) | 5 (12.2%) | 0.090 |
Total incidence of adverse events | 6 (3.7%) | 60 (36.6%) | < 0.001 | |
Postoperative dizziness | Appeared while patients stayed in the postanaesthesia care unit (PACU) | 0 (0.0%) | 10 (24.4%) | < 0.001 |
Body movement | Visible hand bending or head movement | 15 (36.6%) | 20 (48.8%) | 0.264 |