| Methods |
Anaesthetic drugs used: thiamylal 4mg/kg, vecuronium 0.1mg/kg, 67% N2O in O2, isoflurane, droperidol 0.625mg. Fentanyl 25microg/kg if required
Premed‐induction interval: 30
(minutes) |
| Participants |
100 |
| Interventions |
Drug(s) and dose: morphine 0.04mg/kg vs. meperidine 0.35mg/kg vs. fentanyl 0.75microg/kg vs. sufentanil 0.15microg/kg vs. placebo (intravenous) |
| Outcomes |
Times from end of anaesthesia to ambulation and discharge |
| Notes |
1) Visual analogue scale used to gauge patients' anxiety. Only sufentanil shown to be better than placebo
2) Difference from placebo? No |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Adequate sequence generation? |
Unclear risk |
Method of randomization unknown |
| Allocation concealment? |
Unclear risk |
Unclear |
