3.5.1 Pain thresholds at 24h after surgery
A total of 10 studies involved 11 interventions reported pain thresholds
at 24h after surgery (measured by any type of QST and in g)
(Appendix4 Figure 4.1.1 ). Compared with placebo, butorphanol
(SMD=2.43, 95% CI:1.65, 3.22), magnesium sulphate (SMD=1.01, 95%
CI:0.14, 1.88) and dexmedetomidine (SMD=1.01, 95% CI:0.14, 1.88) mean
higher pain thresholds at 24h after surgery (Appendix4 Figure
4.1.2 ). The league table (Appendix4 Figure 4.1.3 ) illustrates
the results of each intervention compared to each other. In the ranking
probability plot (Appendix4 Figure 4.1.4 ), flurbiprofen plus
dexmedetomidine was ranked highest among 11 interventions whose SUCRA
values was 98.1.