High initial concentration showed no clear difference in patient movement compared with low initial concentration (low certainty).
High initial concentration showed no clear difference in bradycardia compared with low initial concentration (low certainty).
Propofol may leads to higher adverse event ‐ haemodynamic changes, number of events compared with sevoflurane (low certainty).
Propofol may leads to lower adverse event ‐ nausea and vomiting, number of events compared with sevoflurane (low certainty).
Propofol showed no clear difference in adverse event ‐ shivering, number of events compared with sevoflurane (low certainty).
Propofol showed no clear difference in adverse event ‐ pain, visual analogue scale compared with sevoflurane (low certainty).
Propofol showed no clear difference in brain relaxation, scales or grades compared with sevoflurane (low certainty).
Induction and maintenance: sevoflurane + nitrous oxide (N2O) may leads to higher postoperative nausea and vomiting compared with propofol + N2O (low certainty).
It is very uncertain whether induction and maintenance: sevoflurane + nitrous oxide (N2O) changes postoperative behavioural disturbances Different scales compared with propofol + N2O (very low certainty).
It is very uncertain whether induction and maintenance: sevoflurane + nitrous oxide (N2O) changes intraoperative and postoperative respiratory and cardiovascular… compared with propofol + N2O (very low certainty).