Patient preference for intraoperative opioid use and early recovery after noncardiac surgery : protocol for a randomised factorial design trial of opioid-free versus opioid-based anaesthesia (the PERFECT trial)

Gricourt, Y, Boulos, N M, Delaporte, A, Alexander, B, Besada, S, Bakhit, R, Toukhtarian, A, Neuman, I, Pearce, D, Nourian, M M, Chebishian, A, Zhou, A, Boktor, J, Mayanja, D, Grogan, T, Boldt, D, Cannesson, M, Forget, P & Joosten, A 2025, 'Patient preference for intraoperative opioid use and early recovery after noncardiac surgery : protocol for a randomised factorial design trial of opioid-free versus opioid-based anaesthesia (the PERFECT trial)', BJA Open, vol. 15, 100420. https://doi.org/10.1016/j.bjao.2025.100420