A Comparative Study Protocol Investigating the Association Between Intraoperative Hypotension and the Use of Ring- Versus Propofol-Based Anesthesia in Elderly Patients Undergoing Non-Cardiac Surgery

we conducted this multicentre retrospective cohort study to evaluate the association between the choice of induction agent (ciprofol versus propofol) and the incidence of IOH in geriatric patients having non-cardiac surgery. We hypothesized that ciprofol use would be associated with a lower risk of clinically significant intraoperative hypotension and a reduced overall hypotension burden compared with propofol in routine clinical practice.