The proposed study compares two anesthesia techniques; the hypothesis being tested is that titrating sufentanil based on the CARDEAN® index (titrated OSA) does not increase post-operative morphine consumption compared to opioid-free anesthesia (OFA). This CARDEAN®-guided titrated anesthesia approach could potentially allow for hospital discharge as early as 24 hours post-operatively and is compatible with ERAS protocols. The primary objective is to demonstrate that sufentanil administration guided by the CARDEAN® index (titrated OSA) does not increase postoperative morphine consumption compared to opioid-free anesthesia (OFA). This is a prospective, single-center, randomized, single-blind, non-inferiority study.
Two groups of 70 patients each (140 patients in total) are compared based on the type of intraoperative analgesia: titrated OSA (Arm 1) versus OFA (Arm 2).
Randomization will be performed at a 1:1 ratio and stratified by surgical approach (anterior or lateral approach).
Men and women
Patient aged at least 18 years
Signed informed consent
American Society of Anesthesiologists (ASA) Class 1 to 3
ASA Class 4 or 5
Emergency hip surgery
Indication for an anesthesia technique other than general anesthesia (patient preference, benefit-risk ratio, etc.)
Permanent cardiac arrhythmia or permanent cardiac pacing (invalid CARDEAN® index)