Analgesia Nociception Index Guided Remifentanil Administration During Propofol Anesthesia for Laparoscopic Surgery

Analgesia Nociception Index Guided Remifentanil Administration During Propofol Anesthesia for Laparoscopic Surgery : Multicenter Randomized Clinical Trial

The Physiodoloris (MetroDoloris, Lille, France) monitor, CE marqued, uses the ECG signal in order to compute the Analgesia Nociception Index (ANI) which has been shown to measure the relative parasympathetic tone, and hence to reflect the analgesia/nociception balance during general anesthesia. The primary endpoint of this randomized multicenter study is to measure whether there is a benefit to use the ANI in order to adapt remifentanil administration during propofol anesthesia for laparoscopic surgery. Primary endpoint : lesser proportion of patients presenting with at least one episode of hemodynamic reactivity, hypotension or bradycardia in the ANI guided group vs control group ?

The Physiodoloris (MetroDoloris, Lille, France) monitor, CE marqued, uses the ECG signal in order to compute the Analgesia Nociception Index (ANI) which has been shown to measure the relative parasympathetic tone, and hence to reflect the analgesia/nociception balance during general anesthesia. The primary endpoint of this randomized multicenter study is to measure whether there is a benefit to use the ANI in order to adapt remifentanil administration during propofol anesthesia for laparoscopic surgery. Primary endpoint is: lesser proportion of patients presenting with at least one episode of hemodynamic reactivity, hypotension or bradycardia in the ANI guided group vs control group ?

Inclusion Criteria:

• laparoscopic cholecystectomy or gynecological laparoscopic surgery
• ASA I or II
• adult patient
• body mass index between 17 and 33 kg/m2

Exclusion Criteria:

• pregnancy
• arrhythmia
• pace maker
• diabetes mellitus
• dysautonomia
• treatment with beta blocking agents