Correlation Between qNOX and Analgesia Nociception Index (ANI) Values During General Anesthesia

Correlation Between qNOX Values of the CONOX Monitor and Analgesia Nociception Index (ANI) Values During General Anesthesia Conducted With Propofol and Remifentanil TCI

qNOX and ANI are two indexes evaluting the analgesia conduction during general anesthesia.

No trials have compared them, so with this trial authors want to explore the correlations between them.

qNOX and ANI are two indexes evaluting the anaglesia conduction during general anesthesia.

Even if the aim is the same (to measure the nociception level) these indexes utilize different algorithm: the qNOX is derived by the electroencephalogrm (EEG), the ANI is derived by heart rate variation.

No trials have compared them, so with this trial authors want to explore the correlations between them, and if altered values of one of them is stronger related to postoperative pain and delirium.

Inclusion Criteria:

• Undergo general anaesthesia with Targeted Controlled Infusion of Propofol (Eleveld model) and remifentanil (Eleveld model)

Exclusion Criteria:

• Neurological disease
• Psychiatric disease
• Obesity
• Regional anesthesia performed