Effect of a Bolus of 10 µg/kg of Alfentanil on the Pupillary Pain Index

Effect of a Bolus of 10 µg/kg of Alfentanil on the Pupillary Pain Index

This study aims to assess the Pupillary Pain Index before and after a bolus of alfentanil in children under general anesthesia, before skin incision.

Inclusion Criteria:

• Elective surgery under general anesthesia
• Written informed consent

Exclusion Criteria:

• Chronic pain
• Preoperative analgesic drug
• Neurologic disease
• Ophtalmic disease