Relationship Between ANI, Anxiety, and Pain in Conscious Hernia Patients Undergoing CSEA

Relationship Between Analgesia Nociception Index, Anxiety, and Pain in Conscious Hernia Patients Undergoing Combined Spinal Epidural Anesthesia

Analgesia Nociception Index can be used to detect noxious stimulation during general anesthesia.The aim of this study is to observe ANI under combined spinal epidural anesthesia procedures in conscious hernia patients.

Analgesia Nociception Index which is derived by heart rate variability, can be used to detect noxious stimulation during general anesthesia. However, the impact of anxiety on ANI evaluation and the correlation between ANI, pain, and anxiety in awake patients remains unclear. This study aimed to investigate the correlation between ANI, pain, and anxiety in conscious hernia patients undergoing combined spinal epidural anesthesia procedures.

Inclusion Criteria:

• Age between 18- 80 years
• ASA physical status I or II
• Scheduled for inguinal hernia, umbilical hernia or incisional repair under CSEA
• Written informed consent

Exclusion Criteria:

• Use of CNS-active medication or abuse of alcohol
• History of cardiac arrhythmia
• Contraindications of combined spinal epidural anesthesia
• Previous exposure to CSEA or surgery