Postoperative Pain Monitoring With ANI in Lumbar Spine Surgery

Recruiting now · Not applicable

Conditions studied: Postoperative Pain, Lumbar Spine Surgery

In brief

This study aims to compare two different pain management methods in patients undergoing elective lumbar spine surgery. Patients are randomly assigned to receive either an ultrasound-guided erector spinae plane block (ESPB) or intravenous multimodal analgesia. Postoperative pain will be assessed using both clinical pain scores and the Analgesia Nociception Index (ANI), a non-invasive monitoring system that evaluates pain-related responses based on heart rate variability. The goal of this study is to determine which method provides better postoperative pain control.

Key facts

Study ID

NCT07455565

Run by

Akdeniz University Hospital

People needed

100

Starts

2025-12-16

Expected to finish

2026-12-01

Last updated by the study team

2026-03-06

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age between 18 and 65 years
• ASA physical status I-II
• Scheduled for elective lumbar spine surgery
• Ability to provide informed consent

You may not qualify if…

• Known allergy to study medications
• Coagulation disorders
• Infection at the block site
• Severe cardiovascular disease
• Pregnancy
• Inability to understand the study protocol

Where it is running

• Akdeniz University Faculty of Medicine Hospital — Antalya, Antalya, Turkey (Türkiye) (enrolling)

Full record on ClinicalTrials.gov

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