Skip to content

The relationship between pupil variability and perioperative opioid consumption and pain during general anesthesia

The relationship between pupil variability and perioperative opioid consumption and pain during general anesthesia

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2100054855
Enrollment
Unknown
Registered
2021-12-28
Start date
2021-12-01
Completion date
Unknown
Last updated
2022-12-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Perioperative pain

Interventions

Control group:No
Experimental group:Adjust opioid dosage according to pupil variance index

Sponsors

Bethune International Peace Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. ASA grade I-II; 2. Aged 18-80 years; 3. Body mass index (BMI) 20-30 kg/m^2; 4. With normal cognitive function.

Exclusion criteria

Exclusion criteria: 1. A history of ophthalmic diseases (such as Addy syndrome, Horner's syndrome or Sjogren's disease); 2. Neurological or metabolic diseases; 3. Ophthalmic surgery, medications that interfere with the autonomic nervous system (such as beta-blockers, anticholinergic drugs); 4. Use of chronic pain or preoperative analgesics within 2 weeks, use of pacemaker or arrhythmia; 5. History of allergy to narcotic drugs; 6. COVID - 19; 7. Cerebral hemorrhage or stroke; 8. Dysfunction of important organs such as heart, brain and kidney; 9. A history of substance abuse or mental illness; 10. A history of depression or sleep disorders requiring sedatives, antidepressants or other medications; 11. Patients or family members refuse.

Design outcomes

Primary

MeasureTime frame
Numeric Rating Scale, NRS;Intraoperative dosage of remifentanil;

Secondary

MeasureTime frame
Remifentanil or propofol consumption rate;PACU (postanesthesia care unit) residence time;

Countries

China

Contacts

Public ContactWang Jingbao

Bethune International Peace Hospital

15830185510@163.com+86 15830185510

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026