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The association of BIS value during anesthesia maintenance and prognosis in elderly non-cardiac surgery patients: A retrospective multicenter study

The association of BIS value during anesthesia maintenance and prognosis in elderly non-cardiac surgery patients: A retrospective multicenter study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2300078325
Enrollment
Unknown
Registered
2023-12-05
Start date
2023-12-05
Completion date
Unknown
Last updated
2024-12-09

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

Conditions

Noncardiac Surgery

Interventions

Trail group:no

Sponsors

West China Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Aged >= 65 years old; 2. The American Society of anesthesiologists (ASA) I - IV; 3. Elective non-cardiac surgery with general anesthesia; 4. Duration of anesthesia > 2 hours; 5. BIS was used for intraoperative monitoring.; 6. Patients with completed postoperative 1-year survival status.

Exclusion criteria

Exclusion criteria: 1. Complicated with cerebrovascular disease; 2. Combined with central nervous system diseases (including but not limited to infection, tumor, trauma, metabolic lesions); 3. Are using psychiatric medication; 4. Alcohol or opioid abuse; 5. Intraoperative use of ketamine or nitrous oxide; 6. Intraoperative wake-up; 7. Intraoperative BIS data missing > 20%; 8. Missing data due to various reasons.

Design outcomes

Primary

MeasureTime frame
1-year mortality;—

Countries

China

Contacts

Public ContactQian Li

West China Hospital of Sichuan University

hxliqian@foxmail.com+86 189 8060 1635

Outcome results

None listed

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