Research on the Correlation and Mechanism between Sleep Disorders in Elderly Patients and Postoperative Cognitive Dysfunction

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2500105826

Enrollment

Unknown

Registered

2025-07-11

Start date

2025-08-01

Completion date

Unknown

Last updated

2025-07-14

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

Conditions

cognitive dysfunction

Interventions

Sleep disorder group:none

Non-sleep disorder group:none

Eligibility

Sex/Gender

All

Age

65 Years to 90 Years

Inclusion criteria

Inclusion criteria: Patients aged >= 65 years old, scheduled for elective non-cardiac surgery (general surgery, orthopedics, urology, etc.). MMSE score >= 21 points on the day before surgery (excluding baseline severe cognitive impairment). Informed consent signed.

Exclusion criteria

Exclusion criteria: Preoperative diagnosis of dementia, mental illness or long-term use of sedative drugs. Emergency surgery, preoperative admission to the intensive care unit (ICU). Conversion to cardiac surgery or cancellation of surgery during the operation.

Design outcomes

Secondary

Measure	Time frame
Pittsburgh Sleep Quality Index, PSQI;Postoperative cognitive function;	—

Primary

Measure	Time frame
Postoperative delirium incidence rate;	—

Countries

China

Contacts

Public ContactLijie Zhou

The First Hospital of Qinhuangdao

zljqhd0811@163.com+86 188 3380 3651

Outcome results

None listed

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