The effect of bright light therapy on postoperative delirium in elderly patients with preoperative depression

The effect of bright light therapy on postoperative delirium in elderly patients with preoperative depression undergoing non-cardiac surgery

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2600126279

Enrollment

Unknown

Registered

2026-06-05

Start date

2026-07-10

Completion date

Unknown

Last updated

2026-06-08

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

Conditions

Postoperative cognitive dysfunction

Interventions

Routine care group:Natural lighting in regular wards

bright light therapy group:Provide the patient with bright light therapy

Eligibility

Sex/Gender

All

Age

65 Years to 95 Years

Inclusion criteria

Inclusion criteria: 1. Age >= 65 years; 2. Elective non-cardiac surgery (general surgery, orthopedics, urology, etc.); 3. ASA grade II-III; 4. Preoperative MMSE >= 24 points; 5. Expected hospital stay >= 5 days; 6. Preoperative PHQ-9 score 5-9 points (mild depression).

Exclusion criteria

Exclusion criteria: 1. History of preoperative delirium or mental disorder; 2. Severe visual impairment or photosensitive disorders; 3. Severe liver or kidney dysfunction; 4. Users of antipsychotic drugs or melatonin preparations.

Design outcomes

Primary

Measure	Time frame
The incidence of POD;	—

Secondary

Measure	Time frame
Sleep quality;Hospitalization period;Change in the degree of depression;	—

Countries

China

Contacts

Public ContactRan Duan

Hebei General Hospital

duanran3yuan@163.com+86 311 8598 8127

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 11, 2026