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Effect of Thiamine on Postoperative Delirium in Elderly Patients Undergoing Major Abdominal Surgery

Effect of Thiamine on Postoperative Delirium in Elderly Patients Undergoing Major Abdominal Surgery

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600121658
Enrollment
Unknown
Registered
2026-04-01
Start date
2026-04-01
Completion date
Unknown
Last updated
2026-04-14

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

Conditions

Postoperative delirium

Interventions

Thiamine group:After the end of general anesthesia induction, dilute 200mg of thiamine in 100ml of saline and infuse intravenously
Saline group:After the end of general anesthesia induction, 100 ml of normal saline is administered intravenously.

Sponsors

The First Affiliated Hospital of University of Science and Technology of China
Lead Sponsor

Eligibility

Sex/Gender
All
Age
70 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 70 years, any gender; 2. Patients planning to undergo major abdominal surgery (elective major surgery involving the gastrointestinal tract, with an expected duration of more than 90 minutes. Surgery types include colonic, rectal, or small intestine resections; pancreatic and intestinal resections; gastrectomy (non-obesity surgery); esophagectomy (non-obesity surgery); obesity surgery; and other surgeries involving intestinal resection).

Exclusion criteria

Exclusion criteria: 1. Individuals prone to allergies or known to be allergic to thiamine; 2. Those with a history of Wernicke’s encephalopathy, alcohol dependence, or long-term thiamine supplementation; 3. Those with severe dementia or a history of mental illness before surgery; 4. Patients who already show cognitive impairment in preoperative screening (Montreal Cognitive Assessment score below 26); 5. Those with vision, hearing impairments, or communication difficulties; 6. Those with severe cardiovascular disease or severe liver and kidney dysfunction.

Design outcomes

Primary

MeasureTime frame
Incidence of delirium within 7 days after surgery;

Secondary

MeasureTime frame
Severity of postoperative delierum;Duration of postoperative delirium;Sleep score 7 days after surgery;Depression score 7 days after surgery;Anxiety score 7 days after surgery;Incidence of nausea and vomiting within 24 hours after surgery;

Countries

China

Contacts

Public ContactYu Wang

The First Hospital of University of Science and Technology of China

yuwang9409@sina.com+86 187 1565 1223

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 17, 2026