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Effect of Subanesthetic Dose of S-Ketamine on Postoperative Delirium in Patients Undergoing Cardiac Surgery with Cardiopulmonary Bypass

Effect of Subanesthetic Dose of S-Ketamine on Postoperative Delirium in Patients Undergoing Cardiac Surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400082422
Enrollment
Unknown
Registered
2024-03-28
Start date
2024-04-15
Completion date
Unknown
Last updated
2025-10-20

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

Conditions

Cardiac surgery with cardiopulmonary bypass

Interventions

Trial group:Dilute esketamine with 50 mL of 0.9% saline to a concentration of 1 mg/mL. Administer esketamine 0.25 mg/kg intravenously 5 min after endotracheal intubation, followed by continuous infusi
discontinue the infusion at the end of surgery.
Control group:Dilute with 50 mL of 0.9% saline. At 5 min after endotracheal intubation, administer placebo group 0.25 mL/kg (equal volume) of normal saline intravenously, followed by continuous infusi

Sponsors

First Affiliated Hospital of Air Force Military Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Patients aged >=18 years undergoing elective cardiac surgery with cardiopulmonary bypass via median sternotomy; 2. American Society of Anesthesiologists (ASA) physical status classification II–IV; 3. New York Heart Association (NYHA) functional class II–III; 4. Body mass index (BMI) 18–30 kg/m^2; 5. Written informed consent signed by the participant.

Exclusion criteria

Exclusion criteria: 1. Aortic dissection surgery 2. Contraindications to esketamine use (glaucoma, history of hyperthyroidism, risk of increased intracranial pressure) 3. Known psychiatric disorders 4. History of dementia or preoperative Mini-Mental State Examination (MMSE) indicating cognitive impairment (based on educational level: illiterate =1.5 mg/L or requiring dialysis) 9. Uncontrolled hypertension (baseline systolic blood pressure >200 mmHg or diastolic blood pressure >110 mmHg)

Design outcomes

Primary

MeasureTime frame
Incidence of delirium within 7 days after surgery;

Secondary

MeasureTime frame
Time to first onset of delirium;Subtypes of delirium;Postoperative pain;Postoperative sleep quality;Postoperative anxiety and depression;Safety outcomes (all-cause mortality during postoperative hospitalization, new-onset myocardial infarction, postoperative stroke, acute kidney injury); incidence of esketamine-associated adverse reactions within the first 3 postoperative days, including nightmares, hallucinations, and blurred vision;Postoperative mechanical ventilation time;ICU stay time;Duration of delirium;

Countries

China

Contacts

Public ContactHou Lihong

First Affiliated Hospital of Air Force Military Medical University

909723907@qq.com+86 139 9118 3806

Outcome results

None listed

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