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Ketamine and Dexmedetomidine for Delirium in Joint Arthroplasty

NCT06963294 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2025-05-09

No results posted yet for this study

Summary

This prospective, randomized, double-blind, placebo-controlled clinical trial aims to evaluate the effects of intraoperative ketamine and dexmedetomidine on the incidence of postoperative delirium (POD) and postoperative cognitive dysfunction (POCD) in patients undergoing total joint arthroplasty. Given the high incidence of neurocognitive complications in elderly patients following major orthopedic surgeries, neuroprotective strategies during anesthesia are of growing interest. Both ketamine and dexmedetomidine have shown potential in reducing neuroinflammation and improving postoperative cognitive outcomes in previous studies.

Eighty adult patients (ASA I-III, aged 18-100) scheduled for elective total hip or knee arthroplasty under spinal anesthesia will be randomized into four groups: control (saline infusion), ketamine infusion, dexmedetomidine infusion, and combined ketamine + dexmedetomidine. Cognitive assessments will be performed preoperatively and on postoperative days 2 and 15 using the Mini Mental State Examination (MMSE). Delirium assessments will be conducted using the Confusion Assessment Method (CAM) postoperatively on days 1, 3, and 15.

Secondary outcomes include perioperative levels of cortisol, CRP, and fibrinogen, as well as postoperative pain scores (VAS) and analgesic consumption. The results are expected to clarify whether intraoperative administration of ketamine or dexmedetomidine can reduce the incidence of POD/POCD and improve postoperative recovery.

Conditions

  • Postoperative Delirium
  • Postoperative Cognitive Dysfunction

Interventions

DRUG

Ketamine

Ketamine will be administered as an intravenous infusion at 0.1 mg/kg/hour during surgery

Sponsors & Collaborators

  • Istinye University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-05-05
Primary Completion
2026-06-15
Completion
2026-07-15

Countries

  • Turkey (Türkiye)

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06963294 on ClinicalTrials.gov