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Intraoperative Infusion of Dexmedetomidine for Prevention of Postoperative Delirium in Elderly Patients

Key facts

Who runs it
Beijing Tiantan Hospital
Where
China2 sites in 1 countryChoose a country to see its sites
Trial code
Status
Completed
People taking part
420 people enrolled
Started
18 Jul 2022
Ended
30 Jun 2026
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Dexmedetomidine
  • 0.9% saline
Record updated
28 August 2026

Who can take part

Age
65 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 13 criteriaShow less

Who can take part

  • Patients undergoing selective craniotomy
  • Age ≥65 years
  • Obtain written informed consent

Who cannot take part

  • Cognitive impairment before surgery(mini-mental state examination, MMSE ≤ 26 or Montreal Cognitive Assessment, MoCA≤22)
  • Allergic to the study drug
  • History of psychotropic drugs, anticholinergic drugs, antihistamine drug and dopaminergic drugs
  • History of traumatic brain injury or neurosurgery
  • Severe bradycardia (heart rate less than 40 beats per minute), sick sinus syndrome or second-to-third degree atrioventricular block
  • Severe liver dysfunction (Child-Pugh grade C) or renal failure (requiring kidney replacement therapy)
  • Operation time less than 2 hours
  • Refusal to provide written informed consent
  • Body mass index ≤18 or ≥ 30 kg/m2
  • The functional neurosurgery

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

Postoperative delirium (POD) is a common surgical complication. The incidence is 10% to 22% in neurological procedures, and advanced age is a risk factor for neurological procedures. Many studies have shown that dexmedetomidine(DEX) may reduce the incidence of delirium in non-cardiac surgery patients and elderly patients. However, there are few studies focus on the effect of DEX on POD in elderly patients undergoing neurosurgery. The purpose of this study was to investigate the effect of DEX on POD in in elderly patients undergoing craniotomy.

The 2 groups in the trial

  • DEX groupExisting treatment, for comparison

    The DEX group patients will be received dexmedetomidine intraoperatively.

    Treatment: Dexmedetomidine

  • Placebo groupPlacebo, for comparison

    The placebo group patients will be received 0.9% saline intraoperatively.

    Treatment: 0.9% saline

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Intraoperative Infusion of Dexmedetomidine for Prevention of Postoperative Delirium in Elderly Patients Undergoing Craniotomy: a Randomized Clinical Trial
Record updated
28 August 2026