Is Dexmedetomidine Associated With a Lower Incidence of Postoperative Delirium When Compared to Propofol or Midazolam in Cardiac Surgery Patients

May 23, 2022 updated by: Stanford University

ICU Delirium: Can Dexmedetomidine Reduce Its Incidence?

The purpose of this chart review study is to determine whether the use of dexmedetomidine, a selective α2-adrenergic receptor agonist with sedative, analgesic, and antinociceptive properties, would be associated with a lower incidence of delirium when compared to propofol and midazolam. We hypothesize that sedation with dexmedetomidine following cardiac surgery with CPB will be associated with a lower incidence of postoperative delirium.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Delirium is the most common psychiatric syndrome found in the general hospital setting. Between 32 - 80% of cardiac surgery patients may experience post-operative delirium. Because failure to recognize delirium leads to increased morbidity and mortality and prolonged hospital stays, there are compelling clinical and financial reasons to improve the identification and treatment of delirium. Dexmedetomidine, a selective alpha2-adrenergic receptor agonist, may be an alternative to current postoperative sedation when it comes to lowering the incidence of delirium.

Comparisons: The use of postoperative (at sternal closure) dexmedetomidine will be compared to current standards of care propofol and midazolam for postoperative sedation.

Study Type

Observational

Enrollment (Actual)

90

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Stanford, California, United States, 94305
        • Stanford University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 89 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Cardiac surgery patients

Description

Inclusion Criteria:

  1. Diagnosis of a coronary artery disease, cardiac valve disease, or vascular problems requiring elective surgical intervention
  2. Age older than 18 years of age, less than 90 years of age
  3. Fluency in English, and willingness to participate in the study
  4. No history of recent (< 3 months) of alcohol or drug abuse
  5. No pre-operative evidence of heart block
  6. No history of dementia, schizophrenia, or post-traumatic stress disorder

Exclusion Criteria:

  1. A preexisting diagnoses of dementia, schizophrenia, active or recent alcohol or drug abuse/dependence; post-traumatic stress disorder; acute intoxication (i.e., positive urine drug and/or alcohol test at the time of initial evaluation or upon hospitalization for surgery)
  2. Age younger than 18, or older than 89 years of age
  3. Inability to understand enough English to complete required diagnostic testing
  4. Unwillingness to participate in the study
  5. Inability of subject or surrogate to consent.
  6. Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Propofol
Drug: Propofol
Propofol administered as part of anesthesia in cardiac surgery patients
Dexmedetomidine
Drug: Dexmedetomidine
Dexmedetomidine administered as part of anesthesia in cardiac surgery patients
Other Names:
  • Precedex
Midazolam
Drug: Midazolam
Midazolam administered as part of anesthesia in cardiac surgery patients

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Postoperative Delirium (DSM-IV criteria)

Secondary Outcome Measures

Outcome Measure
Length of Stay (hospital and ICU), use of as needed medications

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Stanford University

Collaborators

Abbott

Investigators

  • Principal Investigator: José R Maldonado, MD, Stanford University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2002

Primary Completion (Actual)

January 1, 2004

Study Completion (Actual)

April 1, 2004

Study Registration Dates

First Submitted

January 3, 2007

First Submitted That Met QC Criteria

January 3, 2007

First Posted (Estimate)

January 4, 2007

Study Record Updates

Last Update Posted (Actual)

May 27, 2022

Last Update Submitted That Met QC Criteria

May 23, 2022

Last Verified

May 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 77815

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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