Working…
COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC: https://www.coronavirus.gov.

Get the latest research information from NIH: https://www.nih.gov/coronavirus.
ClinicalTrials.gov
ClinicalTrials.gov Menu

MIND-ICU Study: Delirium and Dementia in Veterans Surviving ICU Care

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00400062
Recruitment Status : Completed
First Posted : November 16, 2006
Last Update Posted : April 19, 2019
Sponsor:
Collaborator:
Vanderbilt University Medical Center
Information provided by (Responsible Party):
VA Office of Research and Development

Brief Summary:
This will be the first large cohort study to define the epidemiology of and identify modifiable risk factors for long-term CI and functional deficits of ICU survivors. The investigators will measure the independent contribution of risk factors such as delirium and exposure to sedative and analgesic medications to the incidence of long-term CI, controlling for established risk factors (e.g., age, pre-existing CI, and apoE genotype). Defining the contributions of these risk factors will make it possible to develop preventive and/or treatment strategies to reduce the incidence, severity and/or duration of long-term CI and improve functional recovery of patients with acute critical illness.

Condition or disease
Delirium Aging Dementia

Detailed Description:
Advances in critical care have led to improved survival among those admitted to intensive care units (ICUs). However, survival is lower among those who develop ICU delirium, and the quality of life among survivors may be affected by post-ICU long-term cognitive impairment (CI) that lasts months to years. Long-term CI has been studied predominantly following cardiopulmonary bypass. In the much larger group of medical and general surgical ICU patients, the extent of this problem and its relationship to health-related quality of life is poorly characterized. Evidence from 6 pilot cohorts (including the investigators') totaling ~300 patients suggests that an astonishing 30% to 80% of ICU survivors experience long-term CI functionally equivalent to mild/moderate dementia although it may not be progressive (and thus will be referred to as long-term CI). Interestingly, this cognitive impairment arises independent of severity of illness, and older patients appear particularly prone. The investigators' work and the work of others have shown that delirium is a major independent risk factor for impaired cognitive function at hospital discharge and increased mortality at 6 months. While it is not clear whether delirium itself is injurious to the brain or is simply a marker of brain injury, it is clear that the onset of delirium in the ICU should not be considered innocuous; rather, it may be a determinant of long-term CI and health-related quality of life. Having spent the last 8 years studying delirium and drug exposure during acute phases of critical illness and long-term CI after hospitalization, the investigators are thoroughly prepared to continue the next phases of investigation in VA (Department of Veterans Affairs) patients, many of whom are older and disproportionately at risk for adverse outcomes following ICU care.

Layout table for study information
Study Type : Observational
Actual Enrollment : 800 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: MIND-ICU Study: Delirium and Dementia in Veterans Surviving ICU Care
Actual Study Start Date : July 1, 2007
Actual Primary Completion Date : December 1, 2010
Actual Study Completion Date : December 1, 2017

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Delirium Dementia

Group/Cohort
ICU survivors
The investigators will measure the independent contribution of risk factors such as delirium and exposure to sedative and analgesic medications to the incidence of long-term CI.



Biospecimen Retention:   Samples With DNA
Blood


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Medical and Surgical ICUs
Criteria

Inclusion Criteria:

  • Patients will be included if they are adult patients in a medical and/or surgical ICU receiving treatment for any of the following: respiratory failure or cardiogenic or septic shock.

Exclusion Criteria:

Patients who meet the inclusion criteria will be excluded if they meet any of the following criteria:

  • Cumulative ICU time > 5 days in the past 30 days, not including the current ICU stay, as this might create a state of flux regarding patients' cognitive baseline.
  • Severe cognitive or neurodegenerative diseases that prevent a patient from living independently at baseline, including mental illness requiring institutionalization, acquired or congenital mental retardation, known brain lesions, traumatic brain injury, cerebrovascular accidents with resultant moderate to severe cognitive deficits or ADL dependency, Parkinson's disease, Huntington's disease, severe Alzheimer's disease or dementia of any etiology.
  • ICU admission post cardiopulmonary resuscitation with suspected anoxic injury
  • An active substance abuse or psychotic disorder, or a recent (within the past 6 months) serious suicidal gesture necessitating hospitalization. This exclusion that will enrich follow-up rates by avoiding patients with whom it is particularly challenging to maintain long-term contact.
  • Blind, deaf, or unable to speak English, as these conditions would preclude our ability to perform the follow-up evaluation interviews.
  • Overly moribund and not expected to survive for an additional 24 hours and/or withdrawing life support to focus on comfort measures only.
  • Prisoners.
  • Patients who live further than 200 miles from the study site and who do not regularly visit the study site area.
  • The onset of the current episode of respiratory failure, cardiogenic shock, or septic shock was >72 hours ago.
  • Patients who have had cardiac bypass surgery within the past 3 months (including the current hospitalization).
  • Patients who are homeless and have no secondary contact person available. This exclusion will enrich follow-up rates by avoiding patients with whom it is particularly challenging to maintain long-term contact.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00400062


Locations
Layout table for location information
United States, Tennessee
Tennessee Valley Healthcare System Nashville Campus, Nashville, TN
Nashville, Tennessee, United States, 37212-2637
United States, Utah
VA Salt Lake City Health Care System, Salt Lake City, UT
Salt Lake City, Utah, United States, 84148
United States, Washington
VA Puget Sound Health Care System Seattle Division, Seattle, WA
Seattle, Washington, United States, 98108
Sponsors and Collaborators
VA Office of Research and Development
Vanderbilt University Medical Center
Investigators
Layout table for investigator information
Principal Investigator: E. Wesley Ely, MD MPH Tennessee Valley Healthcare System Nashville Campus, Nashville, TN
Additional Information:
Publications:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Layout table for additonal information
Responsible Party: VA Office of Research and Development
ClinicalTrials.gov Identifier: NCT00400062    
Other Study ID Numbers: MHBB-022-06S
First Posted: November 16, 2006    Key Record Dates
Last Update Posted: April 19, 2019
Last Verified: April 2019
Keywords provided by VA Office of Research and Development:
Critical care
delirium
long-term cognitive impairment
mechanical ventilation
critical illness
dementia
aging
sedatives and analgesics
Additional relevant MeSH terms:
Layout table for MeSH terms
Dementia
Delirium
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurocognitive Disorders
Mental Disorders
Confusion
Neurobehavioral Manifestations
Neurologic Manifestations
Signs and Symptoms