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Neurological Impact of Vascular Events In Noncardiac Surgery patIents cOhort evaluatioN Pilot Study

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: NCT01369537
Recruitment Status : Completed
First Posted : June 9, 2011
Last Update Posted : September 6, 2013
Information provided by (Responsible Party):

Study Description
Brief Summary:

Two hundred million adults worldwide have major surgery every year. A million of these patients will have an obvious stroke after their surgery. Another 10 million patients may have "silent" strokes. Although silent strokes are not diagnosed immediately, they are likely to reduce patients' short-term memory, concentration, and ability to function at home. However, the investigators do not know how common silent strokes are after noncardiac surgery, nor the extent to which they affect brain function.

The investigators will first perform a pilot trial to determine the feasibility of the larger study that will provide the definitive answer to this question. Participating patients will be assessed by questionnaire before and after surgery, and will have a magnetic resonance imaging (MRI) study of the brain after the surgery to look for silent strokes. Combining the results of the MRI and the questionnaires will allow us to determine the frequency of silent strokes after non-cardiac surgery, and their effect on brain function. The NeuroVISION Pilot Study will determine the feasibility of a large study to examine the frequency and the impact of silent stroke in patients who undergo noncardiac surgery.

Condition or disease
Perioperative Stroke

Study Design

Study Type : Observational
Actual Enrollment : 100 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Neurological Impact of Vascular Events In Noncardiac Surgery patIents cOhort evaluatioN Pilot Study
Study Start Date : November 2011
Primary Completion Date : December 2012
Study Completion Date : January 2013
Groups and Cohorts

adults > 65 yrs undergoing noncardiac surgery

Outcome Measures

Primary Outcome Measures :
  1. Rate of recruitment [ Time Frame: 2 years ]

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   65 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients aged 65 years and older undergoing noncardiac surgery and staying in hospital overnight.

Inclusion Criteria:

  • age 65,
  • undergoing noncardiac surgery,
  • regional or general anesthetic.

Exclusion Criteria:

-Patients who have a contraindication to MRI.

Contacts and Locations

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): NCT01369537

Canada, Ontario
Juravinski Hospital
Hamilton, Ontario, Canada, L8V 1C3
Sponsors and Collaborators
McMaster University
Principal Investigator: PJ Devereaux, MD, PhD McMaster University