Postoperative Cognitive Dysfunction in Geriatric Patients

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. Identifier: NCT00512200
Recruitment Status : Completed
First Posted : August 7, 2007
Last Update Posted : October 16, 2015
Information provided by (Responsible Party):
University Hospital, Basel, Switzerland

Brief Summary:
Geriatric patients have a high risk of developing postoperative cognitive deficits. Hypothetical causes are insufficient intraoperative cerebral perfusion or drugs that are administered in the perioperative setting. This study will investigate the role of these two factors in patients aged 65 or older undergoing elective surgical procedures under general aesthesia. Non-invasive techniques will be used to monitor intraoperative cerebral perfusion and anticholinergic activity in the patient's blood is determined. Data will be compared to those of a young (20-40 year old) group of patients undergoing elective surgical procedures using an identical anesthetic technique. A second control group of healthy volunteers older than 65 will be investigated to quantify practice effects with repeated testing of cognitive functions.

Condition or disease
Delirium, Dementia, Amnestic, Cognitive Disorders Postoperative Complications Memory Disorders

Study Type : Observational
Actual Enrollment : 280 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Postoperative Cognitive Dysfunction in Geriatric Patients: the Role of Intraoperative Cerebral Perfusion and Perioperative Anticholinergic Medication
Study Start Date : July 2007
Actual Primary Completion Date : February 2012
Actual Study Completion Date : February 2012

Patients aged 65 or older
Patients aged 20 to 40
Control 2
Healthy volunteers aged 65 or older

Primary Outcome Measures :
  1. Change in cognitive function due to surgery under general aesthesia [ Time Frame: cognitive function measured prior to and after surgery ]
    cognitive function measured by Consortium to Establish a Registry for Alzheimer's Disease (CERAD) neurological test battery

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Ages Eligible for Study:   65 Years and older   (Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Patients undergoing elective major surgery under general anesthesia

Inclusion Criteria:

  • Elective surgical procedure under general anaesthesia

Exclusion Criteria:

  • History of cerebrovascular disease
  • Mini Mental status <23
  • Cardiac surgery
  • Neurosurgery

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 identifier (NCT number): NCT00512200

Department of Anaesthesia, University Hospital Basel
Basel, Basel-Stadt, Switzerland, 4031
Sponsors and Collaborators
University Hospital, Basel, Switzerland
Principal Investigator: Luzius A Steiner, MD, Prof. Department of Anaesthesia, University Hospital Basel

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University Hospital, Basel, Switzerland Identifier: NCT00512200     History of Changes
Other Study ID Numbers: EK 75/07
First Posted: August 7, 2007    Key Record Dates
Last Update Posted: October 16, 2015
Last Verified: October 2015

Additional relevant MeSH terms:
Postoperative Complications
Cognitive Dysfunction
Cognition Disorders
Memory Disorders
Neurocognitive Disorders
Pathologic Processes
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Mental Disorders
Neurobehavioral Manifestations
Neurologic Manifestations
Signs and Symptoms