Postoperative Cognitive Dysfunction in Geriatric Patients

October 14, 2015 updated by: University Hospital, Basel, Switzerland

Postoperative Cognitive Dysfunction in Geriatric Patients: the Role of Intraoperative Cerebral Perfusion and Perioperative Anticholinergic Medication

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.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

280

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

  • Switzerland
    • Basel-Stadt
      • Basel, Basel-Stadt, Switzerland, 4031
        • Department of Anaesthesia, University Hospital Basel

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients undergoing elective major surgery under general anesthesia

Description

Inclusion Criteria:

  • Elective surgical procedure under general anaesthesia

Exclusion Criteria:

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

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
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
cognitive function measured prior to and after surgery

Collaborators and Investigators

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

Sponsor

University Hospital, Basel, Switzerland

Investigators

  • Principal Investigator: Luzius A Steiner, MD, Prof., Department of Anaesthesia, University Hospital Basel

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

July 1, 2007

Primary Completion (Actual)

February 1, 2012

Study Completion (Actual)

February 1, 2012

Study Registration Dates

First Submitted

August 6, 2007

First Submitted That Met QC Criteria

August 6, 2007

First Posted (Estimate)

August 7, 2007

Study Record Updates

Last Update Posted (Estimate)

October 16, 2015

Last Update Submitted That Met QC Criteria

October 14, 2015

Last Verified

October 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • EK 75/07

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.

Clinical Trials on Postoperative Complications

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Israel

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe