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CompletedNCT00719628Updated Apr 7, 2009

Depth of Anaesthesia and Cognitive Dysfunction

An observational study in Cognitive Dysfunction, sponsored by Rigshospitalet, Denmark. Completed at 1 site in Denmark. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2009-04-07.

Sponsored by Rigshospitalet, Denmark · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
70
Ages
60 Years and older
Sex
All
01

Study summary

The purpose of this study is to investigate if there is an association between the depth of anaesthesia and the presence of cognitive deterioration after surgery.

02

Conditions studied

  • Cognitive Dysfunction

Keywords

  • Postoperative
  • Cognitive
  • Dysfunction
03

In context

Cognitive Dysfunction

3,843 studies on the registry are indexed under Cognitive Dysfunction; 1,100 are open to participants now.

This study's enrollment of 70 is below the median of 150 across 950 observational studies indexed under Cognitive Dysfunction.

Browse Cognitive Dysfunction studies →

Lead sponsor

Rigshospitalet, Denmark is the lead sponsor of 1,017 studies on the registry; 183 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients above 60 years eligible for surgery

Inclusion criteria

  • Age above 60
  • Surgery in general anesthesia
  • surgery > 1 hour
  • ASA: 1-3

Exclusion criteria

Exclusion Criteria:

  • Dementia
  • Excessive Use of alcohol or anxiolytics
  • Unable to understand danish
  • MMSE score \< 24
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
70 participants (actual)
06

What researchers measure

Primary outcomes

  1. mean Cerebral state index in relation to postoperative cognitive dysfunction

07

Study locations

1 site
  • Dep Anaesthesia, HOC, Rigshospitalet
    Copenhagen, 2100, Denmark
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 7, 2009, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00719628
Lead sponsor
Rigshospitalet, Denmark
First posted
Jul 22, 2008
Start date
Sep 2008
Primary completion
Apr 2009
Completion
Apr 2009
Last update
Apr 7, 2009

Study contacts

Lars S Rasmussen, MD, PhD
study director · Dep anaesthesia, HOC, Rigshospitalet

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2009. You cannot join it, but the record below documents what was studied.

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