NCT00584324|CompletedDMC
Depth of Anesthesia on Implicit Memory
The Effect of Depth of Anesthesia on Implicit Memory
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The Effect of Depth of Anesthesia on Implicit Memory
Sponsor study identifier
interventional
70
1 country
1
Study Start
March 2006
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
January 2012
Actual (reported)Study Completion
January 2012
Actual (reported)Purpose of this study is to see if different levels of anesthesia have an effect on hearing spoken words without awareness of having heard them or anxiety after surgery.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
January 2012
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 2006
Date type not reportedThis date has not been verified as actual or estimated.
December 20, 2007
Actual (reported)January 2, 2008
Actual (reported)January 2012
Actual (reported)January 2012
Actual (reported)To test the presence of implicit memory under two different planes of surgical general anesthesia in patients undergoing urologic (transurethral) or orthopedic (internal and external fixation) procedures
3 years
To compare the pre and postoperative anxiety levels as a marker of clinical significance of operational implicit memory function.
3
Target BIS 40
Target BIS 60
Mini-mental state exam: For subjects \> 60, this exam will be administered pre-operatively. Spielberger State-Trait anxiety test: Spielberger test just before being taken to the operating room. Spoken word-stem completion test: After discharge from recovery but within 24 hrs. post surgery, this test along with the anxiety test will be administered. Bispectral Index Monitor: The physiologic monitor is used intraoperatively to assess surgical anesthesia. Audio File: Playing an audio file (a list of spoken words) via headphones under general anesthesia during the surgical procedure.
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104, United States
Mehmet S. Ozcan, MD
University of Oklahoma
70 participants (actual enrollment reported by the registry).
First Submitted
December 20, 2007
First Posted
January 2, 2008
Study Start
March 2006
Date type not reportedThis date has not been verified as actual or estimated.
Intrusive Reexperiencing: The Role of Working Memory Capacity and Thought Suppression
Mini-mental state exam: For subjects \> 60, this exam will be administered pre-operatively. Spielberger State-Trait anxiety test: Spielberger test just before being taken to the operating room. Spoken word-stem completion test: After discharge from recovery but within 24 hrs. post surgery, this test along with the anxiety test will be administered. Bispectral Index Monitor: The physiologic monitor is used intraoperatively to assess surgical anesthesia. Audio File: Playing an audio file (a list of spoken words) via headphones under general anesthesia during the surgical procedure.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Contact the study team to confirm eligibility.
Primary Completion
January 2012
Actual (reported)Study Completion
January 2012
Actual (reported)Last Updated
April 7, 2026
Record last verified: 2026-04
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Source: ClinicalTrials.gov.
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