Page last updated: 2024-10-29

ketamine and Amnesia, Anterograde

ketamine has been researched along with Amnesia, Anterograde in 1 studies

Ketamine: A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors.
ketamine : A member of the class of cyclohexanones in which one of the hydrogens at position 2 is substituted by a 2-chlorophenyl group, while the other is substituted by a methylamino group.

Amnesia, Anterograde: Loss of the ability to form new memories beyond a certain point in time. This condition may be organic or psychogenic in origin. Organically induced anterograde amnesia may follow CRANIOCEREBRAL TRAUMA; SEIZURES; ANOXIA; and other conditions which adversely affect neural structures associated with memory formation (e.g., the HIPPOCAMPUS; FORNIX (BRAIN); MAMMILLARY BODIES; and ANTERIOR THALAMIC NUCLEI). (From Memory 1997 Jan-Mar;5(1-2):49-71)

Research Excerpts

ExcerptRelevanceReference
"At 5 min, immediate recall, anterograde amnesia, retention in primary memory, short-term storage capacity, and intelligence quotient were less reduced after the isomers than racemic ketamine."2.70Cognitive impairment after small-dose ketamine isomers in comparison to equianalgesic racemic ketamine in human volunteers. ( Durieux, ME; Himmelseher, S; Pfenninger, EG, 2002)

Research

Studies (1)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's1 (100.00)29.6817
2010's0 (0.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Pfenninger, EG1
Durieux, ME1
Himmelseher, S1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Effects of Low Doses of Ketamine on Postoperative Quality of Recovery After Total Intravenous Anesthesia[NCT02571153]Phase 4135 participants (Actual)Interventional2015-09-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Length of PACU Stay

Length of stay at postanesthesia recovery room (NCT02571153)
Timeframe: During the stay at postanesthesia recovery room (about 90 to 120 minutes)

Interventionminutes (Mean)
Saline Group82.9
Ketamine 0.284.5
Ketamine 0.486

Morphine Consumption (mg) at PACU

Morphine consumption (mg) at PACU (about 90 to 120 minutes) (NCT02571153)
Timeframe: During the stay at postanesthesia recovery room (about 90 to 120 minutes)

Interventionmg (Mean)
Saline Group1.6
Ketamine 0.20.9
Ketamine 0.41.1

Occurrence of Pain at PACU Using a 0-10 Numeric Pain Rating Scale

Occurrence of pain at the PACU. Average Pain will be calculated. The pain score will be evaluated using a 0-10 numeric pain rating scale, where zero mean no pain and 10 the worst imaginable pain. (NCT02571153)
Timeframe: 90 minutes postanesthesia at recovery room

Interventionunits on a scale (Mean)
Saline Group3.8
Ketamine 0.22.6
Ketamine 0.42.8

Occurrence of Postoperative, Nausea and Vomiting

Percentage of participants with postoperative nausea and vomiting at the PACU and during the hospital ward stay (NCT02571153)
Timeframe: 24 hours

Interventionpercentage of participants (Number)
Saline Group30.8
Ketamine 0.229.7
Ketamine 0.439.5

Percentage of Participants With Tramadol Consumption

Percentage of Participants with Tramadol during the ward stay (NCT02571153)
Timeframe: 24 hours

Interventionpercentage of participants (Number)
Saline Group5.1
Ketamine 0.210.8
Ketamine 0.413.9

Quality of Postoperative Recovery Assessed by QoR-40 Questionnaire 24 Hours After Surgery

Quality of postoperative functional recovery assessed by the questionnaire QoR40 The quality of postoperative functional recovery was assessed by the QoR-40 questionnaire, which assesses five dimensions of recovery (physical comfort - 12 items; emotional state - 7 items; physical independence - 5 items; physiological support - 7 items; and pain - 7 items). Each item was rated on a five-point Likert scale: none of the time, some of the time, usually, most of the time, and all the time. The total score on the QoR-40 ranges from 40 (poorest quality of recovery) to 200 (best quality of recovery). The QoR-40 was administered by a blind investigator 24 hours after surgery. (NCT02571153)
Timeframe: 24 hours

Interventionunits on a scale (Mean)
Saline Group187.8
Ketamine 0.2189.6
Ketamine 0.4186.8

The Severity of Postoperative Pain

"The severity of postoperative pain was rated the higher score of pain (NRS) during the hospital ward stay.~Pain was evaluated using a 0-10 numeric pain rating scale (NRS), where zero meant no pain and 10 the worst imaginable pain." (NCT02571153)
Timeframe: 24 hours

Interventionunits on a scale (Mean)
Saline Group3.2
Ketamine 0.22.8
Ketamine 0.43.6

Trials

1 trial available for ketamine and Amnesia, Anterograde

ArticleYear
Cognitive impairment after small-dose ketamine isomers in comparison to equianalgesic racemic ketamine in human volunteers.
    Anesthesiology, 2002, Volume: 96, Issue:2

    Topics: Adult; Affect; Amnesia, Anterograde; Cognition Disorders; Cross-Over Studies; Double-Blind Method; E

2002