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Effect of Low Dose Ketamine on Postoperative Cognitive Dysfunction in Geriatric Patients

Effect of Low Dose Ketamine on Postoperative Cognitive Dysfunction in Geriatric Patients Undergoing Abdominal Surgery

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12616000227493
Enrollment
40
Registered
2016-02-18
Start date
2012-07-01
Completion date
2012-12-31
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Forty patients aged 65 and older planned for elective abdominal surgery were randomly divided into two groups. While 5 ml- physiological serum was administered to the control group, ketamine group received 0,5 mg/kg ketamine in IV form 5 minutes before induction. Hemodynamic variables,were measured every 15 min until the end of the operation. Standardized Mini Mental Test (SMMT) were performed 24 hours prior to the operation and repeated 1 hour and 6hours after the operation to evaluate the cognitive functions.

Interventions

Effect of ketamine use on postoperative cognitive dysfunction (ketamin will be used, iv, 0.5 mg/kg, 5 minutes before induction.)

Sponsors

Necmettin Erbakan University Meram School of Medicine
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patients aged 65 and older, who were at least literate, fell under the ASA I-II risk group

Exclusion criteria

Patients who had significant coronary, pulmonary, renal, hepatic diseases, neuropsychiatric diseases affecting the CNS and cognitive functions, fever and infection, metabolic and endocrinal diseases, malnutrition and dehydration, low levels of vitamin B12 and folate;those who took medications that affected CNS, who were alcohol and substance addicts, smokers, urgent cases, patients in the risk group of ASA III and above, patients younger than 65, those who scored 23 and lower in the SMMT (Standardized Mini Mental Test) performed one day before the operation were excluded from the study.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026