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AzTrials

Postoperative Cognitive DysfunctionPOCDNCT03145714

To Study the Effect of Sevoflurane and Propofol V Sevoflurane and Dexmedetomidine on Postoperative Cognitive Dysfunction

A study testing Maintainance of anesthesia with Intravenous Propofol infusion and Maintainance of anesthesia with Intravenous Dexmedetomidine in people with Postoperative Cognitive Dysfunction, run by Rajiv Gandhi Cancer Institute & Research Center, India at 2 sites in India.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Postoperative Cognitive Dysfunction (POCD), is a subtle decline in cognitive function characterized by impairment of memory and reduced ability to concentrate in elderly patients exposed to general anaesthesia. This prospective study aims to compare incidence and severity of POCD in two groups of patients. Read more about this study

Who is it for?
Ages 58 to 90 years
Conditions the study is for
Postoperative Cognitive Dysfunction
What is being tested?
Maintainance of anesthesia with Intravenous Propofol infusion and Maintainance of anesthesia with Intravenous Dexmedetomidine
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
2 sitesIndia
Study dates
1 Jun 2017to 28 Mar 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 58 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient subjected to general anaesthesia for elective noncardiac surgical procedure with duration above 2 hours and postoperative stay for 3 days. Patient should be available for follow up on 7 th postoperative day.

Who cannot join

  • Patients having severe psychosis on antidepressant medications, cerebral disease, pre-existing cognitive dysfunction with Mini Mental State Examination (MMSE) Score less than 23, history of drug abuse, significant visual and hearing impairment ,language difficulties and illiteracy.

Trial locations and contacts

2 sites in 1 country.

India2 sites
  • Dr Anita Kulkarni

    Delhi, 110078

  • Rajiv Gandhi Cancer Institute and Research Centre

    Delhi, 110085

Other trials in India

About this study

Official title: To Study the Effect of Sevoflurane and Propofol Versus Sevoflurane and Dexmedetomidine on Postoperative Cognitive Dysfunction

Postoperative Cognitive Dysfunction (POCD), is a subtle decline in cognitive function characterized by impairment of memory and reduced ability to concentrate in elderly patients exposed to general anaesthesia. This prospective study aims to compare incidence and severity of POCD in two groups of patients. Group P receiving Intravenous Propofol and Inhalational anesthetic Sevoflurane. Group D receiving Intravenous Dexmedetomidine and Inhalational anesthetic Sevoflurane, Neuropsychological Test will be performed 24 hours before surgery and on postoperative day 3 and day 7.

Read the detailed description

The adult patients posted for major surgery under general anesthesia will be included in the study, patients will be allotted randomly to either Group P (Propofol) or Group D (Dexmedetomidine). In the Operation Room (OR) monitoring Electrocardiography (ECG), Pulse Oximetry (SPO2), Noninvasive Blood Pressure (NIBP), End tidal Carbon di oxide (ETCO2) and Bispectral Index (BIS) Covidien, will be attached to all patients. In both groups Anesthesia will be induced with Fentanyl 1mcg /kg-1, Morphine 0.1mg/kg-1, Propofol 1-1.5mg /kg1- and neuromuscular blocking agent Atracurium 0.5 mg/kg-1. Oral Cuffed Endotracheal Tube (ETT) will be placed in the trachea. Anaesthesia will be maintained controlled ventilation , intermittent fentanyl boluses 20 mcg and in Group P with medicated Air/Oxygen (O2) with Fractional Inspired Oxygen (FiO2 50%), Sevoflurane and Propofol Infusion to maintain BIS between 40-60. In Group D anesthesia will be maintained with Medicated Air/Oxygen (FiO2 50%), Sevoflurane and Dexmedetomidine infusion to maintain BIS between 40-60. Intraoperatively monitoring of vitals, BIS numerical value, Minimum Alveolar Concentration (MAC) Value for Sevoflurane, Expired concentration of Sevoflurane and rate of infusion of Propofol/Dexmedetomidine will be noted every 30 minutes. Intraoperative decrease in Mean Arterial Pressure (MAP) < 60 mmHg, Heart rate (HR) < 50, SPO2 < 90 % will also be noted. At the end of surgery total dosage of Propofol/Dexmedetomidine and total amount of Sevoflurane consumed will be calculated. At the end of surgery neuromuscular blockade will be reversed. Total Duration of anesthesia will be noted. On emergence from anesthesia any episode of acute delirium will be recorded. Time from end of anesthesia to eye opening will be noted in both the groups. Neuropsychological Test consisting of Letter Digit Substitution Test, Trail Making Test Part A, Part B, Stroop Colour Word Test, Visual Verbal Learning Test will be performed 24 hours prior to surgery in the preanesthesia clinic and on postoperative day 3 and day 7.

Being tested
Maintainance of anesthesia with Intravenous Propofol infusion, Maintainance of anesthesia with Intravenous Dexmedetomidine
Keywords
POCD, Elderly
Medical subject headings
Postoperative Cognitive Complications

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Maintainance of anesthesia with Intravenous Propofol infusionDrug

    The dosage of Intravenous Propofol will be titrated to maintain BIS Values between 40 -60.

  • Maintainance of anesthesia with Intravenous DexmedetomidineDrug

    The dosage of Intravenous Dexmedetomidine will be titrated to maintain BIS Values between 40 -60.

Study groups in NCT03145714
Study groupRoleWhat they receive
Propofol/Sevoflurane (Group P)ExperimentalStandard technique of induction of anaesthesia . Maintenance of anesthesia with intravenous (IV) Propofol Infusion at rate 100-150 mcg/kilogram/hour and Inhalational Anesthetic Sevoflurane during the surgery. Intervention is to titrate dosage of Propofol and Sevoflurane to maintain Bispectral Index between 40-60. Total dosage of IV Propofol and Sevoflurane uptake will be calculated at the end of surgery.
Receives: Drug: Maintainance of anesthesia with Intravenous Propofol infusion
Dexmedetomidine/Sevoflurane (Group D)Active comparatorStandard technique of induction of anaesthesia . Maintenance of anesthesia with intravenous Dexmedetomidine Infusion at rate 1- 4 mcg/kilogram/hour and Inhalational Anesthetic Sevoflurane during the surgery. Intervention is to titrate dosage of Dexmedetomidine and Sevoflurane to maintain Bispectral Index between 40 - 60. Total dosage of IV Dexmedetomidine and Sevoflurane uptake will be calculated at the end of surgery.
Receives: Drug: Maintainance of anesthesia with Intravenous Dexmedetomidine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Postoperative Cognitive Dysfunction (POCD) after major noncardiac surgery under general anesthesia in Propofol and Dexmedetomidine Group

    Postoperative Changes in Neuropsychological Tests Score compared with baseline preoperative Neuropsychological Test scores in both the groups.

    Measured: day 3 to day 7

Secondary outcomes (1)
  1. Recovery time from the stopping of anesthetics agents to eye opening in both Propofol and Dexmedetomidine Group

    Time in seconds required for patients to respond to verbal commands on stopping the anesthetic agents in both groups.

    Measured: 30 seconds to 30 minutes.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 May 2017
  2. Study start1 Jun 2017
  3. Primary completion10 Feb 2018
  4. Study completion28 Mar 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03145714
Sponsor's protocol ID
RGCI&RC
Acronym
POCD
Status last verified
Jan 2019
First submitted
7 Mar 2017
Last updated
4 Feb 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Deiner S, Silverstein JH. Postoperative delirium and cognitive dysfunction. Br J Anaesth. 2009 Dec;103 Suppl 1(Suppl 1):i41-46. doi: 10.1093/bja/aep291.

    PubMed 20007989
  • Akeju O, Pavone KJ, Westover MB, Vazquez R, Prerau MJ, Harrell PG, Hartnack KE, Rhee J, Sampson AL, Habeeb K, Gao L, Pierce ET, Walsh JL, Brown EN, Purdon PL. A comparison of propofol- and dexmedetomidine-induced electroencephalogram dynamics using spectral and coherence analysis. Anesthesiology. 2014 Nov;121(5):978-89. doi: 10.1097/ALN.0000000000000419.

    PubMed 25187999
  • Kotekar N, Kuruvilla CS, Murthy V. Post-operative cognitive dysfunction in the elderly: A prospective clinical study. Indian J Anaesth. 2014 May;58(3):263-8. doi: 10.4103/0019-5049.135034.

    PubMed 25024467

Questions about this trial

What is this clinical trial studying?

A study testing Maintainance of anesthesia with Intravenous Propofol infusion and Maintainance of anesthesia with Intravenous Dexmedetomidine in people with Postoperative Cognitive Dysfunction, run by Rajiv Gandhi Cancer Institute & Research Center, India at 2 sites in India.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in India. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Postoperative Cognitive Dysfunction (POCD) after major noncardiac surgery under general anesthesia in Propofol and Dexmedetomidine Group (time frame: day 3 to day 7). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03145714, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Feb 2019.

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