Trajectory of Recovery in the Elderly (TORIE)

May 19, 2021 updated by: Joshua Mincer, Icahn School of Medicine at Mount Sinai
The purpose of this study is to understand how elderly individuals regain their cognitive skills following general anesthesia. The investigators will compare an age stratified group of volunteers who will be evaluated with a series of cognitive tests and a functional MRI. The participants will then be administered general anesthesia for two hours. The investigators will then assess the participants using state of the art tools to determine when participants return to their cognitive baseline.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Elderly patients undergoing anesthesia and surgery frequently suffer from postoperative cognitive dysfunction (POCD) and postoperative delirium (PD). The cause of these entities is unknown. It is unclear what part anesthetics play in the development of POCD and PD. The investigators hypothesize that elderly patient's cognitive capacities recover more slowly after receiving general anesthesia, perhaps because they have more limited cognitive reserve. A more prolonged recovery would confound diagnoses of POCD and PD and potentially puts patients who are discharged on the day of surgery at risk of not understanding postoperative instructions. The trajectory of postoperative cognitive recovery has never been explored and elderly participants have been explicitly not included in any type of emergence research. To explore this vital area the investigators propose to study young and elderly volunteers with a combination of two state of the art neuropsychological tests (Postoperative Quality of Recovery Scale and the NIH Toolbox) and functional magnetic resonance imaging. Starting from baseline, the investigators will determine multiple cognitive domains and resting state networks, treat the participants with general anesthesia for two hours while continuing to examine network activity, and then explore the recovery of the cognitive domains and alterations in functional networks using both the PQRS and the NIH Toolbox Cognitive Measures. Participants will be evaluated at 1 month, 6 months, and 12 months.

Study Type

Interventional

Enrollment (Actual)

104

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10029
        • Icahn School of Medicine at Mount Sinai

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 40-80 years old
  • American Society of Anesthesiologists (ASA) Physical Status I or II (i.e. Individuals with minimal disease burden)
  • Capable and willing to consent

Exclusion Criteria:

  • Airway assessment as potentially difficult (Mallampati III or greater)
  • Allergies or hypersensitivity to drug or class
  • Chronic Inflammatory conditions such a lupus or system rheumatoid arthritis (arthritis limited to 1 or 2 joints will be acceptable)
  • Patients with diabetes mellitus
  • Patients with a recent illness (within the last 2 weeks)
  • Patients with severe visual or auditory disorder/handicaps
  • English illiteracy
  • Pregnancy
  • Participants not expected to be able to complete the postoperative tests
  • History of malignant hyperthermia
  • Nursing mothers
  • Body Mass Index > 30
  • Patients with significant metal implants in body
  • Current use of cocaine or opiates
  • Current smokers

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Functional magnetic resonance imaging
Magnetic resonance images will be acquired on a 3 Tesla scanner (Skyra, Siemens, Erlangen, Germany) with a 20 channel receiver coil.
Procedure: Functional magnetic resonance imaging
Diffusion tensor imaging
Other Names:
  • fMRI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Recovered on Postoperative Quality of Recovery Scale (PQRS)
Time Frame: 15 min, 60 min, 1 day, 3 days, 7 days, 30 days, 6 months
Cognitive Function using scales of the PQRS to test whether age is associated with the time of return to baseline cognitive function. The PQRS is a brief measurement tool to assess multiple domains of recovery, including cognition, over time. It is scored as recovered / not recovered based on level of performance, within a certain tolerance range, relative to preoperative (baseline) performance - before the general anesthesia / MRI scanning session. Postoperative Quality of Recovery Cognitive Scale at each study timepoint by age decade. Postoperative Quality of Recovery Cognitive
15 min, 60 min, 1 day, 3 days, 7 days, 30 days, 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in NIH Tool Box Composite
Time Frame: Baseline, 1 day, 7 days, 30 days
NIH Toolbox Cognitive Battery is a multidimensional set of brief measures assessing cognitive (as well as emotional, motor and sensory) function. There is no score range, but mean score is 100 with standard deviation 15. A score at or near 100 indicates average ability compared with others. Scores around 115 suggest above-average ability. Scores around 130 suggest superior ability (in the top 2 percent nationally). A score around 85 suggests below-average ability. A score in the range of 70 or below suggests significant impairment.
Baseline, 1 day, 7 days, 30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Icahn School of Medicine at Mount Sinai

Collaborators

Yale University
National Institute on Aging (NIA)

Investigators

  • Principal Investigator: Joshua Mincer, MD, PhD, Icahn School of Medicine at Mount Sinai

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2015

Primary Completion (Actual)

April 22, 2020

Study Completion (Actual)

April 22, 2020

Study Registration Dates

First Submitted

October 23, 2014

First Submitted That Met QC Criteria

October 24, 2014

First Posted (Estimate)

October 27, 2014

Study Record Updates

Last Update Posted (Actual)

June 15, 2021

Last Update Submitted That Met QC Criteria

May 19, 2021

Last Verified

May 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GCO 13-0359
  • 1R01AG046634 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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