Clinical Trial Details
— Status: Completed
Administrative data
| NCT number |
NCT00487890 |
| Other study ID # |
25699 |
| Secondary ID |
|
| Status |
Completed |
| Phase |
|
| First received |
|
| Last updated |
|
| Start date |
April 1, 2004 |
| Est. completion date |
August 31, 2009 |
Study information
| Verified date |
December 2022 |
| Source |
University of Washington |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Observational
|
Clinical Trial Summary
The purpose is to identify modifiable factors in older adults associated with functional
decline following major non-emergent surgery. The hypothesis of this proposal is that poor
preoperative exercise tolerance and physical performance, potentially modifiable factors, are
crucial in predicting functional decline and disability following surgery. When completed,
this study will reveal detailed information on the incidence and risk factors for functional
decline in older adults following surgery. It will direct future research targeting
interventions in older adults at highest risk for functional decline following surgery,
thereby decreasing the incidence of premature disability.
Description:
This prospective cohort study will follow 400 patients undergoing major non-emergent
abdominal or cardiothoracic surgery at the University of Washington Medical Center. Patients
65 and older will be recruited following introduction of the study by a health-care provider.
The provider will give the patient a study pamphlet and letter outlining the study. Patients
who express interest in the study will meet with a Research Coordinator. The Coordinator will
describe the study, answer all questions, and have the patient review and provide written
informed consent. The Mini-cog, a validated brief dementia screen with high sensitivity and
specificity, will be used to determine if patients have a potential cognitive impairment.
Participants who recall all 3 words correctly or draw a normal clock will be considered
cognitively intact and able to provide consent and to participate in the study. Participants
who are unable to recall any words or who draw an abnormal clock will be ineligible for the
study and classified as having a potential cognitive impairment.
Consenting patients will be asked questions about their medical history and health status.
The Research Coordinator will only ask questions that are relevant to the patient's medical
care. The 5-item version of the Geriatric Depression Scale will assess patients for active
depression. This short version has been validated and found to be highly sensitive and
specific for diagnosing depression. Patients will also be asked to complete the Duke Activity
Status Index and the Health Assessment Questionnaire. These questions will take 10-15
minutes.
Patients will be asked to perform physical tasks. These tasks will include a physical
performance measure. Patients will only be asked to complete tasks that they are comfortable
performing. The physical performance measures include 1) a timed 10-ft walk at normal pace,
2) a timed test of repetitive chair stands, 3) a hierarchial balance task, and 4) testing of
grip strength. In the timed walk, patients are asked to walk at normal pace for 10 feet. This
task is completed twice with the average of the times calculated. In the timed test of 5
repetitive chair stands, patients are asked to fold their arms across their chest and to rise
from the seated position 5 times as quickly as possible. To assess balance, patients are
asked to stand with their feet side-by-side, followed by semi-tandem, and tandem and to hold
each position for 10 seconds. Scores are allotted based upon how far each participant is able
to progress. To test grip strength, a handheld dynamometer will be used. Using an isometric
dynamometer, the best score of the 3 squeezes from the dominant hand will be the value
calculated.
Patients will be asked to complete the EQ-5D, SF-36 and Health Assessment Questionnaires at 1
week, 1 month, 3 months and 12 months following their surgery as well as the CNAQ Appetite
Questionnaire but only at the 1 month, 3 month, and 1 year follow up intervals. The Research
Coordinator will contact them by phone to complete these questionnaires. If the patient is
still in the hospital at the University of Washington 1 week following their surgery, the
Research Coordinator will meet with them to complete the questionnaires.