The Impact of Perioperative Geriatric Care on Outcomes After Elective Noncardiac Surgery

February 24, 2025 updated by: Ottawa Hospital Research Institute
The investigators will conduct a population-based study using health administrative data to evaluate the impact of preoperative geriatric consultation on postoperative outcomes in older patients having elective, non-cardiac surgery

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The investigators will use multilevel multivariable analyses to measure the association between preoperative geriatric assessment or consultation and outcomes after major elective non-cardiac surgery. Sensitivity analyses will be done to evaluate types and timing of geriatric care around surgery, as well as for effect modification based on patient and procedural factors.

Study Type

Observational

Enrollment (Actual)

266499

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

  • Canada
    • Ontario
      • Ottawa, Ontario, Canada, K1Y 4E9
        • Ottawa Hospital Research Institute

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Individuals >65 years of age on the day of the potential participant's first elective non-cardiac surgery in the study period

Description

Inclusion Criteria:

  • >65
  • Resident of Ontario
  • Having elective non-cardiac surgery (inpatient admission)

Exclusion Criteria:

  • Residing in a nursing home or long term care facility at baseline

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Preoperative geriatric consult or assessment
Patients who have a geriatric assessment of consult billed in the 4 months before surgery
Procedure: Preoperative geriatric consult or assessment
A preoperative geriatric consult or assessment will be considered to be present if such a consult or assessment is billed by a geriatrician for a patient in the cohort within 4 months preceding surgery. For the primary analysis we will collapse both geriatric consultations and comprehensive geriatric assessments into a single exposure level.
No Preoperative geriatric consult or assessment
Patients who do not have a geriatric assessment of consult billed in the 4 months before surgery
Procedure: No Preoperative geriatric consult or assessment
No assessment or consult billed in the 4 months before surgery

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With All-Cause Mortality at 90-days
Time Frame: date of surgery to 90 days after surgery
Death from any cause in the 90 days after surgery
date of surgery to 90 days after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient Safety Event
Time Frame: From surgery to hospital discharge (on average 6 to 7 days)
Any Type 2 diagnostic code for a patient-safety event
From surgery to hospital discharge (on average 6 to 7 days)
Hospital Length of Stay
Time Frame: date of surgery to date of hospital discharge, or 365 days after surgery, whichever comes first
date of surgery to date of hospital discharge, or 365 days after surgery, whichever comes first
Non-independent Discharge Location
Time Frame: date of surgery to date of hospital discharge, or 365 days after surgery, whichever comes first
Discharge disposition from hospital record that is not a home discharge without support
date of surgery to date of hospital discharge, or 365 days after surgery, whichever comes first
30-day Hospital Readmission
Time Frame: Date of discharge (on average 6 to 7 days) to 30 days after discharge (on average 5 weeks)
New acute care hospitalization within 30-days of discharge from the index hospitalization
Date of discharge (on average 6 to 7 days) to 30 days after discharge (on average 5 weeks)

Collaborators and Investigators

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

Sponsor

Ottawa Hospital Research Institute

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

April 1, 2002

Primary Completion (Actual)

March 1, 2014

Study Completion (Actual)

November 1, 2016

Study Registration Dates

First Submitted

November 17, 2016

First Submitted That Met QC Criteria

November 28, 2016

First Posted (Estimated)

November 29, 2016

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

February 24, 2025

Last Verified

February 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

  • DM4

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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