Recovery of Physical Function After Critical Illness In Older Adults

Purpose

The proposed study is a prospective, observational study assessing the recovery of muscle and physical function in patients surviving critical illness (n =150) at hospital discharge (baseline) and repeated serially. Patients will be enrolled after life-saving modalities have been weaned near hospital discharge. Patients will participate in testing at baseline, 3-, 6-, 12-, and 24-months after hospital discharge. In a subset of patients (n = 18), muscle biopsies will be performed at baseline and then repeated once at either 12- or 24-months after hospital discharge.

Conditions

  • Sepsis
  • Acute Lung Injury(ALI)

Eligibility

Eligible Ages
Between 18 Years and 99 Years
Eligible Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • adult patients (≥40 years of age) - patients who have survived an ICU admission of at least 72 hours - diagnosis of acute lung injury or sepsis are eligible.

Exclusion Criteria

  • individuals who were not ambulatory prior to ICU admission, - not expected to survive at least 6 months, - have a new or pre-existing brain infarct, injury, or neurological condition with deficits preventing participation in physical testing, - have a pre-existing geriatric syndrome that were confound recovery trajectory

Study Design

Phase
Study Type
Observational
Observational Model
Cohort
Time Perspective
Prospective

Arm Groups

ArmDescriptionAssigned Intervention
RETURN Survivors of critical illness

Recruiting Locations

UK Center for Clinical and Translational Science and nearby locations

University of Kentucky, Lexington, Kentucky 40536
Lexington, Kentucky 40536
Contact:
Doug A Long, MS
8593231100
delong2@uky.edu

More Details

NCT ID
NCT07225257
Status
Recruiting
Sponsor
University of Kentucky

Study Contact

Doug Long, MS
859-218-0596
delong2@uky.edu

Detailed Description

The overarching goal of the proposed study is to determine the trajectories of physical recovery and cellular markers involved with the underlying failure to recover muscle after critical illness, while exploring which characteristics are associated with sustained physical disability. This proposal will examine muscle pathophysiology carefully aligned with physical function outcomes in order to longitudinally assess the recovery, or failed recovery, of muscle function in participants after critical illness: Aim 1: Determine the long-term trajectory of muscle strength, physical function and ADL recovery in ICU survivors. Patients (n = 150) will participate in a battery of tests to determine muscle and physical function aligned with self-reported measures of ADLs and quality of life at hospital discharge, 3-, 6-, 12-, and 24-months post. Aim 2: Assess cellular changes in skeletal muscle in ICU survivors contributing to long-term physical dysfunction. In a subgroup of patients enrolled in Aim 1, muscle biopsies will be collected at baseline and long-term follow-up to determine oxidative stress, mitochondrial function, and cellular senescence.