Recovery and Outcomes From Stroke

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-08-23

Study Completion Date

2024-10-31

Brief Summary

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The investigators will perform follow-up on 500 cases of deep and lobar intracerebral hemorrhage to perform advanced neuroimaging before 45 days post stroke, and evaluations of motor and cognitive function at baseline, 3 months and 6 months to determine predictors of recovery, progressive cognitive or functional impairment.

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Detailed Description

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Stroke is the third leading cause of death and the leading cause of adult disability in the United States. More adults are affected by stroke each year than Alzheimer's disease, multiple sclerosis, amyotrophic lateral sclerosis or Parkinson's disease. Hemorrhagic strokes represent the most severe subtypes of stroke. An estimated 40-50% of hemorrhagic stroke victims will die and more than 80% of survivors remain disabled after hemorrhagic stroke. Yet the vast majority of analyses on outcome after stroke have focused principally on gross measures of functional outcome.

Furthermore hemorrhagic stroke differs from ischemic stroke where a loss of blood causes the area affected to be readily visible on scanning. But with hemorrhagic stroke, not only the area that we can directly see, but nearby tracts that have been compressed or stretched by the mass of the hemorrhage can be injured.

The investigators propose to follow-up on 500 cases of deep and lobar ICH to perform serial evaluations of motor and cognitive function and advanced neuroimaging to determine predictors of recovery, progressive cognitive or functional impairment. Our proposal has the advantages of adding onto a prospective ICH study which will identify and recruit cases, ability to evaluate for the degree and impact of survival and severity biases, baseline neuroimaging which includes baseline MRI, biologic samples including genotyping for apolipoprotein E alleles and uniform phenotype definitions as well as expertise in recovery/outcome analyses, advanced neuroimaging processes and epidemiologic study. This proposal performs detailed cognitive, motor and functional assessments on cases of intracerebral hemorrhage and correlates with tractography imaging. The investigators hypothesize that unlike ischemic stroke, the mass effect of the hemorrhage itself may disrupt nearby tracts in some patients while preserving them in others and will serve as a better predictor of who may recover after ICH. This project will represent the largest number of ICH cases in which tractography imaging has been performed to date.

Specific Aim #1: Improve motor recovery prediction after supratentorial ICH by adding proportion of tract injury as measured by diffusion tensor imaging (DTI) independent of the ICH volume, location, age, gender and intraventricular hemorrhage (IVH).

Hypothesis #1a: Increasing severity of injury to corticospinal tracts in ICH patients will predict worse specific motor deficits assessed at 3-month and 6-month post-stroke.

Hypothesis #1b. Injury to cortical-cortical tracts including the superior longitudinal fasciculus, uncinate fasciculus, cingulum, and arcuate fasciculus, will predict greater impairment in corresponding cognitive domains including attention, memory, executive function, and language function assessed at 3 and 6-month post-stroke.

Specific Aim #2: Determine the association of periventricular tract injury in intraventricular hemorrhage complicating ICH with subsequent incontinence and gait ataxia.

Hypothesis #2: Patients with IVH will be associated with greater periventricular tract injury than patients without IVH and that this injury will be independently associated with long-term neurogenic incontinence and gait instability after controlling for severity of the ICH including location and volume, age and gender.

Conditions

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Intracerebral Hemorrhage

Study Design

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Observational Model Type

ECOLOGIC_OR_COMMUNITY

Study Time Perspective

PROSPECTIVE

Study Groups

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1

Participants who have had a hemorrhagic stroke and have been enrolled into the Genetic and Environmental Risk Factors for Hemorrhagic Stroke Study who live in the area of University of Cincinnati, Massachusetts General Hospital, University of Maryland, Duke University, Columbia University and University of Chicago Illinois, age 18 years or greater. Ability of participant or legal representative to provide informed consent. Racial/ethnic category of Caucasian, African American or Hispanic.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Age 18 years or greater, fulfillment of the criteria for Deep, Subcortical or Lobar Intracerebral Hemorrhage (ICH)
* No evidence of trauma, vascular malformation or aneurysm, or brain tumor as a cause of ICH.
* Ability of the patient or legal representative to provide informed consent