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A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...

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A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats

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Stroke symptoms in individuals reporting no prior stroke or transient ischemic attack are associated with a decrease

George Howard¹, Monika M Safford, James F Meschia

¹Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, AL 35294, USA. ghoward@uab.edu

|August 4, 2007

Summary

This summary is machine-generated.

Individuals experiencing stroke-like symptoms without a diagnosis report lower quality of life. These undiagnosed cerebrovascular events significantly impact physical and mental functioning, suggesting they are not benign.

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Area of Science:

Neurology
Public Health
Epidemiology

Background:

Stroke symptoms without a diagnosis are common.
Associated dysfunctions in these cases are not well-described.
Undiagnosed cerebrovascular disease may be prevalent.

Purpose of the Study:

To assess quality of life in individuals with stroke symptoms but no diagnosis.
To compare quality of life across different stroke/transient ischemic attack (TIA) history groups.
To investigate the impact of undiagnosed symptomatic cerebrovascular disease.

Main Methods:

Utilized Short Form 12 (SF-12) Physical Component Summary (PCS-12) and Mental Component Summary (MCS-12) scores.
Analyzed data from the REasons for Geographic And Racial Differences in Stroke (REGARDS) cohort.
Compared PCS-12 and MCS-12 scores among symptom-free, history of symptoms-free, stroke history, and TIA history groups.

Main Results:

Participants with symptoms but no diagnosis had significantly lower PCS-12 scores (5.5 points lower) than symptom-free individuals.
Lower MCS-12 scores were also observed in symptomatic, undiagnosed individuals (2.7 points lower).
These decrements were comparable to those with diagnosed transient ischemic attack (TIA) and substantial compared to stroke.

Conclusions:

Individuals with stroke-like symptoms but no formal diagnosis experience reduced quality of life.
Physical functioning is substantially impacted, with a smaller decline in mental functioning.
Suggests a significant population with undiagnosed symptomatic cerebrovascular disease, which may not be benign.