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Prognosis for survival after an initial stroke

S M Lai1, M Alter, G Friday

  • 1University of Kansas, Kansas City, USA.

Stroke
|November 1, 1995
PubMed
Summary

Stroke survivors face varying prognoses. Older age, more neurological deficits, and conditions like myocardial infarction, cardiac arrhythmia, and diabetes mellitus increase mortality risk after an initial stroke.

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Area of Science:

  • Neurology
  • Cardiovascular Medicine
  • Public Health

Background:

  • Stroke is a leading cause of long-term disability and mortality.
  • Understanding long-term survival after an initial stroke is crucial for patient management and healthcare planning.

Purpose of the Study:

  • To investigate the prognosis for survival in patients who have experienced an initial stroke.
  • To identify factors influencing long-term survival, including demographic, clinical, and comorbidity variables.

Main Methods:

  • A cohort of 662 patients surviving at least 30 days post-stroke were followed for a mean of 24 months.
  • Data collected included age, sex, neurological deficit severity, stroke type, and comorbidities (hypertension, myocardial infarction, cardiac arrhythmia, diabetes mellitus, transient ischemic attacks).

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Main Results:

  • Cumulative survival rates at 1, 2, 3, and 4 years were 86.9%, 78.7%, 73.2%, and 72.0%, respectively.
  • Older age and greater neurological deficits at stroke onset were associated with increased mortality risk.
  • Myocardial infarction (HR 1.7), cardiac arrhythmia (HR 1.5), and diabetes mellitus (HR 1.4) significantly increased mortality risk, while hypertension and transient ischemic attacks did not.

Conclusions:

  • This study provides a clearer understanding of stroke prognosis by analyzing multiple risk factors.
  • Identifying specific comorbidities associated with poorer survival can inform targeted interventions and improve patient outcomes.