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Risk factors in various subtypes of ischemic stroke according to TOAST criteria

Nadia Aquil1, Imtiaz Begum, Arshia Ahmed

  • 1Department of Medicine, Ziauddin University Hospital, North Campus, Karachi. nadia_aquil@hotmail.com

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP
|May 18, 2011
PubMed

Insights

Hypertension and diabetes are key risk factors for large and small artery atherosclerosis subtypes of acute ischemic stroke. Tailoring prevention strategies to specific stroke subtypes, rather than the condition overall, is crucial.

Area of Science:

  • Neurology
  • Cardiovascular Medicine
  • Public Health

Background:

  • Acute ischemic stroke is a leading cause of disability and death worldwide.
  • Understanding the specific risk factors associated with different stroke subtypes is essential for effective prevention and treatment.

Purpose of the Study:

  • To determine the frequency of various risk factors within different subtypes of acute ischemic stroke, classified using the TOAST criteria.
  • To analyze the association between specific risk factors and stroke subtypes.

Main Methods:

  • A cross-sectional, observational study was conducted.
  • 100 patients diagnosed with acute ischemic stroke were enrolled.
  • Data on demographic profile, medical history, physical and neurological examinations, and relevant investigations were collected and analyzed using frequency percentages and chi-square tests.

Main Results:

  • Hypertension (85%) and Diabetes Mellitus (49%) were the most prevalent risk factors.
  • Lacunar infarct (43%) and large artery atherosclerosis (31%) were the most common stroke subtypes.
  • Hypertension and diabetes were significantly associated with both large and small artery atherosclerosis subtypes.
  • Ischemic heart disease showed a significant association with cardioembolic stroke (p=0.01).

Conclusions:

  • Risk factor profiles vary significantly across different acute ischemic stroke subtypes.
  • Preventive strategies should be tailored to address the specific risk factors prevalent in each stroke subtype for greater impact.
  • This study highlights the importance of subtype-specific analysis in managing the burden of ischemic stroke.
Abstract

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