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Southern Buenos Aires stroke project.

G Saposnik1, L Gonzalez, S Lepera

  • 1Department of Neurology, Ramos Mejia Hospital, Buenos Aires (1221), Argentina. gsaposnik@yahoo.com

Acta Neurologica Scandinavica
|September 12, 2001
PubMed
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In South America, penetrating artery disease and hemorrhagic stroke were common. Natives showed a higher frequency of hemorrhagic stroke compared to Caucasians, highlighting ethnic disparities in stroke subtypes.

Area of Science:

  • Neurology
  • Epidemiology
  • Vascular Medicine

Background:

  • Ethnic differences and vascular risk factors significantly influence stroke subtypes.
  • Data from developing countries, particularly South America, regarding stroke is limited.
  • Natives in South America may experience a higher incidence of small vessel disease and hemorrhagic stroke.

Purpose of the Study:

  • To analyze demographic, ethnic, and risk factor profiles of acute stroke patients.
  • To investigate the clinical characteristics and stroke subtypes in admitted patients.
  • To provide specific data on stroke in a South American population.

Main Methods:

  • Prospective data collection from 361 acute stroke patients admitted to Ramos Mejia Hospital (1997-1999).
  • Utilized a specially designed form for recording vascular risk factors, clinical features, and epidemiological data.

Related Experiment Videos

  • Determined stroke subtypes using the Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification.

    • Main Results:

    • Hemorrhagic stroke occurred in 31% of patients, more frequently in Natives (34%) than Caucasians (27%).
    • Ischemic stroke subtypes included lacunar (42%), atherosclerotic (12%), and cardioembolic (21%).
    • Small vessel disease was more prevalent in Caucasians (35%) than Natives (24%).

    Conclusions:

    • Penetrating artery disease (42%) and intracranial hemorrhage (31%) were the predominant stroke subtypes.
    • The observed frequencies of these subtypes exceed those reported in existing literature.
    • Natives exhibited a significantly higher incidence of hemorrhagic stroke compared to Caucasians.