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Updated: May 27, 2026
06:01
A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Risk factors among stroke subtypes in Brazil
Luiz Carlos Porcello Marrone1, Luciano Passamani Diogo, Faberson Mocelin de Oliveira
1Neurology Department, Sao Lucas Hospital, Pontifíciae Universidade Católica do Rio Grande do Sul (PUCRS)/Instituto do Cérebro (INSCER). lcpmarrone@gmail.com
Summary
This study reveals large-artery atherosclerosis is the most common stroke subtype in Brazil. Hypertension and dyslipidemia were identified as key risk factors for cerebrovascular disease.
Area of Science:
- Neurology
- Epidemiology
- Public Health
Background:
- Stroke is a major cause of death and disability in Brazil, with limited data on stroke subtype prevalence in Latin America.
- Understanding stroke subtypes and their associated risk factors is crucial for targeted prevention and treatment strategies.
- Cerebrovascular disease risk factors can vary significantly across different stroke subtypes and populations.
Purpose of the Study:
- To determine the prevalence of different acute ischemic stroke subtypes in a Brazilian cohort.
- To identify the primary risk factors associated with each stroke subtype in this population.
- To contribute data on stroke subtypes and risk factors in Latin America.
Main Methods:
- Analysis of data from 688 patients with acute ischemic stroke admitted to a stroke data bank.
- Standardized assessment of patient data and classification of stroke subtypes.
- Statistical analysis to identify the most common stroke subtypes and associated risk factors.
Main Results:
- Large-artery atherosclerosis was the most frequent stroke subtype (32.4%), followed by cardioembolism (28.3%) and microangiopathy (18.5%).
- Hypertension and dyslipidemia were identified as the most significant risk factors across stroke subtypes in this cohort.
- The study highlights differences in risk factor prevalence among stroke subtypes.
Conclusions:
- Large-artery atherosclerosis is the predominant stroke subtype in this Brazilian population.
- Hypertension and dyslipidemia are critical modifiable risk factors for stroke in Brazil.
- Further research is needed to elucidate stroke subtype distribution and risk factors in diverse South American populations.
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