[Modifiable risk factors for non-cardioembolic transient ischemic attacks. Case control studies in the general
J M Baena-Diéz1, J Tomàs-Pelegrina, M Merino-Audi
1Servei de Neurologia, Hospital del Sagrat Cor Barcelona, España. jbaenad@meditex.es
Insights
Transient ischemic attacks (TIA) are often precursors to stroke. Key modifiable risk factors for non-cardioembolic TIA include arterial hypertension, obesity, and diabetes mellitus, highlighting targets for prevention.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Epidemiology
Context:
- Transient ischemic attacks (TIA) are critical warning signs for subsequent stroke.
- Identifying modifiable risk factors is crucial for stroke prevention strategies.
- This study focuses on non-cardioembolic TIA, a distinct subtype with specific etiological considerations.
Purpose:
- To investigate the association between modifiable cardiovascular risk factors and non-cardioembolic TIA.
- To identify specific risk factors that can be targeted for primary and secondary prevention of TIA and stroke.
Summary:
- A population-based case-control study in Barcelona examined 103 patients with non-cardioembolic TIA and 193 controls.
- Modifiable cardiovascular risk factors assessed included smoking, arterial hypertension (AHT), hypercholesterolemia, hypertriglyceridemia, obesity, impaired fasting glucose, and diabetes mellitus (DM).
- Multivariate analysis revealed significant associations between non-cardioembolic TIA and AHT (OR: 1.9), obesity (OR: 2.8), and DM (OR: 1.7).
Impact:
- Findings underscore the importance of managing arterial hypertension, obesity, and diabetes mellitus to reduce the incidence of non-cardioembolic TIA.
- This research provides valuable data for public health initiatives and clinical guidelines aimed at stroke prevention.
- Understanding these modifiable risk factors can lead to more effective interventions and improved patient outcomes in cerebrovascular disease.
Introduction:
Transient ischemic attacks (TIA) often precede a stroke.
Aims:
The purpose of this study is to examine the modifiable cardiovascular risk factors for non-cardioembolic TIA.
Patients And Methods:
A population based case control study was conducted in a district within the city of Barcelona. The cases were 103 patients with non-cardioembolic TIA, who had been diagnosed by a neurologist, and with normal CAT or MRI scans. Subjects were paired by age and sex with 193 controls without TIA or stroke, who were selected by simple random sampling from the clinical records file at the centre. The risk factors were studied using a standardized questionnaire that included the following factors which were codified in a dichotomous manner: smoking, arterial hypertension (AHT), hypercholesterolemia, hypertriglyceridemia, obesity, impaired fasting glucose and diabetes mellitus (DM).
Results:
The average age was 74.6 years and 52.3% of the subjects were females. All the modifiable cardiovascular risk factors were associated to a higher risk of TIA, although only AHT (OR: 1.9; CI 95%: 1.1-3.3) and obesity (OR: 2.1; CI 95%: 1.2-3.6) were associated in a significant way in the univariate analysis. In the multivariate analysis by logistic regression, the modifiable cardiovascular risk factors that were associated in a significant manner were AHT (OR: 1.9; CI 95%: 1.0-3.6), obesity (OR: 2.8; CI 95%: 1.4-12.3) and DM (OR: 1.7; CI 95%: 1.0-2.9).
Conclusions:
In the present study, AHT, obesity and DM were seen to be modifiable risk factors for non-cardioembolic TIA.
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