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Predictors of stroke pattern in hypertensive patients
I Lestro Henriques1, J Bogousslavsky, G van Melle
1Service de Neurologie, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
Journal of the Neurological Sciences
|December 1, 1996
Summary
Hypertension influences stroke type, with age, smoking, and TIA history correlating with specific subtypes like large artery disease and cardioembolism. These factors help explain varied stroke causes in hypertensive individuals.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Epidemiology
Background:
- Hypertension is a known risk factor for stroke.
- The specific reasons for diverse stroke types and causes in hypertensive patients remain unclear.
Purpose of the Study:
- To investigate the role of coexisting factors in determining stroke type among hypertensive patients.
- To analyze the associations between hypertension and different stroke etiologies.
Main Methods:
- A population-based study of 1057 hypertensive patients with a first stroke.
- Logistic regression analysis (multivariate and polychotomous) was employed.
- Utilized Lausanne Stroke Registry definitions for stroke subtypes: cerebral hemorrhage, cerebral infarction, lacunar infarction, cardioembolism, and large artery disease.
Main Results:
- Cerebral hemorrhage frequency in hypertensive patients was similar to the general registry population.
- Cerebral infarction was linked to age, diabetes, smoking, family history, hypercholesterolemia, and prior TIA.
- In ischemic strokes, lacunar infarction (36%), large artery disease (21%), and cardioembolism (14.5%) were prevalent. Large artery disease correlated with smoking and TIA history. Cardioembolism correlated with age over 69. Lacunar infarction was more common in younger patients without smoking or TIA history.
Conclusions:
- Hypertension, in conjunction with TIA history, age, and smoking, partially explains the predisposition to specific stroke types.
- These associations may elucidate why hypertensive individuals experience cerebral hemorrhage, lacunar infarction, cardioembolic, or large artery disease strokes.