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[Comparison of hypertensive and non-hypertensive lacunar infarcts]
P Suárez1, J Castillo, H Pardellas
1Servicio de Neurologia, Complejo Hospitalaria Universitario Hospital Xeral de Galicia, Santiago de Compostela, España.
Insights
Hypertension is a common cause of lacunar infarcts, but this study found no significant clinical, imaging, or outcome differences between hypertensive and non-hypertensive lacunar strokes. These findings suggest other factors may be equally important in lacunar stroke presentation and prognosis.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Stroke Research
Background:
- Arterial hypertension is a primary cause of lacunar infarcts.
- Other etiological factors and lesions are increasingly recognized.
- A comparative study was designed to analyze hypertensive versus non-hypertensive lacunar infarcts.
Purpose of the Study:
- To compare clinical, topographic, and prognostic characteristics of patients with hypertensive and non-hypertensive lacunar infarcts.
- To investigate differences in presentation, infarct type, and associated symptoms.
- To assess the impact of hypertension on lacunar stroke outcomes.
Main Methods:
- 51 patients with lacunar infarcts were analyzed.
- Hypertension was the sole factor in 23 patients; 28 had other risk factors (diabetes, cardiopathy, etc.).
- Clinical presentation, infarct characteristics (size, location), and 3-month outcomes were evaluated using standardized scales and imaging.
Main Results:
- No significant differences were observed in age, sex, or motor hemiparesia prevalence.
- Onset, headache association, and neurological deficit severity were similar between groups.
- Topographical distribution, lesion multiplicity, infarct size, and prognosis showed no variation.
Conclusions:
- Lacunar infarcts, regardless of hypertensive status, exhibit similar clinical, neuro-radiological, and evolutionary profiles.
- This suggests that factors beyond hypertension significantly influence lacunar stroke characteristics and outcomes.
Introduction:
Arterial hypertension and hypohyalinosis of the arterias perforantes are said to be the commonest cause of lacunar infarcts, although other etiological factors and anatomo-pathological lesions are described more and more frequently. We designed a study to compare the clinical topographic and prognostic characteristics of patients with hypertensive and non-hypertensive lacunar infarcts.
Material And Methods:
We selected 51 patients with lacunar infarcts: in 23 (45%) arterial hypertension was the only etiological factor recognized. In 28 (55%) other risk factors (16 diabetes mellitus, 17 cardiopathy, 8 hyperlipemia, 13 cigarette smoking and 11 alcoholism) were seen. We evaluated the form of presentation, the type of infarct and whether this was associated with headache. The degree of defect was determined on admission using the Canadian scale. The size of the infarct was measured on CT or RM, using whichever measurement was greater. The evolution of the condition was determined on the Canadian scale and the index of Barthel after three months.
Results:
Age and sex distribution was similar to both groups. Motor hemiparesia was the commonest lacunar syndrome and the distribution was similar. There was no difference in form of onset, association with headache or neurological defect between the hypertensive and non-hypertensive lacunar infarcts. The topographical distribution, the presentation of single or multiple lesions, the size of the infarcts and the prognosis were similar in both groups.
Conclusions:
Lacunar infarcts, whether hypertensive or not, show no differences regarding clinical, neuro-radiological or evolutionary characteristics.