[Familial nature of acute cerebral vasculopathies of the ischemic type]
Insights
Family history of cerebrovascular accidents is higher in patients with transient ischemic attacks or non-embolic cerebral infarction. This increased risk is not solely due to higher rates of hypertension or diabetes.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Genetics
Context:
- Investigating the familial aggregation of cerebrovascular diseases.
- Examining the role of hypertension and diabetes as risk factors in these conditions.
- Comparing family histories of patients with transient ischemic attacks (TIA) or non-embolic cerebral infarction (NECI) against a control group.
Purpose:
- To determine if cerebrovascular accidents (CVAs) and their risk factors (hypertension, diabetes) are more prevalent in the families of patients with TIA or NECI.
- To assess the contribution of hypertension and diabetes to the observed familial risk of CVAs.
Summary:
- A retrospective study of 328 patients with TIA or NECI and a control group revealed a significantly higher frequency of CVAs in the patients' families.
- While hypertension was significantly more common in patient families, diabetes rates were similar between patient and control groups.
- The excess of CVAs in patient families could not be solely attributed to the higher prevalence of hypertension and diabetes.
Impact:
- Highlights a significant familial predisposition to cerebrovascular events beyond common risk factors.
- Suggests potential genetic or shared environmental factors influencing CVA risk in families.
- Informs genetic counseling and risk stratification for individuals with a family history of TIA or NECI.
Abstract:
The frequency of cerebrovascular accidents and of risk factors including hypertension and diabetes was examined retrospectively in parents and siblings of 328 patients suffering from transient ischaemic attacks or non-embolic cerebral infarction and in a control group. The frequency of cerebrovascular accidents was significantly higher in the family of the patient compared to the family of the control. The relatives of the patient and the control had essentially the same frequency of diabetes, whereas hypertension was significantly more common in the family of the patient. When the relatives with one or both the risk factors were excluded and those with cerebrovascular accidents alone were compared, a greater frequency, though insignificant, was noted in the family of the patient. Hypertension and diabetes were more common in the relatives of the patient than in the control but this difference was not statistically significant. The significant excess of cerebrovascular accidents in the family of the patients suffering from transient ischaemic attacks and non embolic cerebral infarction cannot exclusively be attributed to the greater frequency of diabetes and hypertension.
Related Concept Videos
Ischemic Stroke l: Introduction
Ischemic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
Hemorrhagic Stroke ll: Pathophysiology
Transient Ischemic Attack l: Introduction
Cerebral Edema ll: Pathophysiology


