[Influence of risk factors on the angiographic findings of occlusive cerebrovascular disease (author's transl)].

The angiographic findings in 69 patients suffering from ischaemic stroke or transient ischaemic attacks were compared with the clinical data. The incidence of extracranial stenoses increases with age and is higher in patients with hypertriglyceridaemia and with occlusive arterial disease of the heart or the limbs. Hypertensive patients show extracranial stenoses less frequently, but a greater number is without any visible stenoses in the vessels supplying the affected part of the brain. The influence of the diastolic blood pressure on the distribution of the angiographic findings is greater than that of the systolic pressure, but if the diastolic pressure exceeds 105 mm Hg, the incidence of the different angiographic findings is equalized. Among female patients there are more without visible stenoses in the vessels supplying the affected part of the brain. Blood glucose and cholesterol showed no influence on the distribution of the angiographic findings and the incidence of intracranial stenoses was independent of any of the investigated factors. These results support the hypothesis that different risk factors cause different forms of arterial occlusive disease.