The present work was aimed at studying the state of the inferior vena cava system according to the findings of duplex scanning in dynamics of acute cerebral circulation impairments (ACCI). Amongst 100 patients with ACCI, lower limb vein deep thrombosis (LLVDT) was revealed in 57% of cases. The incidence of LLVDT in patients with intracerebral haemorrhage was higher than in those with ischaemic stroke, however there were no statistically significant differences between the type of ACCI (p=0.06) and subtypes of ischaemic stroke (atherothrombotic, ceardioembolic) (p = 0.68). The main risk factors for LLVDT are the presence of pronounced motion deficit in the extremities, induced by the underlying disease (p=0.02) and immobilization. In the overwhelming majority of patients (81%) thrombosis localized isolatedly in the crural veins. Ascending thrombosis and the development of a floating thrombus were represented mainly on the side of motility deficit in the extremities. We have confirmed a strong association between positive dynamics in the neurological status of patients and frequency of recanalization of thrombi (p=0.043). Ultrasonographic examination of lower limb veins in dynamics of ACCI is an important component of preventive and therapeutic process.
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