Abstract
Clinical-Imaging Features of Venous Strokes
Highlights
A Venous Stroke (VS) is considered to be “relatively unknown cerebrovascular disease” [1] and occurs, according to recommendations of the American Heart Association/American Stroke Association, in 0.5-1% of all strokes [2]
The age in the studied groups was statistically significant and different in the group of patients with venous stroke [52, 7 (41; 64) years] in comparison with arterial stroke [65, 3 (45; 80) years] in distribution of patients on sex the prevalence of women has been revealed in comparison with men in the venous stroke group
The onset of clinical manifestations occurred in the compared groups unequally: sub acute, slow progression of the disease within more than 48 hours was noted in the group of patients with venous stroke in 80% and in the group of patients with arterial stroke in 25% cases
Summary
A Venous Stroke (VS) is considered to be “relatively unknown cerebrovascular disease” [1] and occurs, according to recommendations of the American Heart Association/American Stroke Association, in 0.5-1% of all strokes [2]. In 78% of cases venous strokes occur in patients to 50 years of age and in 3 times more often in females [3]. VS morphologically differs from arterial one in the fact that congestion, stasis, diapedetic hemorrhages and small foci of necrosis characterizing it are not accompanied by pathological changes of arteries in the affected area. Ischemia bears a secondary character associated with externally caused vessel constriction feeding the area of stasis [8]. Edema which in case of VS has a more marked character is the factor predisposing to hemorrhage. Pathophysiological mechanisms of the brain injury in the acute period of VS are characterized by congestion and vasogenic edema unlike ischemia and cytotoxic edema in case of an arterial stroke [9]. Some authors number manifestations of vasogenic edema earlier than cytotoxic one among the features of VS [10]
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