VARIANTS OF VENOUS SINUS STRUCTURE IN PATIENTS WITH CEREBRAL VENOUS THROMBOSIS

The aim of the paper is to study venous sinus structure in patients with cerebral venous thrombosis (CVT) depending on constitutional venous insufficiency (CVI). Materials and methods. The study included 50 CVT patients aged 25–77 years (mean age 52.5±14): 15 men (25.6 %) aged 46–75 years (mean age 54±12) and 35 women (74.4 %) aged 25–77 years (mean age 53.5±14). The authors assessed patients’ complaints, anamnesis, neurological status and assigned CVI clinical criteria. All patients underwent magnetic resonance venography. Results. In the study, transverse sinus CVT (24 cases (48.0 %)) and a combination of thrombosis of several localizations (19 cases (38.0 %)) were observed more often. Cavernous, superior sagittal and sigmoid sinus thromboses were observed in 2 (4.0 %), 2 (4.0 %) and 3 (6.0 %) cases, respectively. Left-sided CVT was observed more often compared with right-sided CVT (36 cases (72.0 %)) (p<0.05). Brain venous system varies greatly. Sinuses can be symmetrical or have anatomical structure in the form of hypoplasia. CVT patients demonstrated sinus hypoplasia more often (40 cases (71.4 %)) (p<0.05). At the same time, it was detected only in transverse and sigmoid sinuses, left-dominated (29 cases (72.5 %)). Cavernous sinuses had a symmetrical structure (p<0.05). CVI, manifested by clinical signs of impaired venous outflow, was more often in CVT patients with sinus hypoplasia (30 cases (75.0 %), compared with CVT patients without sinus hypoplasia (p<0.05).