脳卒中患者における下肢静脈血栓症の予防－超音波検査法による予防効果の評価－

抄録

Although elastic stockings are used to reduce the risk of deep vein thrombosis (DVT) after stroke, their efficacy has not been evaluated. We evaluated the effect of elastic stockings in preventing DVT after stroke using ultrasonography. Methods: Among 101 patients with severe hemiplegia after stroke who were enrolled, 30 were given no prophylaxis (controls) and 71 were prescribed elastic stockings. We evaluated DVT in the paralytic lower extremities using ultrasonography for more than seven days after stroke onset. Ultrasonographically, DVT was visualized as an intraluminal thrombus, lack of venous compressibility and lack of signal on colour flow images. Results: In the control group, 9 patients (30%) had DVT and 6 (20%) had moyamoya echo an average of 19. 1days after onset. In the prophylaxis group, 4 patients (5.6%) had DVT and 16 (22.5%) had moyamoya echo an average of 14.4 days after onset. There was a significant reduction in the incidence of DVT in the patients who used elastic stockings (odds ratio 0.139,95% CI 0.039-0.499). Conclusion: Elastic stockings are useful for preventing DVT in patients after stroke.