Abstract:Objective: To identify the risk factors of deep veins thrombosis in the lower limbs(LDVT) of patients with subarachnoid hemorrhage and prevention strategies.Methods: Ninety-eight patients were classified into two groups:LDVT and control groups according to vascular ultrasound results.Possible risk factors of LDVT,such as long-term bed,plasma fibrinogen level,venipuncture of femoral vein,varicose veins,hypertension,sex,age,smoking,alcohol drinking,diabetes,obesity,Hunt and Hess grade,were analyzed.Results: Eighteen patients suffered from LDVT(18.37%).Age,long-term bed,plasma fibrinogen level,venipuncture of femoral vein,hypertension,Hunt and Hess grade were independent risk factors for LDVT.Conclusions: Old age,long-term bed,high level of plasma fibrinogen,venipuncture of femoral vein,hypertension,high Hunt and Hess grade are the risk factors of LDVT after subarachnoid hemorrhage.