Seventy four ASCI subjects were randomly divided into two groups with @ subjects each : group I received no antithrombotic prophylaxis , and only physical measures like compression stockings were employed for prophylaxis , whereas group II received antithrombotic prophylaxis with low-molecular weight heparin ( LMWH ) along with physical measures as in group I. DVT was monitored through daily clinical assessment and doppler venous ultrasonography at @ weeks .