A prospective evaluation of central venous blood flow using Doppler ultrasound in patients with a long term central venous catheter

The correlation between blood flow characteristics and the development of central venous thrombosis in 10 patients requiring long term central venous catheterization are studied using Doppler ultrasound. Results show that an intravascular foreign body will not affect blood flow characteristics in the upper body veins. Turbulent blood flow is also not a determinant of the development of intravascular thrombus.