Reflux or venous insufficiency is the primary problem for the most superficial venous disease. Healthy veins support a continuous one-way flow of blood from the limbs back to the heart. Leg veins comprise valves that prevent the backflow of blood. In case of faulty valves, owing to several risk factors, a person suffers from venous reflux.
Refluxing valves make
blood flow back down the leg. As a result, veins tend to become swollen,
enlarged and twisted as blood pools or flows in the wrong direction. This
condition is common among patients and is known as varicose veins.
A healthcare
professional can identify the problematic valves using an Automatic Vascular Doppler with simple one-button operation. The device can be used to assess the
valvular competency of the Vein. The study is completely safe and does not
require injecting medicine or radiation into the body. The sonographer requests
the patient to take particular positions and movements to examine the legs and
measure the blood flow.
How to use the
Automatic Vascular Doppler for Venous Reflux Study?
The
Photoplethysmography (PPG) Probe of the Doppler is placed in the Right/Left
Great Saphenous vein at about four or five fingers distance above the ankle
bone. The patient has to perform the tiptoe reflux for five times as we observe
the venous refilling pattern.
The results of the
test are evaluated as follows:
- If
the refilling or recovery time is more than 20 seconds, it indicates good
valvular competency of the vein to push the blood upwards.
- If
the refilling or recovery time is between 18-20 seconds, it is
questionable and a repeat test is conducted.
- If
the refilling or recovery time is less than 18 seconds, there is a venous
condition and may require Physician intervention.
