THE HARLEY STREET VASCULAR
Venous Hemodynamics Studies
Our primary mission as Circulation Specialists is to help you achieve the healthiest circulation possible for your stage in life.
Whatever your lifestyle, genetic predisposition or individual health aspirations – Your Circulation is your Lifeline.
These studies assess the function of venous valves in the lower limb as well as the presence of chronic obstruction to venous return to the heart. The studies include:
Light Reflex Rheography (LRR)
- A simple screening test for venous hypertension, valve and calf pump function. The test takes about ten minutes to perform in clinic and no preparation is required.
- The test involves placing two small discs on each ankle and asking the patient to dorsiflex the ankle 8 times. The strength of calf pump contraction and the rate of venous return is used to assess venous function.
- LRR is used to as a screen to assess deep venous thrombosis risk (ESPECIALLY IN FREQUENT FLYERS) and the presence of underlying venous disease in patients with spider veins.
Venous hemodynamic study (Plethysmography)
- This involves the use of blood pressure cuffs at the thigh and the calf. The leg is drained of venous blood by raising it to 30 degrees, and the speed and volume of drainage determined over 3 seconds.
- The test is used to ascertain causes of limb swelling when ultra-sound and cross-sectional imaging like CT and MRI scanning are not able to identify the cause.
LRR - What will happen during the examination?
You will be seated on a chair and be asked to rest your feet on the ground.
LRR disc sensors will be placed above your ankles as below and you will be asked to move your feet up and down 8 times and then rest.
The test graph will then help determine how well your leg veins function in returning blood to the heart from the legs
you are covered
We are on the panel with most insurers in Singapore and with many international insurers; We also offer convenient options for self-paying patients.
