Arterial Pulse Wave Analysis
Arterial Pulse Wave Analysis is new technology that assists your doctor in assessing your arterial and cardiovascular health. Blood pressure measured in your arm is not the same as the blood pressure at your heart. It is your blood pressure at your heart that affects the performance of your heart, and pulse wave analysis determines your blood pressure at your heart and gives our physicians valuable information about the interaction between your heart and blood vessels and cardiac function.
The test is simple and painless, taking only a few minutes to perform while you are seated in a comfortable position. Using SphygmoCor (an FDA-approved device that is becoming the gold standard in trials), a nurse will place a pencil-like sensor gently against your wrist and record a blood pressure signal from your pulse. From this recording, the Pulse Wave Analysis system will calculate the pressure waveform at the heart and provide your physician with cardiovascular measurements such as:
Augmentation Index is a measure of the stiffness of your arteries. High cholesterol, smoking, diabetes, and aging can all cause the vessels that take blood from the heart (the arteries) to become stiffer. As the arteries become stiffer the heart must work harder to circulate blood.
Each time our heart beats, it has a time when it is contracting and pumping blood out of the heart, and a time when it is resting and filling with blood. The Ejection Duration is a measurement of how much time the heart spends pumping. When the heart spends a shorter time than normal pumping there may be problems with the ability to pump blood, while longer than normal pumping time may indicate problems with the ability for the heart to relax and fill with blood.
Sub Endocardial Viability Ratio
When the heart is resting, the heart muscle is supplied with oxygen for energy. When the heart is contracting and pumping this energy is being used. Sub endocardial Viability Ratio is a measure of the ability of the arterial system to meet the heart’s energy requirements. As this ratio decreases, the heart has less energy reserves available and may have a lower tolerance for physical activity.
Heart disease can be treated using a combination of diet, exercise and drug therapies. Your physician will use the test information to assist with making decisions on whether you need treatment, and if so what treatment options are best for you. It is important for your physician to see how your cardiovascular assessment changes in response to treatment.
Arterial Pulse Wave Analysis is provided as part of our Elite Health Evaluation and PhysioAge Assessment.