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The Digital Pulsewave Analyzer (DPA) provides information on arterial wall stiffness and determines the biological age of arteries in less than 3 minutes. This FDA approved, user-friendly, non-invasive device uses a finger probe to observe the changes in pressure, blood flow, velocity and profile throughout the whole pulse wave.
Aging and disease states associated with an increase in cardiovascular events alter the physical characteristics of blood vessel walls and impair the pulsatile function of arteries. Impaired pulsatile function of arteries provides important prognostic and therapeutic information beyond that provided by traditional blood pressure measurements.
Many believe that the use of the DPA can help caregivers reduce cardiovascular disease in their patient populations through early detection and prevention, and ultimately assist to decrease the associated financial costs placed on the health care industry. Cardiovascular disease is the #1 killer for both men & women in the United States with an estimated economic cost of approximately $298 billion.
In summary the DPA provides:
- Early detection of arterial wall stiffness
- Biological age of arteries
- Information regarding efficacy of treatment choices
- A tool to monitor the arterial wall response to lifestyle changes / reduction of cardiovascular risk factors
What is an arterial pulse wave?
The pulse wave is a physiological phenomenon, observable and measurable in the arterial system during blood circulation. During one heart systole a certain blood volume is expelled. This propagates through the arteries due to the reciprocal transformation between kinetic energy of a segment of the expelled blood volume and the potential energy of a stretched segment of the resilient vascular wall. We can observe the changes in pressure, blood flow, velocity and profile throughout the whole pulse wave. It can be used for classification of the artery elasticity.
Accelerated Plethysmogram (APG) Waveform - The second derivative of PTG - an excellent method to evaluate the biological age of arteries. Above is what is shown on the main screen if the DPA is hooked up to a computer. A differnet screen is shown on the DPA itself.
Other Measurements With The DPA
Pulse Rate Ejection time (Etc)-- similar to ejection farction
Pulse Height (PH) - Pulse amplitude Ejection Elastic Index (EEI)-- indicator of Left Ventricle ejection and elasticity of large arteries
Dicrotic Dilation Index (DDI)- indicator of small artery compliance
Dicrotic Elastic Index (DEI) - peripheral vessel elasticity (arterioles to veins)
The reference ranges are based on a comparable set of values obtained from similar healthy subjects. It is possible that an abnormal value may be normal for you but they should be discussed with your physician as only they are qualified to make a determination as to the significance and/or make a diagnosis.
One purpose of this screening is to prevent disease before symptoms occur. In those instances where symptoms have developed, laboratory tests results help confirm that a problem does exist. But a normal test result is just as significant as an abnormal result. A normal result does not mean that a test was unnecessary. When a result is normal, it not only helps rule out disease, but is also establishes a baseline "normal". A person's own result is the best baseline for monitoring any change that takes place in the future.
Almost everyone in this country knows about heart disease. They know the importance of prevention, detection, and treatment and the huge impact it has on people's health. But they know very little about vascular disease outside the heart.
click here to see a DPA report
click here to see screener's DPA certifications
click here for information about L-Arginine
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