This is the Step By Step Progression that Has Led to a Breakthrough in Detecting CardioVascular Disease in all forms of Public Medicine and Health Practices.
Pulse Wave Velocity (PWV)
When the heart beats, blood is pushed through aorta and the main arteries down the arm to the finger tips. The thump of the heart creates a pulse wave in the blood that travels down the arm. Very hard arteries allow that pulse wave to move very quickly. With soft, flexible arteries, the pressure wave moves more slowly.
Because of the way that blood moves faster through hardened arteries, Pulse–wave velocity (PWV) is a way to measure arterial stiffness and detect hardening of the arteries well before other symptoms appear. This makes Pulse Wave Velocity Measurement an incredibly important tool in early diagnosis of cardiovascular disease.
Early Forms of Measuring Pulse Wave Velocity
One of the earliest ways to measure Pulse Wave Velocity was by using a sensor on the neck to detect the carotid and a cuff on the leg to detect the femoral artery. By timing the pulse wave and how long it took to travel from the neck to the leg, the pulse wave velocity was established.
Upgrading to Pulse Wave Analysis
As research continued into Pulse Wave Velocity, researchers discovered that by plotting the arterial waveform at an extremity such as wrist or fingertip, the shape of that wave would tell the practitioner the Pulse Wave Velocity. A metric was created from the shape of the arterial pulse wave called the Augmentation Index. This was easier to measure because it did not require taking precision measurements at 2 places in the body. The arterial waveform could be taken from a single extremity very accurately and then interpreted.
Measurement of Blood using light. Photo (Light) Plethysmo (Blood) Graphy (Measurement). Using a light on the fingertip is a very effective way to record the arterial pulse wave. This is done using a device called a Pulse Oximeter and has been in use in surgery rooms all over the world for decades. So this was found to be an excellent way to analyze the arterial pulse wave and determine arterial hardening. This calculation was done to create a metric called the Augmentation Index, the measurement of arterial stiffness.
Difficulty Interpreting the Peripheral Augmentation Index
The Augmentation Index is a number taken entirely from tiny changes in the shape of the arterial pulse wave. Several factors change the shape of that wave as arteries harden, or as the heart weakens. But these tiny measurements are hard to interpret outside of a research lab. Some method was needed to make this interpretation easier.
A breakthrough came in the form of mathematically interpreting the shape of the arterial pulse wave at the finger tip. This allowed the creation of a wavetype that has 7 very distinct, very easy to see waveforms. Extensive research confirmed that each wave type from 1-7 conformed with a specific leave of arterial health.
This Technological Breakthrough Is Built Into the
Cardio Wave Analyzer.
The Cardio Wave Analyzer was extensively researched to correlate the 7 different wave patterns with various degrees of arterial health. The result is that this machine can quickly detect arterial hardening with a 3 minute non-invasive test. When the machine was created, a second algorithm was also included, detecting and analyzing heart rate variability (the different lengths of each heart beat over a 3 minute test period). The Heart Rate Variability (HRV) test allows the machine to estimate stress or fatigue in the patient. HRV Stress is a predictor of mortality in cardio events. So this machine will estimate arterial hardening, and also estimate the patient stress levels in the same test period.
An Affordable Device Offering a 3 Minute Non-Invasive Arterial Test
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