A Simple Blood Test Can Help Doctors Determine Your Current Likelihood of Having a Blockage in Your Heart Arteries
Obstructive coronary artery disease (CAD), also known as a blockage in the heart arteries, has many telltale signs. Chest discomfort. Heartburn. Tightness or pressure in the throat, jaw, shoulder, abdomen, back or arm. Yet all these signs can signal other issues going on inside the patient. Too much spicy food, stress, a pulled muscle. The list can grow rather long. Determining the cause of these symptoms can be tricky business. So how do you and your doctor correctly identify the cause of your specific symptoms? It can be as easy as a simple blood test.
Understanding the results of the blood test is just as easy as getting the blood test done. This simple blood test is scored on a scale of 1-40. Those with low scores, defined as ? 15, can be safely assessed as having symptoms unlikely to be caused by CAD, whereas patients with higher scores have a higher likelihood of CAD. Patients with low scores can be spared invasive and potentially risky cardiac tests and procedures, while those with higher scores can receive additional testing necessary to achieve their proper diagnosis and treatment.
Recently, the results of the registry study, called PRESET,1 looked at how effective the test does what it was designed to do. This simple blood test minimized unnecessary cardiology referrals and additional cardiac testing for low-risk patients. This means reducing patient exposure to radiation from a nuclear stress test or coronary CT scan, decreased likelihood of skin rashes where electrodes are placed for echocardiograms, electrocardiograms, exercise stress tests and more, reduced risk of dye reactions or risk associated with surgical heart procedures such as possible injury to the artery, kidney damage, bleeding complications, and more. These patients can get reliable information without the risks of the traditional tests.
The test (known as the Corus® CAD blood test) incorporates age, sex and gene expression measurements into a single score that indicates a person’s current likelihood of obstructive CAD. Unlike a genetic test, which provides information about a patient’s future risk of disease, this test provides the current likelihood of blockage in his or her heart artery. It’s much safer for the patient and has the benefit of saving the healthcare system money by reducing unnecessary tests and procedures.
Recently, the American Heart Association highlighted the Corus CAD test in a new 2017 Scientific Statement2 about how precision medicine can be used to diagnose and predict cardiovascular disorders. The AHA’s statement confirms that this simple blood test has been proven valid and useful in clinical studies. If you are concerned about the symptoms of obstructive CAD, talk with your doctor.
For more information about the Corus CAD blood test, visit www.corusCAD.com.
- One in seven deaths among Americans is caused by CAD3
- Traditional tests carry various risks
- A simple blood test called Corus CAD helps doctors identify patients who are at low risk so that unnecessary and potentially harmful cardiac tests can be avoided, as well as those at high risk so appropriate next steps can be taken
1 Ladapo JA, Budoff M, Sharp D, et al. Clinical Utility of a Precision Medicine Test Evaluating Outpatients with Suspected Obstructive Coronary Artery Disease. Am J Med. 2017;130(4):482.e11-482.e17.
2 Musunuru K, Ingelsson E, Fornage M, et al. The Expressed Genome in Cardiovascular Diseases and Stroke: Refinement, Diagnosis, and Prediction: A Scientific Statement From the American Heart Association. Circ Cardiovasc Genet. 2017;10(4):e1-e25.
3 Benjamin EJ, Blaha MJ, Chiuve SE, et al. On Behalf of the American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart Disease and Stroke Statistics – 2017 Update: A Report from the American Heart Association. Circulation. 2017;135(10):e146-e603.