- Angiography of the Heart
- What to Expect During Procedure
- What Does a Coronary Angiogram Do?
An angiogram is an X-ray image of blood vessels after they are filled with a contrast material. An angiogram of the heart, a coronary angiogram, is the "gold standard" for the evaluation of coronary artery disease (CAD). A coronary angiogram can be used to identify the exact location and severity of CAD.
How is a coronary angiogram performed?
Coronary angiography is performed with the use of local anesthesia and intravenous sedation, and is generally not significantly uncomfortable.
- In performing a coronary angiogram, a doctor inserts a small catheter (a thin hollow tube with a diameter of 2-3 mm) through the skin into an artery in either the groin or the arm.
- Guided with the assistance of a fluoroscope (a special X-ray viewing instrument), the catheter is then advanced to the opening of the coronary arteries (the blood vessels supplying blood to the heart).
- Next, a small amount of radiographic contrast (a solution containing iodine, which is easily visualized with X-ray images) is injected into each coronary artery. The images that are produced are called the angiogram.
- The procedure takes approximately 20-30 minutes.
- After the procedure, the catheter is removed and the artery in the leg or arm is either sutured, "sealed," or treated with manual compression to prevent bleeding.
- Often, if an angioplasty orstent is indicated, it will be performed as part of the same procedure.
What can be seen or diagnosed during a coronary angiogram?
Angiographic images accurately reveal the extent and severity of all coronary artery blockages. For patients with severe angina or heart attack (myocardial infarction), or those who have markedly abnormal noninvasive tests for CAD (such as stress tests), the angiogram also helps the doctor select the optimal treatment. Treatments may then include medications, balloon angioplasty, coronary stenting, atherectomy ("roto-rooter"), or coronary artery bypass surgery.
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High-Sensitivity Troponin Test
The high-sensitive troponin test can detect very low levels of troponin T in the blood. (There are three types of cardiac troponin proteins, I, T, and C.), which helps doctors diagnose a heart attack more quickly.
If troponin levels are elevated high and the ECG (EKG, electrocardiogram) indicates an acute heart attack, immediate cardiac intervention such as catheterization, stents, or a coronary artery bypass graft (CABG).
The high-sensitive troponin test can help diagnose heart conditions such as obstructive coronary disease (CAD), stable angina, congestive heart failure, cardiomyopathy, chronic heart failure, myocarditis, aortic dissection, cardiotoxic chemotherapy, blunt trauma to the chest, and strenuous exercise, for example, endurance athletes.
You can prevent elevated troponin levels in the blood with a heart-healthy lifestyle a heart-healthy diet, maintaining your weight, limit alcohol, don’t smoke, practice stress reduction through stress reduction techniques, meditation, and yoga, manage your blood pressure and diabetes, and take all of your medications as your doctor has instructed you.
Call 911 immediately if you have chest pain and have symptoms of a heart attack, which include nausea, vomiting, belching, indigestion, upper abdominal discomfort that feels like stomach pain in the middle of the upper abdomen, upper back and arm pain, feeling as though you are getting the flu, sweating, a vague feeling of illness, and sweating.
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