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INTRODUCTION

ANGINA PECTORIS
HEART ATTACK
RISK FACTORS
DIAGNOSIS
TREATMENT
HISTORY OF FIGHTING CORONARY HEART DISEASE


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DIAGNOSIS

Diagnosis of Heart Disease | Diagnosis Disease Heart More Test



An electrocardiograph (ECG or EKG) records the electrical activity of the heart. Preceding each contraction of the heart muscle is an electrical impulse generated in the sinoatrial node; the waves displayed in an ECG trace the path of that impulse as it spreads through the heart. Irregularities in an ECG help physicians diagnose coronary heart disease and other disorders in the muscle, blood supply, or neural control of the heart.

A variety of simple diagnostic methods may identify coronary heart disease before it becomes life threatening. Regular physical examinations, coupled with a personís family medical history, may alert a physician that a patient has a high risk for heart disease. Cholesterol screening, a blood test that measures cholesterol levels, can identify people at risk for atherosclerosis. In 2003 the United States Food and Drug Administration approved a new blood test that measures an enzyme called lipoprotein-associated phospholipase A2. Elevated levels of this enzyme indicate that a person is at increased risk for coronary heart disease. Studies have found that this blood test, known as the PLAC test, is a better indicator of coronary heart disease than cholesterol screening. (Diagnosis of Heart Disease, Diagnosis Disease Heart More Test)



The stress test, also called an exercise electrocardiogram, measures the heart rate of a person during exercise and identifies any abnormal changes in heart function. Such changes may indicate the presence of coronary or arterial disease.

Chest pain, shortness of breath, and an abnormal pulse are some of the symptoms of coronary heart disease, but symptoms of heart disease may be different for every patient, and similar symptoms may also indicate a variety of other medical conditions. In a patient with chest pain, shortness of breath, or an abnormal pulse who also has risk factors for coronary heart disease, several types of tests help doctors make an accurate diagnosis. (Diagnosis of Heart Disease, Diagnosis Disease Heart More Test)


Coronary angiography, the X-ray examination of the heart after the injection of a radiopaque dye or contrast medium, is used to detect the presence and extent of coronary disease. Areas blocked by atherosclerotic plaque appear as dark spots that interrupt the path of an artery. This angiogram shows a blockage in the coronary artery along the upper surface of the heart.

An electrocardiogram (ECG, sometimes known as EKG) provides a graphical picture of the different phases of the heartbeat (see Electrocardiography). An ECG recorded when a patient is at rest may indicate that the blood supply of the heart is not normal, and the ECG can often detect damage from a previous heart attack. In an exercise stress test, an ECG is recorded while a patient is performing physical activity such as walking on a treadmill or riding a stationary bicycle. As the intensity of exercise increases, the doctor looks for specific changes in the ECG that indicate the heart is not getting enough oxygen.(Diagnosis of Heart Disease, Diagnosis Disease Heart More Test)

In cardiac catheterization, a long, thin, flexible tube called a catheter is threaded through an artery or vein to the patientís heart. Doctors collect information about the heartís function, such as pressure and blood flow in different chambers of the heart, by means of a device attached to the catheter. The catheter can also be used to perform coronary angiography, in which a dye that is visible on X rays is injected through the catheter into the coronary arteries. Moving and still X-ray pictures of the heart are taken, and the resulting images enable doctors to see where the coronary arteries are narrowed or obstructed by atherosclerosis. (Diagnosis of Heart Disease, Diagnosis Disease Heart More Test)

Diagnosis of Heart Disease | Diagnosis Disease Heart More Test



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Diagnosis of Heart Disease | Diagnosis Disease Heart More Test


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