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Electrocardirography is a simple, painless, quick medical procedure, where the heart’s electrical impulses are amplified and then recorded on the paper’s moving strip. The ECG (electrocardiogram) lets a physician check the pacemaker of the heart which triggers every heartbeat, the nerve conduction pathways of the heart, and the rhythm and rate of the heart. To perform the electrocardiography, a doctor places electrodes (small metal contacts) on the skin of the patient’s chest, legs, and arms. Such electrodes measure the direction and flow of electric currents in the heart of the time during each heartbeat. These electrodes are connected by wires to a machine producing a tracing for each electrode. Each tracing represents a particular view of the heart’s electrical patterns; such as views are known as leads. Most patients, who suspect of having heart disorder, must have an ECG (electrocardiogram) taken. Electrocardiography may help physicians find a number of heart problems such as defected heart rhythms, inadequate oxygen or blood supply to the heart, and hypertrophy (excessive thickening muscle of heart, which may be caused by high blood pressure). An electrocardiogram may also confirm when the muscle of the heart is absent or thin because it has been replaced by tissue called nonmuscular; this medical disorder may be caused by a heart attack known as myocardial infarction.
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