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Electrocardiogram devices (ECG)
ECG devices record the heart rhythm on the basis of the electrical excitation of the heart during the heartbeat. The ECG examination is useful, among other things, in cases of high blood pressure, cardiac arrhythmias or arteriosclerosis.
A distinction is made between long-term, resting and stress ECGs. Long-term ECGs record the heartbeat over a longer period of time if, for example, cardiac arrhythmias occur irregularly. The resting ECG is performed on the lying, relaxed person, while the stress ECG is used during physical exertion, such as on a treadmill.