They remain some of the most complex diagnostic procedures carried out by doctors. To take an electrocardiogram, or ECG, they first have to attach 10 or more electrodes to a patient’s chest, arms and legs to measure the heart’s electrical activity. Then, once these signals have been recorded, a cardiologist has to interpret them to determine if a person has a particular heart ailment. It is a life-saving technology – but a complicated, expensive one. However, UK scientists now believe they could soon overcome these limitations by developing devices which will allow patients to take their own detailed ECGs at
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