Holter monitoring in cardiological practice.

Thirty-one patients who presented with the symptoms of palpitations and/or syncope were personally studied by the Holter monitor electrocardiogram method. The method is briefly described. Interesting results were obtained, which are illustrated by five case histories. Of these 31 cases which were studied, five gave entirely negative results. In five cases, there were benign and not very frequent atrial or ventricular ectopic beats. In 21 cases there were significant findings, the most common being frequent and/or dangerous R on T or multifocal ventricular ectopic beats. Additionally, paroxysmal tachyarrhythmias, atrioventricular block, sinoatrial arrest or significant ischaemic changes, which were not detected in the routine electrocardiograms, were recorded.