A new study from Karolinska Institutet demonstrates that a change in the ECG wave called the QRS prolongation is associated with a higher rate of heart-failure mortality. According to the team that carried out the study, which is published in the scientific periodical The European Heart Journal, the discovery suggests that more heart-failure cases than the most serious could be helped by pacemakers. Heart failure, which takes a multitude of forms, is one of the most common causes of hospitalisation and death in the West...
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