Single Derivation Fragmented QRS Can Predict Poor Prognosis inSuccessfully Revascularized Acute STEMI Patients

摘要

BackgroundQRS fragmentation (fQRS) is classically defined as the presence of slurred QRS morphology in at least two contiguous leads, and its prognostic importance has been shown in ST elevation myocardial infarction (STEMI). However, no study has investigated the significance of single lead fQRS (sl-fQRS) in surface electrocardiography (ECG).