New ECG markers for predicting long-term mortality and morbidity in patients receiving cardiac resynchronization therapy

We investigated prognostic value of four recently proposed ECG markers in patients with cardiac resynchronization therapy (CRT): 1./ pathological preimplantation QRS axis, 2./ increase in QRS amplitude in V3 during biventricular pacing, 3./ negative QRS in V1/V2 during left ventricular (LV)-only pacing, 4./ longer QRS duration during LV-only pacing. A longitudinal cohort study was performed (n  = 552).

Source: Journal of Electrocardiology - April 12, 2018 Category: Cardiology Authors: Roksana Kisiel, Kamil Fijorek, Pawe ł Moskal, Piotr Kukla, Tomasz Sondej, Danuta Czarnecka, Marek Jastrzębski Source Type: research