Comparison and Validation of Recommended QT Interval Correction Formulas for Predicting Cardiac Arrhythmias in Patients with Advanced Heart Failure and Cardiac Resynchronization Devices

QT interval prolongation is an important marker for the development of cardiac arrhythmias (CA). Optimal methods to estimate QT/QTc intervals in patients with ventricular pacing (VP) and its correlation with CA have not been widely investigated. We aimed to validate the currently available formulas for QT determination during VP and to compare their abilities in predicting the occurrence of CA [atrial fibrillation (AF) and malignant ventricular arrhythmias (VA) in patients with advanced heart failure (HF) and cardiac resynchronization therapy (CRT)].

Source: The American Journal of Cardiology - June 29, 2017 Category: Cardiology Authors: Diego Iglesias- Álvarez, Moisés Rodríguez-Mañero, Francisco Javier García-Seara, Omar Kreidieh, José Luis Martínez-Sande, Belén Álvarez-Álvarez, Xesús Alberte Fernández-López, Laila González-Melchor, Ricardo Lage-Fernández, Isabel Moscoso-G Source Type: research