Acquired long QT syndrome from stress cardiomyopathy is associated with ventricular arrhythmias and torsades de pointes.
Madias C, Fitzgibbons TP, Alsheikh-Ali AA, Bouchard JL, Kalsmith B, Garlitski AC, Tighe DA, Estes NA, Aurigemma GP, Link MS. Acquired long QT syndrome from stress cardiomyopathy is associated with ventricular arrhythmias and torsades de pointes. Heart Rhythm. 2011 Apr; 8(4):555-61.