Background—Catecholaminergic polymorphic ventricular tachycardia is a disease
characterized by ventricular arrhythmias elicited exclusively under adrenergic stress.
Additional features include baseline bradycardia and, in some patients, right ventricular fatty
displacement. The clinical spectrum is expanded by the 2 families described here. Methods
and Results—Sixteen members from 2 separate families have been clinically evaluated and
followed over the last 15 years. In addition to exercise-related ventricular arrhythmias, they …

Expanding spectrum of human RYR2-related disease : new electrocardiographic, structural,
and genetic features | CiNii Research … Expanding spectrum of human RYR2-related
disease : new electrocardiographic, structural, and genetic features …