Association of dysautonomia with refractory ventricular tachyarrhythmia in patients requiring thoracoscopic surgical cardiac sympathetic denervation.

Objective: Although cardiac sympathetic denervation (CSD) effectively manages refractory ventricular tachyarrhythmias (RVTs) in long-QT syndrome and catecholaminergic polymorphic ventricular tachycardia, the link between dysautonomia and RVT from broader etiologies is understudied. We hypothesized that dysautonomia is linked to RVT regardless of etiology in patients requiring CSD. We aimed to determine whether these patients have a high burden of dysautonomia symptoms using the Composite Autonomic Symptom Score-31 (COMPASS-31).