The prognostic value of exercise-induced ventricular arrhythmia (EIVA) is uncertain, and outcomes may depend on QRS morphology.
Among 585 patients with and 2340 patients without EIVA who were matched by age, sex, and risk factor and underwent exercise
testing, 5.3% and 1.8%, respectively, died over 24 months. However, only patients with right bundle-branch block morphology
had a higher risk for death than those without EIVA.