Ogunbayo GO, et al. - Researchers used weighted sampling in the National Inpatient Sample database to compare trends, morbidity, and mortality associated with real world practice of catheter ablation (CA) for ventricular arrhythmias (VA)(ventricular tachycardia and premature ventricular contraction) based on the presence of structural heart disease (SHD). They compared patients with or without SHD that underwent CA of VA with respect to characteristics and outcomes. They found that the complication rate of major and any complications were increased by approximately 3-fold for both due to the presence of SHD during CA for VA. Moreover, in patients with SHD vs those without SHD, the hospital mortality was observed to be increased by > 20-fold.