1-Stage Treatment of Dual Stenosis by Simultaneous Alcohol Septal Ablation and Transcatheter Aortic Valve Implantation.

Patients with severe aortic stenosis and left ventricular outflow tract obstruction can experience hemodynamic collapse when only transcatheter aortic valve implantation (TAVI) is conducted. This clinical vignette demonstrates the safety and efficacy of simultaneous alcohol septal ablation and TAVI in a single stage.

Epicardial connection between the right-sided pulmonary venous carina and the right atrium in patients with atrial fibrillation: A possible mechanism for preclusion of pulmonary vein isolation without carina ablation.

Background: Ablation of the pulmonary venous carina is occasionally required for pulmonary vein isolation (PVI) despite its nonessential role in ipsilateral PVI from the anatomical (endocardial) viewpoint. Although the Bachmann bundle (BB) is a common and main interatrial band, local variations in small tongues of muscular fibers were frequently found in autopsy studies.

Objective: We sought to clarify the effect of the electrical conduction pattern from the right atrium (RA) to the left atrium (LA) during sinus rhythm on the necessity of performing right-sided pulmonary venous carina ablation to achieve PVI.