Inappropriate shocks in patients with Fidelis® lead fractures: impact of remote monitoring and the lead integrity algorithm.

Introduction: The role of remote monitoring combined with lead integrity algorithm (LIA) in patients with Fidelis (Medtronic Inc., Minneapolis, MN, USA) lead fractures is not well defined.

Methods: We retrospectively identified patients with Fidelis lead fractures at our institution, documenting all pertinent data (remote monitoring use, clinical presentation, lead fracture diagnosis criteria).

Cardiac Image Registration: Rotational Error Correction and Gated Stabilization for Cardiac Motion.

Dynamic motion of the heart due to cardiac and respiratory cycles, and rotation from varying patient positions between imaging modalities, can cause errors during cardiac image registration. This study used phantom, patient and animal models to assess and correct these errors. Rotational errors were identified and corrected using different phantom orientations.

Incessant interfascicular reentrant ventricular tachycardia as a result of catheter ablation of the right bundle branch: case report and review of the literature.

A 72-year-old woman developed incessant interfascicular (IF) ventricular tachycardia immediately after successful right bundle branch (RBB) catheter ablation for the treatment of sustained bundle branch reentrant tachycardia. Catheter ablation of the left bundle branch and the left anterior fascicle was successful in eliminating the tachycardia (in 2 different sessions). This report discusses the direct link between the creation of an RBB block and the development of IF tachycardia, in our case, and in prior cases of IF reentry reported in the literature.

Periprocedural anticoagulation for atrial fibrillation ablation.

Background: Catheter ablation for atrial fibrillation (AF) can increase risk of left atrial (LA) thrombi and stroke. Optimal periprocedural anticoagulation has not been determined.

Objective: We report the role of administering warfarin and aspirin without low molecular weight heparin in patients undergoing AF ablation.

Pulmonary vein isolation and linear lesions in atrial fibrillation ablation.

Background: Various strategies have been used for atrial fibrillation (AF) ablation. It is unclear whether adding linear lesions to pulmonary vein (PV) isolation has significant advantages.

Objectives: We assessed the clinical benefit of adding linear lesions in patients undergoing PV isolation for AF.