Cardioneuroablation for Refractory Vasovagal Storm Secondary to a Right Hilar Tumor.

Background: Cardiac syncope due to sinus arrest may result from either a vasovagal cardioinhibitory mechanism or an intrinsic sinus node dysfunction.

Case Summary: A 67-year-old woman with a recently diagnosed right hilar mass presented with new-onset episodes of syncope associated with sinus arrest. Resting electrocardiogram was normal, and no electrolyte abnormalities were identified.

Slow/fast atrioventricular nodal reentrant tachycardia catheter ablation guided by atrial resetting: The new insight.

Background: Atrial resetting can be used to discern the anterograde pathway in slow/fast atrioventricular nodal reentrant tachycardia (AVNRT).

Objective: We aimed to assess the prevalence of right inferior extension (RIE) and left extension (LE) and the potential impact on the ablation approach.

Methods: During the electrophysiologic study of patients with slow/fast AVNRT, a decremental supraventricular extrastimulus was delivered within the vulnerability window of the tachycardia cycle at 2 distinct sites: the inferoparaseptal area of the Koch triangle (near the RIE) and the proximal few centimeters of the coronary sinus (near the LE).

Safety and Efficacy of Mini-Invasive Left Atrial Appendage Closure: A Propensity-Score Analysis.

Background: Left atrial appendage closure (LAAC) for prevention of stroke is validated in patients with nonvalvular atrial fibrillation (NVAF) contraindicated to oral anticoagulation. General anaesthesia (GA) is often used for procedural guidance by transesophageal echocardiography (TEE); however, its use may be challenging in some patients. The aim of the study was to evaluate the safety and the midterm efficacy of a mini-invasive LAAC strategy using micro-TEE under procedural sedation.