[Leadless pacemakers: results of a survey from implanter centers in the Lombardy region].

Background: Transvenous pacing is nowadays the cornerstone of interventional management of bradyarrhythmias. It is still associated, however, with significant complications, mostly related to indwelling transvenous leads or device pocket. In order to reduce these complications, leadless pacemakers have been recently introduced into clinical practice, but no guidelines are yet available to indicate who are those patients that might benefit the most and whether leadless pacing should be preferred in the old or young population.

SARS-CoV-2 Aiming for the Heart: A Multicenter Italian Perspective About Cardiovascular Issues in COVID-19.

The rapid spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the high fatality rate of coronavirus disease 2019 (COVID-19) have been putting a strain on the world since December 2019. Infected individuals exhibit unpredictable symptoms that tend to worsen if age is advanced, a state of malnutrition persists, or if cardiovascular comorbidities are present. Once transmitted, the virus affects the lungs and in predisposed individuals can elicit a sequela of fatal cardiovascular consequences.

Irrigated-tip magnetic catheter ablation of AF: a long-term prospective study in 130 patients.

Background: Nonirrigated magnetic ablation may result in potential char, ineffective lesions, and longer procedure times.

Objective: This study sought to report the safety and long-term efficacy of irrigated-tip magnetic ablation of atrial fibrillation (AF).

Methods: Catheter ablation was remotely performed using a new irrigated-tip magnetic catheter (ThermoCool NaviStar-RMT, Biosense Webster, Diamond Bar, CA) in 130 consecutive patients (mean age 59.

Pulmonary vein isolation after circumferential pulmonary vein ablation: comparison between Lasso and three-dimensional electroanatomical assessment of complete electrical disconnection.

Background: Pulmonary vein isolation (PVI) is one of the common endpoints of all atrial fibrillation (AF) ablation procedures and is most often validated using a preshaped circular catheter. However, three-dimensional (3D) electroanatomical systems used for anatomy reconstruction and to guide coalescent delivery of ablation lesions avoid the use of multiple transeptal punctures and multiple catheters in the left atrium.

Objective: To assess correspondence in PVI validation between a 3D electroanatomical system and a Lasso catheter.