Artificial intelligence software standardizes electrogram-based ablation outcome for persistent atrial fibrillation.

Introduction: Multiple groups have reported on the usefulness of ablating in atrial regions exhibiting abnormal electrograms during atrial fibrillation (AF). Still, previous studies have suggested that ablation outcomes are highly operator- and center-dependent. This study sought to evaluate a novel machine learning software algorithm named VX1 (Volta Medical), trained to adjudicate multipolar electrogram dispersion.

QT Interval Prolongation Under Hydroxychloroquine/Azithromycin Association for Inpatients With SARS-CoV-2 Lower Respiratory Tract Infection.

Association between Hydroxychloroquine (HCQ) and Azithromycin (AZT) is under evaluation for patients with lower respiratory tract infection (LRTI) caused by the Severe Acute Respiratory Syndrome (SARS-CoV-2). Both drugs have a known torsadogenic potential, but sparse data are available concerning QT prolongation induced by this association. Our objective was to assess for COVID-19 LRTI variations of QT interval under HCQ/AZT in patients hospitalized, and to compare manual versus automated QT measurements.

Cavotricuspid isthmus is constantly a zone of slow conduction: Data from ultra-high-resolution mapping.

Background: Whether cavotricuspid isthmus (CTI) is a region of conduction slowing during typical flutter has been discussed with conflicting results in the literature. We aimed to evaluate conduction velocity (CV) along the different portions of the typical flutter circuit with a recently proposed method by means of ultra-high-resolution (UHR) mapping.

Methods: Consecutive patients referred for typical atrial flutter (AFL) ablation underwent UHR mapping (Rhythmia, Boston Scientific).

Return to Sport after Surgical Treatment of Lisfranc Injuries in Athletes: A Retrospective Case Series.

Introduction: A Lisfranc injury can be a devastating injury in athletes, and if inadequately treated, may lead to chronic pain and loss of function. The purpose of this study was to determine the rate and time until return to sport after surgical fixation for a ligamentous Lisfranc injury. We hypothesized that open reduction and screw fixation of a ligamentous Lisfranc injury can be a successful treatment in the athletic population and allow patients to return to sport at close to their preinjury level of play.