Preface

In this issue, we have selected several interesting papers, dealing with arrhythmias. Sarquella-Brugada et al. summarized the clinical value and cost-effectiveness of electrocardiogram screening and genetic analysis in the neonatal population, while AlGhamdi provided a nice overview of the principles for the subcutaneous implantable cardioverter defibrillators system, covering very basic components, such as implantation procedure, clinical indications, safety, efficacy, and future directions. Immunology is such a hot topic for the past year in medicine, Chera et al. has kept us warm during the winter season by elucidating the same topic about the relationship between anti-cardiomyocyte autoantibodies and sudden cardiac death which is related to the area of autoimmune disorders. Another interesting concept reviewed by Marinheiro et al. demonstrated that ventricular arrhythmias could be secondary, caused by, Obstructive Sleep Apnea (OSA), and this explains why treatment of OSA with continuous positive airway pressure therapy could potentially prevent the occurrence of VA.