In this year, genetic studies carried out by Vatta et al [44] showed that unexplained nocturnal SCD syndrome, known as SUNDS (Sudden Unexplained Nocturnal Death Syndrome) and Brugada disease are phenotypically, genetically and functionally identical and allelic since both affect the same gene: SCN5A. The gene discussed is SCN5A; the disease is Brugada syndrome.