We identified four pathogenic and likely pathogenic mutations in 4 genes (SCN2A, p.Val1325Phe; ATP1A3, p.Arg756His; PEX7, p.Tyr40Ter; and KCNA1, p.Arg167Met) likely to contribute to the EA phenotype in 4 patients (Case-2, Case-6, Case-19, and Case-23), respectively. This evidence concerns the gene KCNA1 and Esophageal atresia.