The result showed no deletion of Exons 17 or 18 instead of several low-frequency heterozygous variants (gnomAD_Propmax AF <0.0001) around Exon 18 of PKD1 (NM_001009944.3), including c.7209+28C>T (intron17), c.7210-16C>T (intron17), c.7278T>C (p.Ser2426Ser), c.7288C>T (p.Arg2430Ter), c.7344C>G (p.Leu2448Leu), c.7365C>T (p.Gly2455Gly), and c.7391G>C (p.Arg2464Pro) (Figure 2). Here, PKD1 is linked to atrial fibrillation.