FKTN and Patent foramen ovale: Our systematic search results in 77 patients with FKTN deficiency and cardiac manifestations, encompassing DCM, VD, DI, SI, AF, PFO, double subaortic ventricular defect, HoLV, PPS, MF and infundibular TGA (with no innominate vein) [14,185,330,331,332,333,334,335,336,337,338,339,340,341,342,343] (Table 5, Supplementary Tables S2 and S3).