has material basis in germline mutation in SCN5A ventricular fibrillation, paroxysmal familial, type 1 https://github.com/monarch-initiative/mondo/issues/4521 https://www.malacards.org/card/ventricular_fibrillation_paroxysmal_familial_1 MESH:C567851 ventricular fibrillation, familial, 1 ventricular fibrillation, paroxysmal familial, 1 MONDO:0011376 UMLS:C2751898 SCTID:233915000 GARD:0024795 MEDGEN:414502 IVF VF1 OMIM:603829 ventricular fibrillation, paroxysmal familial, type 1 paroxysmal familial ventricular fibrillation SCN5A-related cardiac rhythm disorder