Symptom Information: Sort according to HPO 

1
(HPO:0001250) Seizures 1245 / 7739
2
(HPO:0001279) Syncope 94 / 7739
3
(HPO:0005110) Atrial fibrillation 71 / 7739
4
(OMIM) Polymorphic ventricular tachycardia induced by physical activity, stress, or catecholamine infusion 2 / 7739
5
(OMIM) Sinoatrial node dysfunction 1 / 7739
6
(OMIM) Atrioventricular node dysfunction (in some patients) 1 / 7739
7
(OMIM) Atrial standstill 6 / 7739
8
(MedDRA:10049694) Left ventricular dysfunction 10 / 7739
9
(OMIM) Left ventricular dilation 13 / 7739