Variable Case.1 Case.2 Case.3 Case.4
QTc interval 3 3 3 3
Syncope - 2 2 2
TDP 2 - - -
TWA 1 1 1 -
Congenital deafness 0.5 0.5 0.5 0.5
Low heart rate 0.5 0.5 - -
SCD in family - 0.5 - -
Total score 7 7.5 6.5 5.5