initial treatment included digoxin ( effective in seven of 14 patients , with overdose in three ) , verapamil ( effective in three of three but fatal in one ) , cardioversion ( effective in all 10 who were treated in this way ) , iced water applied to the face ( effective in all 16 patients on 53 of 59 occasions , 90 % ) .
C0020746
iced
C0043047
water