Table 1

Clinical data

Patient	Age (years)*	Sex	Σ	Baseline ECG					LP	Class I	EPS
Patient	Age (years)*	Sex	Σ	Br	PR	QRS	Axis	QTc	LP	Class I	AH	HV	WCL	I
Afib, atrial fibrillation; Aflut, atrial flutter; Br, Brugada type 1 ECG; EPS, electrophysiological study; F, female; I, inducibility; LP, late potentials; M, male; N, negative; Nl: normal; P, positive; Σ, symptoms; WCL, Wenckebach cycle length.
*At time of investigation; †,§ 1:1 antegrade conduction via fast pathway till cycle length of >1000 and 520 ms, respectively; ‡left anterior hemiblock.
I:2	66	F	No	N	256	100	Nl
II:1	37	M	Afib	N	220	125	Nl	431	P	N
II:2	42	M	No	N	210	116	Right	390
II:3	34	M	No	N	258	110	Nl
III:1	20	F	Aflut	P	285	140	Right	449			140	60	640†	P
III:2	13	M	No	N	165	95	Nl	405		N
III:3	13	M	No	N	205	120	Right	420	P	N
III:4	11	F	No	N	170	105	Nl	403	P	P
A	62	F	No	P	230	115	‡Left	410	P		120	60	480§	N