Table 2

Follow up data of subjects with Brugada-type ST shift

Case number		Age/sex		ECG				Drug test				Holter				Treadmill				SAECG (control)				SAECG (drug test)
				Initial				Drug test				Holter				Treadmill				Follow up				f-QRS (ms)		RMS (μV)		LAS (ms)		f-QRS (ms)		RMS (μV)		LAS (ms)
				ST shift				QRS	ST shift			ST shift	PVCs/day			ST shift								f-QRS (ms)		RMS (μV)		LAS (ms)		f-QRS (ms)		RMS (μV)		LAS (ms)
1	56/M	Coved			Normal				None			46			Unchanged			127	20	32			136	14	50
2	48/M	Coved			IRBBB	Coved			None			0			Normalised			112	24	31			136	9	55
3	56/M	Coved			IRBBB	Coved			None			2			Normalised			108	55	29			122	69	27
4	47/M	Saddle back			IRBBB	Coved			None			1			Normalised			128	10	53			137	18	37
5	52/M	Saddle back			IRBBB	Coved			None			0			Unchanged			121	14	48			127	12	49
6	57/M	Saddle back			IRBBB	Saddle back			None			0			Normalised			117	32	26			129	19	46
7	72/F	Saddle back			Normal				None			0			Unchanged			99	26	34			118	32	34
8	43/M	Saddle back			Normal				None			53			Unchanged			108	17	42			124	15	46
9	64/M	Saddle back			IRBBB	Saddle back			None			373			Normalised			105	9	52			119	6	54
10	42/M	Saddle back			CRBBB	Coved			Elevated			0			Elevated			151	6	79			182	5	78
11	44/M	Saddle back			Normal				None			0			Unchanged			109	18	39			122	9	50
12	49/M	Coved			Not done

CRBBB, complete right bundle branch block; F, female; f-QRS, filtered QRS; IRBBB, incomplete right bundle branch block; LAS, low amplitude signal; M, male; PVC, premature ventricular contraction; RMS, root mean square; SAECG, signal averaged ECG.