Table 1.

Patient information

	Sex	Age (y)	Etiology	VT-SoO	EAM	Catheter	Pacing interval (ms)	Pacing type	Points on map (n)	Dist to VT-SoO (mm)
1	M	69	IHD	PM	CARTO	PentaRay	500	S1S1	4190	8.3
2	F	34	ARVC	ENT	CARTO	PentaRay	460	S1S1	2256	17.9
3	M	71	IHD	PM	CARTO	PentaRay	360	S1S2	2560	4.9
4	F	52	ARVC	PM	CARTO	PentaRay	360	S1S1	1312	5.2
5	M	79	IHD	ENT	CARTO	PentaRay	380	S1S2	260	4.8
6	M	55	IHD	PM	CARTO	PentaRay	360	S1S2	1625	8.2
7	M	70	IHD	PM	CARTO	PentaRay	360	S1S2	370	16.5
8	M	73	ARVC	PM	CARTO	PentaRay	360	S1S2	328	5.2
9	M	22	ARVC	PM	CARTO	DecaNav	1000	S1S1BV	4325	0.0
10	M	65	IHD	ENT	Precision	HD Grid	360	SE	1341	33.9
11	M	68	IHD	PM	Precision	HD Grid	360	SE	1304	13.8
12	M	50	IHD	PM	Precision	HD Grid	360	SE	4328	10.7
13	M	61	IHD	ENT	Precision	HD Grid	325	SE	719	1.9
14	M	65	IHD	PM	Precision	HD Grid	360	S1S2	356	3.4
15	M	77	IHD	PM	Precision	HD Grid	400	SE	389	5.0
16	M	60	IHD	PM	Precision	HD Grid	390	SE	466	1.7
17	M	52	IHD	ENT	Precision	HD Grid	360	SE	511	3.1
18	M	65	IHD	ENT	Precision	HD Grid	400	SE	667	2.5
	89% M	65 (53-70)	72% IHD	67% PM	50% CARTO	50% HD Grid	360 (360–398)	44% SE	1012 (408–2098)	5.1 (3.2–10.1)

Pacing maneuvers to determine the ventricular tachycardia site of origin (VT-SoO) were either entrainment (ENT) or pace-mapping (PM). Electroanatomic mapping (EAM) systems were CARTO or EnSite Precision. Pacing types were S₁S₁, S₁S₂, or sensed extras (SE).

ARVC = arrhythmogenic right ventricular cardiomyopathy; Dist to VT-SoO = distance between VT-SoO and the nearest site showing the lowest reentry vulnerability index; IHD = ischemic heart disease; Points on map = number of unipolar electrograms per map; S₁S₁^BV = biventricular pacing.