Table1.

Comparison of surface VCG and iVCG parameters

	Spatial QRS-T angle, °				Spatial T vector amplitude, mV				Spatial QRS-T Angle
	Baseline		Day 7		Baseline		Day 7
	ISR	AAI	ISR	AAI	ISR	AAI	IRS	AAI	Average
sVCG	118.3	122.9	117.2	120.9	0.27	0.30	0.27	0.30	119.8
iVCG A	99.2	103.2	105.2	97.8	1.6	1.6	4.0	3.9	101.3
iVCG B	102.0	99.1	92.3	91.0	1.8	1.7	4.2	3.9	96.1
iVCG C	86.9	110.2	87.5	86.5	1.6	1.6	4.1	4.1	92.8
iVCG D	89.1	105.9	90.1	95.6	1.5	1.5	4.4	4.4	95.2
iVCG E	88.6	108.6	95.4	103.2	1.5	1.3	3.9	3.9	99.0
iVCG F	89.1	93.81	90.0	111.7	1.5	1.4	4.0	3.5	96.2
iVCG M	99.0	92.6	99.2	115.3	0.8	0.7	2.9	2.8	101.5

sVCG=surface VCG. iVCG A= intracardiac VCG A: Can to RVC, A-tip to RV-ring, RV-tip to RVC. iVCG B: Can to RVC, Can to RV-ring, RV-tip to RVC. iVCG C: RVC to SVC, A-tip to RV-ring, RV-tip to RVC. iVCG D: A-tip to RV-ring, Can to RV-ring, RV-tip to RVC. iVCG E: Can to RVC, RVC to SVC, RV-tip to RVC. iVCG F: RVC to SVC, Can to RV-ring, RV-tip to RVC. iVCG M= Median iVCG. ISR=intrinsic sinus rhythm