Where is the exact origin of narrow premature ventricular contractions manifesting qR in inferior wall leads?

Table 5 Summaries of electrocardiogram characteristics of the three groups

Group	Number	QRS pattern in leads V1				QRS pattern in leads V2-V3			Transition Zone		QRS duration (ms)
Group	Number	R or rsR’	Rs	rs or rS	qRs or qR	Rs orqRs	RS(R/S > 1)	RS(R/S ≤ 1)	≤V1	V3-V4	QRS duration (ms)
L-RCC ILT	16	6	9*	0	1	14*	2	0	16*	0	100.44 ± 3.49**
LAF	19	16*^#	0^#	0	3	6^#	12	1	19*	0	116.07 ± 7.96*^#
Failure	5	0	0	5	0	0	0	5	0	5	91.80 ± 6.94

Annotation: compared with ablation failure group, *p < 0.01, **p < 0.05; compared with RCC-LCC LIT, # p < 0.01
L-RCC ILT Left coronary cusp-right coronary cusp interleaflet triangle, LAF left anterior fascicle

ISSN: 1471-2261