Right ventricular septal pacing: Safety and efficacy in a long term follow up

Table 4 Evolution of echocardiographic parameters: end-diastolic volume, end-systolic volume and ejection fraction in the NO pacing group (22/22 patients), in the right ventricular apical pacing group (33/33 patients) and in the parahisian group (121/230 patients)

		Basal	Follow-up	P
Contr (22 pts)	EDV (mL)	88 ± 25	99 ± 46	0.23 (ns)
	ESV (mL)	38 ± 13	46 ± 29	0.11 (ns)
	EF (%)	57 ± 5	56 ± 5	0.1 (ns)
RVA (33 pts)	EDV (mL)	98 ± 23	139 ± 31	< 0.0001
	ESV (mL)	44 ± 14	79 ± 22	< 0.0001
	EF (%)	56 ± 6	43 ± 9	< 0.0001
PH (121 pts)	EDV (mL)	100 ± 37	104 ± 40	0.35 (ns)
	ESV (mL)	49 ± 27	55 ± 31	0.05
	EF (%)	53 ± 11	49 ± 11	0.01