Table 7.

Summary of studies comparing the rate of permanent pacemaker between the S3 and XT device

PPM	S3	XT	P value	Predictor/comments
Binder et al[40] 2015 Circulation interventions	17%	13%	0.01	Predictors: Depth, RBBB
Binder et al[14] 2013 JACC interventions	13.30%			Excluded patient with LBBB, PR > 200 ms No predictors studied
Husser et al[25] 2015 JACC interventions	15.20%			Predictors not studied
Binder et al[40] 2015 EuroIntervention	20.70%			Predictor > 8 mm depth of implants
Nijhoff et al[17] 2015 Circulation interventions	9.80%	8.80%	0.94	High implants: 80/20 in aorta as mentioned by authors