Retrospective Study
Copyright ©The Author(s) 2016.
World J Cardiol. Dec 26, 2016; 8(12): 735-745
Published online Dec 26, 2016. doi: 10.4330/wjc.v8.i12.735
Table 1 Baseline characteristics
VariableS3-THV (n = 283)XT-THV (n = 507)P value
Age82.8 ± 7.183.5 ± 7.00.14
Female sex137 (48.4)275 (54.3)0.12
STS-PROM, %5.3 ± 3.56.4 ± 4.0< 0.0001
Logistic EuroSCORE, %15.7 ± 10.818.8 ± 11.5< 0.0001
NYHA class 3 or 4162 (59.1)383 (75.8)< 0.0001
History of syncope1 (0.5)10 (2.1)0.19
Atrial arrhythmia (flutter or fibrillation)80 (29.5)135 (27.8)0.67
Diabetes71 (25.1)124 (24.5)0.86
Hypertension161 (71.6)344 (68.8)0.49
Dyslipidemia99 (44.0)263 (52.6)0.04
Active smoker4 (1.4)18 (3.6)0.11
Previous PPM35 (12.4)60 (11.8)0.91
Previous PCI81 (29.3)114 (22.9)0.06
Previous CABG25 (9.0)51 (10.3)0.62
Previous SAVR2 (0.7)7 (1.4)0.5
Previous stroke25 (8.8)39 (7.7)0.59
Peripheral vascular disease56 (19.8)143 (28.4)0.01
eGFR, mL/min per 1.73 m262.8 ± 24.661.4 ± 22.60.42
eGFR < 40 mL/min per 1.73 m282 (16.2)41 (14.5)0.61
Dialysis4 (1.5)13 (2.6)0.44
Chronic obstructive pulmonary disease33 (11.7)110 (21.9)< 0.0001
Body mass index, kg/m226.5 ± 5.126.3 ± 4.90.61
LVEF, %54.9 ± 14.853.6 ± 14.20.24
LVEF < 30%55 (11.1)31 (11.4)0.91
Mean aortic gradient, mmHg46.7 ± 15.346.9 ± 15.30.92
AVA, cm20.67 ± 0.170.65 ± 0.140.31
Pulmonary artery systolic pressure, mmHg44.5 ± 13.046.5 ± 12.90.06
Pulmonary artery systolic pressure > 50 mmHg64 (28.3)123 (28.5)1
Table 2 Procedural characteristics
Procedural characteristicS3-THV (n = 283)XT-THV (n = 507)P value
Transfemoral approach232 (82.6)273 (53.8)< 0.0001
Local anesthesia232 (82.6)271 (54.2)< 0.0001
Predilatation50 (17.7)440 (86.8)< 0.0001
Postdilatation45 (15.9)61 (12.0)0.13
Implanted device size< 0.0001
23 mm111 (39.8)127 (25.1)
26 mm101 (36.2)270 (53.4)
29 mm67 (24.0)109 (21.5)
Valve area oversizing, %11.5 ± 9.822.9 ± 11.2< 0.0001
Device diameter/annulus diameter (area-derived)1.05 ± 0.051.11 ± 0.05< 0.0001
Need for seconde valve implantation7 (2.5)8 (1.6)0.42
Annulus rupture0 (0)13 (2.6)0.01
Conversion to SAVR2 (0.7)14 (2.8)0.06
Contrast use (mL)108.2 ± 42.7131.6 ± 60.9< 0.0001
Fluoroscopy time (min)17.4 ± 9.916.5 ± 9.80.28
Table 3 Thirty-day and 1-year outcomes
30-d outcomesS3-THV (n =283)XT-THV (n = 507)Odds ratio (95%CI)P valueAdjusted odds ratio (95%CI)Adjusted P value
Death8 (3.5)42 (8.7)0.36 (0.16-0.81)0.010.44 (0.12-1.56)0.21
Stroke4 (1.4)13 (2.8)0.51 (0.16-1.58)0.240.59 (0.08-4.33)0.6
Myocardial infarction0 (0)2 (0.4)0 (0-∞)1
New pacemaker implantation143 (17.3)44 (9.8)1.88 (1.19-2.97)0.0071.68 (1.05-2.69)0.03
Major vascular complication8 (2.8)50 (9.9)0.27 (0.13-0.57)0.0010.20 (0.09-0.44)< 0.0001
Paravalvular regurgitation > mild6 (2.4)47 (9.7)0.23 (0.10-0.55)0.0010.20 (0.08-0.47)< 0.0001
Acute kidney injury3 (1.1)69 (13.6)0.07 (0.02-0.22)< 0.00010.12 (0.04-0.39)< 0.0001
Mean gradient > 20 mmHg7 (2.8)6 (1.3)2.48 (0.78-7.89)0.13
Mean gradient, mmHg11.8 ± 5.810.0 ± 5.0< 0.0001
Total hospital length of stay, d [median (IQR)]8 [5-13]9 [7-14]< 0.0001
1-yr outcomesP valueAdjusted hazard ratio (95%CI)Adjusted P value
Death20 (25.7)87 (20.1)0.240.86 (0.52-1.42)0.55
Table 4 Causes of death at 1 year in the SAPIEN 3 transcatheter heart valve group
PatientDays to deathCause of death
10Dissection of ascending aorta
22Left main compression/cardiogenic shock
33Iliac rupture
45Sudden cardiac death
510Cardiogenic shock
622Heart failure
724Subdural hematoma
825Unknown
931Stroke
1036Acute renal failure
1162Unknown
1287Heart failure
1396Heart failure
14133Unknown
15200Sudden cardiac death
16202Cancer
17247Myocardial infarction
18268Septic shock
19305Chronic obstructive pulmonary disease acute exacerbation
20326Major stroke
Table 5 Electrocardiographic and angiographic characteristics according to new permanent pacemaker requirement in the SAPIEN 3 transcatheter heart valve group
VariableNew PPM (n = 43)No PPM (n = 201)P value
Complete RBBB12 (32.4)17 (9.5)0.001
Complete LBBB0 (0)14 (7.8)0.14
Fascicular block12 (32.4)33 (18.4)0.07
QRS duration, ms108 ± 26101 ± 230.1
PR duration, ms196 ± 37183 ± 300.04
Implant depth (septal), mm5.3 ± 2.45.0 ± 2.60.67
Implant depth (non-septal), mm4.9 ± 2.45.2 ± 1.90.64
Device lack of coaxiality during deployment, mm4.0 ± 3.62.9 ± 2.50.06
Table 6 Predictors of new pacemaker implantation in the S3 group
ParameterUnivariate analysis
Multivariate analysis
ORP valueOR95%CIP value
Complete RBBB4.6< 0.0014.91.88-12.950.001
Complete LBBB11---
Fascicular block2.120.061.880.71-5.000.2
QRS duration (per 10 ms increment)1.120.10.870.65-2.720.345
PR duration (per 10 ms increment)1.140.051.141.00-1.290.05
Implant depth (septal, per 1 mm increment)1.050.66---
Implant depth (non-septal, per 1 mm increment)0.940.63---
Device lack of coaxiality during implant (per 1 mm increment)1.130.071.131.00-1.290.049
Table 7 Summary of studies comparing the rate of permanent pacemaker between the S3 and XT device
PPMS3XTP valuePredictor/comments
Binder et al[40] 2015 Circulation interventions17%13%0.01Predictors: Depth, RBBB
Binder et al[14] 2013 JACC interventions13.30%Excluded patient with LBBB, PR > 200 ms No predictors studied
Husser et al[25] 2015 JACC interventions15.20%Predictors not studied
Binder et al[40] 2015 EuroIntervention20.70%Predictor > 8 mm depth of implants
Nijhoff et al[17] 2015 Circulation interventions9.80%8.80%0.94High implants: 80/20 in aorta as mentioned by authors