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Table 2 Procedural data and outcomes

From: Balloon-expandable transcatheter aortic valve implantation with or without pre-dilation – results of a meta-analysis of 3 multicenter registries

 

TAVI with BAV

TAVI without BAV

P-value

N

Value

N

Value

Valve size

339

 

355

 

< 0.001

 20–23 mm

 

28.9

 

31.0

 

 26 mm

 

45.1

 

41.1

 

 29 mm

 

26.0

 

27.9

 

Post-delivery balloon dilation (%)

339

22.4

355

15.5

0.020

Quantity contrast agent used (mL)

303

100 (73–131)

349

95 (70–126)

0.343

Access complications (%)

339

0.9

355

2.3

0.224

Hemodynamic instability (%)

117

5.1

277

2.5

0.219

Catecholamine use (inotropes) (%)

117

17.9

277

9.0

0.016

Effective orifice area post-surgery

119

1.89 (1.59/2.30)

114

1.80 (1.50/2.20)

0.378

Indexed effective orifice area

282

0.38 (0.31/0.46)

251

0.39 (0.31/0.46)

0.348

AV mean PG post-surgery

286

9.0 (6.0/12.0)

252

9.0 (6.0/12.8)

0.862

Paravalvular regurgitation

339

 

351

 

< 0.001

 None/trace

 

78.5

 

84.3

 

 Mild

 

18.9

 

15.1

 

 Moderate

 

2.4

 

0.6

 

 Severe

 

0.3

 

0.0

 

Device success (%)

339

97.9

355

99.2

0.214

Second valve needed (%)

339

1.2

355

0.8

0.719

Conversion to surgery (%)

141

3.5

280

2.1

0.518

Coronary artery obstruction requiring intervention (%)

213

0.9

71

0.0

1.000

Device malfunction (%)

339

0.6

355

0.3

0.616

Atrioventricular block (%)

339

4.1

355

1.4

0.035

Aortic root rupture (%)

339

0.3

355

0.0

0.488

Correct positioning of a single prosthetic valve into the proper anatomical location

339

99.1

355

99.7

0.363

Intended performance of the prosthetic valve

287

97.9

217

98.6

0.738

  1. Values are median (interquartile range) unless indicated otherwise
  2. AV Aortic valve, BAV Balloon aortic valvuloplasty, CI Confidence interval, OR Odds ratio, PG Pressure gradient, TAVI Transcatheter aortic valve implantation