Table 2

Myocardial function, afterload and ventricular conduction in patients with unchanged conduction status after TAVI (n=108), new LBBB (n=28), survivors (n=118) and non-survivors (n=22)

BaselineAfter TAVIP value
Global longitudinal strain, %
 Unchanged conduction−15.3±4.4−16.5±3.9<0.001
 New LBBB−14.5±3.9−15.6±3.00.03
 Survivors−15.3±4.3−16.4±3.6<0.001
 Non-survivors−14.1±4.6−15.6±4.90.04
Left ventricular ejection fraction, %
 Unchanged conduction53±1154±90.17
 New LBBB50±1052±80.12
 Survivors52±1154±9<0.001
 Non-survivors50±1051±100.047
Mechanical dispersion, ms
 Unchanged conduction55±1751±170.023
 New LBBB51±1362±19<0.001
 Survivors54±1753±180.36
 Non-survivors49±1260±180.025
Aortic valve mean gradient, mm Hg
 Unchanged conduction53±1813±5<0.001
 New LBBB59±1511±3<0.001
 Survivors54±1912±5<0.001
 Non-survivors49±1312±4<0.001
Valvulo-arterial impedance, mm Hg m2/mL
 Unchanged conduction5.1±1.13.6±0.9<0.001
 New LBBB5.2±1.13.4±0.8<0.001
 Survivors5.1±1.13.6±0.9<0.001
 Non-survivors4.9±1.33.2±0.8<0.001
QRS duration, ms
 Unchanged conduction106±23107±210.19
 New LBBB95±11145±13<0.001
 Survivors103±22114±25<0.001
 Non-survivors105±20124±28<0.001
  • Values are mean±SD deviation.

  • LBBB, left bundle branch block; TAVI, transcatheter aortic valve implantation.