TAVI was systematically associated with some degree of myocardial injury, with TA approach and baseline renal dysfunction determining a higher increase in biomarkers of myocardial injury. A greater degree of myocardial injury was associated with less improvement in LVEF and a higher cardiac mortality at follow-up.
Transcatheter aortic valve implantation was associated with a higher rate of complete AVB and PPI compared with SAVR in elderly patients with severe AS and similar baseline ECG findings. The presence of baseline right bundle branch block correlated with the need for PPI in the TAVI group.
The need for PPI following isolated AVR in elderly patients with severe symptomatic aortic stenosis was low. Pre-existing bundle branch block predicted the need for PPI. PPI determined a longer hospital stay, but had no effect on acute and long-term mortality.
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