Clinical impact of intraventricular conduction abnormalities after transcatheter aortic valve implantation with balloon-expandable valves
American Journal of Cardiology Oct 24, 2018
Miura M, et al. – Authors of this retrospective study evaluated the relationship between intraventricular conduction abnormalities (ICA) and clinical outcomes following transcatheter aortic valve implantation (TAVI) with balloon-expandable valves in 201 consecutive patients who underwent TAVI using balloon-expandable valves (mean age, 84.8 ± 5.7 years; women, 64%). Participants were divided into two groups: those with and without ICA (new-ICA and no-ICA groups), in whom 1-year outcomes were assessed. ICA was defined as new onset of complete left bundle branch block or pacemaker implantation within 2 weeks following TAVI. The researchers observed low 1-year all-cause mortality in the patients with ICA, but the two groups did not differ significantly. After TAVI with balloon-expandable valves, 23% of patients presented with ICA and during the follow-up, approximately 90% recovered from ICA. One-year all-cause mortality between the new-ICA and no-ICA groups did not differ significantly.
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