Key result
TAVI linked to in-hospital conduction disturbances requiring pacemakers in ~12% before stabilizing at one year.
Why the study?
The incidence and progression of heart conduction disturbances following TAVI in patients with severe symptomatic aortic stenosis were not fully characterized over 1 year.
Comparison
Edwards SAPIEN (transapical or transfemoral) vs CoreValve (transfemoral) TAVI implants
Design
Prospective cohort study with serial ECG assessments
Follow-up
1 year
Authors
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May support intensified inpatient monitoring after TAVI; leaves open whether prolonged outpatient surveillance improves late outcomes.
Cohort (n=95)
Conduction disturbances following TAVI primarily develop during hospitalization and subsequently stabilize, though a small percentage of patients require late pacemaker implantation or suffer sudden death.
Salizzoni et al. (2014) conducted a cohort in severe symptomatic aortic stenosis (n=95). Transcatheter aortic valve implantation (TAVI) was evaluated on Incidence of heart conduction disturbances. Transcatheter aortic valve implantation increased conduction disturbances during hospitalization (11.6% required a pacemaker prior to discharge), which subsequently stabilized at 1-year follow-up.
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