Key result
TAVI is linked to a ~7% moderate PVL rate, occurring more frequently with CoreValve.
Why the study?
Does the type and size of TAVI device affect the occurrence of paravalvular leak and short-term survival in patients with severe aortic stenosis?
Observational (n=331)
Yes
Does the type and size of TAVI device affect the occurrence of paravalvular leak and short-term survival in patients with severe aortic stenosis?
Paravalvular leak remains a frequent complication after TAVI and is device-dependent, though moderate PVL did not significantly impact 6-month mortality in this registry.
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Device type was associated with moderate PVL rates but not 6-month mortality; leaves open causal effects on TAVI outcomes.
Kleczyński et al. (2015) conducted an observational in Severe aortic stenosis (n=331). Transcatheter aortic valve implantation (TAVI) was evaluated on Occurrence of moderate paravalvular leak (PVL). Transcatheter aortic valve implantation was associated with mild paravalvular leak in 54.7% and moderate leak in 6.6% of patients, with moderate leak occurring more frequently with the CoreValve prosthesis (p=0.02).
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