How Should We Manage PAR After TAVI?

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invasivecardiology

Stefan Toggweiler, MD

Evidence indicates that postprocedural moderate or severe paravalvular regurgitation (PAR) reduces life expectancy in such a way that it may even nullify the beneficial effect of TAVI.
Due to improved implantation techniques, knowledge, and materials, the rates of moderate or severe PAR have dropped to less than 5%-10% in most recently published trials and registries, but mild PAR still occurs quite frequently. Many interventional cardiologists now aim for the “perfect” result, and even mild PAR seems to justify postdilatation of a transcatheter valve. However, we should keep in mind that postdilatation carries the risks of annular injury, valve displacement, and embolization of calcific debris.
In our study published in the month’s JIC, we investigated the natural course of PAR after implantation of the self-expandable CoreValve. Patients underwent transesophageal echocardiography after 30 days and 1 year. In most patients, PAR improved. Very small jets disappeared, and larger…

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