Chapter 54

Paravalvular Leak Closure and Ventricular Septal Defect Closure

First published: 06 May 2022

Summary

After prosthetic valve replacement, up to 17% of prosthetic mitral valves and 10% of prosthetic aortic valves develop peri-prosthetic regurgitation. Paravalvular leak can also be seen following transcatheter aortic valve replacement (TAVR), though the incidence of significant leak has been decreasing with newer generation TAVR valves. This chapter discusses the fundamental principles of paravalvular regurgitation evaluation and percutaneous closure. Ventricular septal defects (VSD) can be divided into congenital (comprising up to 20% of congenital heart defects) and acquired etiologies resulting from either myocardial infarction, traumatic, or post-surgical. Isolated VSD represents the most common congenital heart defect. The Amplatzer Muscular VSD Occluder has a double disk that makes the occluder fit particularly well around bioprosthetic mitral valves.

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