Nature Reviews Cardiology (2019) https://doi.org/10.1038/s41569-018-0147-0 Published online 18 January 2019

In the version of this article initially published online, the Paravalvular Leak Device (PLD; Occlutech) was incorrectly described as having a “proximal disc that is slightly larger than the distal disc”, whereas the distal disc is actually slightly larger than the proximal disc. This error has been corrected for the HTML, PDF and print versions of the article.