Footnotes

• Contributors BI and DA both drafted this editorial.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests BI: speaker’s fee from Edwards Lifesciences.

• Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

• Provenance and peer review Commissioned; internally peer reviewed.