Table 1. Summary of the literature search strategy.

Items	Specification
Date of search	The search for literature was conducted during March 2022 and included as well manuscript until 1st of April 2022
Databases and other sources searched	PubMed database
Search terms used	Heart failure and ACHD, heart transplantation in ACHD, guidelines heart failure and ACHD, ventricular assist device in ACHD, comorbidities in ACHD, device therapy in ACHD patients
Timeframe	All manuscripts until April 2022
Inclusion and exclusion criteria	All study types were included with focus on journals with an impact factor and all manuscripts had to be published in English language
Selection process	The literature search was done by Christoph Sinning, Michael Huntgeburth, Harald Kaemmerer and Koichiro Niwa. All authors had to consent to the literature included into the review

ACHD, adults with congenital heart disease.