Pectoral muscle mass is not a robust prognostic factor for survival after left ventricular assist device (LVAD) implantation.

"Declarations Ethics approval and consent to participateThe study followed the principles of the Declaration of Helsinki and was approved by the Ethics Committee of the Heinrich Heine University, Dusseldorf (study number: 2020–832). Consent for publicationNot applicable. Competing interestsJPM is also an employee of the Berlin Heart GmbH. All authors declare that they have no competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Competing interests JPM is also an employee of the Berlin Heart GmbH. All authors declare that they have no competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"Funding Open Access funding enabled and organized by Projekt DEAL. The authors did not receive any funding for this study."