A systematic literature review of economic evaluations and cost-of-illness studies of inherited cardiomyopathies.

"Conflict of interest I. Wiethoff, B. Goversen, M. Michels, J. van der Velden, M. Hiligsmann, T. Kugener and S. M. A. A. Evers declare that they have no competing interests."

"AcknowledgementsThis review is part of the project ‘Double Dose of energy and efforts of the national DOSIS consortium to design and test new diagnostic and treatment strategies for inherited cardiomyopathies (DOUBLE DOSE)’, which is funded by the Dutch Heart Foundation and Stichting Hartedroom (grant number: 2020B005)."

"The present review is part of the Dutch Double Dose research project, which aims to investigate the influence of metabolic stress on the pathophysiology of inherited CMs, in order to optimise diagnosis and treatment for CM patients []. For methodological guidance, the five-step approach used by van Mastrigt and colleagues was followed [–]. Transparent reporting was ensured by complying with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) guidelines []. A detailed study protocol was published in the International Prospective Register of Systematic Reviews (PROSPERO) under registration number CRD42021248484 []."