Table 1. The search strategy summary.

Items	Specification
Date of search	1 May 2022–1 July 2022
Databases and other sources searched	PubMed
Search terms used	“ECMO AND bridge AND lung AND transplantation”, “ECLS AND bridge AND lung AND transplantation”
Timeframe	2015–2022
Inclusion and exclusion criteria	All the studies on ECLS bridge to lung transplantation in English language, with at least 20 patients and published between 2015 and 2022 were included. Abstract, case reports, conference presentations, editorials, expert opinions and review articles were excluded. Studies on ECLS bridge to lung retransplantation or multi-organ transplantation were also excluded
Selection process	EF independently selected and reviewed all initial articles, with additional review by II. Final article inclusion was determined by all the authors

ECLS, extracorporeal life support; ECMO, extracorporeal membrane oxygenation.