2.1. Search strategy
A systematic review using Medline, Cochrane and Scopus databases have been performed by March 2020, incorporating a Bayesian network meta-analysis. A search strategy with a time interval from 1980 to 2020 was performed using the following search string for Medline (remaining strings have been reported in Supplementary Material): (((cabg[Title/Abstract]) OR bypass[Title/Abstract] OR cardiac surgery[Title/Abstract] OR revascularisation[Title/Abstract] OR revascularization[Title/Abstract])) AND kawasaki[Title/Abstract]. The articles were screened by three investigators (AS, JL, AM) initially by title and abstract, irrelevant articles were excluded, and subsequently full texts were evaluated for eligibility.