Footnotes

• Contributors TI: literature search, study design, patient inclusion, data collection, data analysis, statistical analysis, data interpretation, drafting of the manuscript and final approval. KI, NI, AS, TG and FM: patient inclusion, data collection, critical revision and final approval of the manuscript. VD, AYBT and KFB: critical revision and final approval of the manuscript.

• Competing interests TI: Consultant for Xlumena. KFB: the inventor of the AXIOS stent and delivery system and the founder of Xlumena.

• Patient consent Obtained.

• Ethics approval Ethical Committee and board of Tokyo Medical University.

• Provenance and peer review Not commissioned; internally peer reviewed.