Volume–outcome relationships in open and endovascular repair of abdominal aortic aneurysm: administrative data 2006–2018

Background The aim of this study was to use recent evidence to investigate and update volume–outcome relationships after open surgical repair (OSR) and endovascular repair (EVAR) of abdominal aortic aneurysm in England. Methods Hospital Episode Statistics (HES) data from April 2006 to March 2018 were obtained. The primary outcome was in-hospital death. Other outcomes included duration of hospital stay, readmissions within 30 days, and critical...