key: cord-0932452-unm5yamp authors: Hosomi, Risa; Lefor, Alan Kawarai title: An invited commentary on “Acute Care Surgery during the COVID-19 pandemic in Spain: changes in volume, causes and complications. A multicentre retrospective cohort study” date: 2020-08-19 journal: Int J Surg DOI: 10.1016/j.ijsu.2020.08.015 sha: 614b8bb2a5b60f60cb922bd3a50783b8cf8b65bd doc_id: 932452 cord_uid: unm5yamp nan We read with great interest the paper "Acute Care Surgery during the COVID-19 pandemic (declared 11 March 2020) in Spain: changes in volume, causes and complications. A multicentre retrospective cohort study" by Valderrama et al (1) . The world has undergone drastic change due to the COVID-19 pandemic. This study identifies a number of significant issues of great interest to the surgical community and focuses on effects of the pandemic on the practice of acute care surgery. The study was conducted at three tertiary care facilities in Spain in March/April of 2020. There are two groups, a control group (1). In a large multicenter study of 1128 patients with confirmed COVID-19 infections, another group found significantly higher mortality in these patients (2) . It is noteworthy that 51.2% of these patients had pulmonary complications. Morbidity rates did increase significantly during the pandemic in the Valderrama study (1) although the difference was not significant in a multi-variate analysis. Overall the authors report fewer operations taking place during the pandemic Acute Care Surgery during the COVID-19 pandemic in Spain: changes in volume, causes and complications. A multicentre retrospective cohort study Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study