2022 Volume 35 Issue 1 Pages 1-3
In November 2019, Coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 infection, which originated in Wuhan, China, quickly spread all over the world and became a pandemic. Almost two years have passed since then, and information on COVID-19 and kidney disease has been accumulating. In several cohort studies, including one from Japan, elevated serum creatinine levels at admission were a risk factor for aggravation of COVID-19, but it is not clear whether this elevated serum creatinine level was due to chronic kidney disease (CKD). Therefore, non-dialysis dependent CKD is uncertain whether it is the risk of aggravation of COVID-19. On the other hand, COVID-19 has become clear as a high-risk condition of acute kidney injury, and sufficient caution for it is required.