Fu XY, Shen XF, Cheng YR, et al. - In this study, the impact of the COVID-19 outbreak on the treatment time of patients with ST-segment elevation myocardial infarction (STEMI) was explored in Hangzhou, China. Data of STEMI patients were retrospectively examined who admitted to the Hangzhou Chest Pain Center during a COVID-19 epidemic period in 2020 (24 cases) and the same period in 2019 (29 cases). Researchers recorded, analyzed, and compared the general characteristics of the patients.  During the COVID-19 epidemic, the pre-hospital and in-hospital treatment times of STEMI patients were longer than those before the epidemic. After the surgery, cumulative mortality was shown in the Kaplan-Meier survival curves in the 2020 group was significantly different higher than the 2019 group during the 28 days. During an epidemic, the diagnosis and treatment process of STEMI patients should be optimized to improve their prognosis.