COVID-19, Chest pain center, ST-segment elevation myocardial infarction, D-to-W, Time prediction, Diseases of the circulatory (Cardiovascular) system, RC666-701

Abstract Introduction ST-segment elevation myocardial infarction (STEMI) is a life-threatening cardiovascular emergency necessitating rapid reperfusion. During the COVID-19 pandemic, healthcare providers faced the challenge of ensuring timely STEMI interventions while managing the risk of viral transmission in hospitals. This study aims to analyze changes in the door-to-wire (D-to-W) time for STEMI treatment across three pandemic phases—early pre-epidemic phase (Group C), initial lockdown phase (Group A), and intermediate normalization phase (Group B). It also examines the impact of digital communication tools, collectively referred to as “InterNet+” (e.g., Twitter, WeChat), on treatment processes. Methods Based on data of 630 STEMI patients treated in Chest Pain Center in a particular hospital in China from 2019 to 2020, changes in D-to-W time in different groups are measured. Time intervals in STEMI treatment process are also predicted by Bayesian statistics approach. The study investigated the influence of InterNet+ utilization before and after the pandemic through a questionnaire-based assessment. Results For transfer-non-emergency- treatment, the time from first-electrocardiogram to preliminary-diagnosis in Group-A is significantly longer than that in Groups-B and -C (p = 0.004, p = 0.004); the time from decision-on-intervention to catheterization-room-activation in Group-A and -B is significantly longer than that in Group-C (p = 0.003, p