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. 2022 Sep;65(9):1855-1865.
doi: 10.1007/s11427-021-2046-4. Epub 2022 May 5.

Twin peaks of in-hospital mortality among patients with STEMI across five phases of COVID-19 outbreak in China: a nation-wide study

Jianping Li  1 , Nan Zhang  1 , Ziyi Zhou  2   3 , Xiao Huang  4 , Weiyi Fang  5 , Hongbing Yan  6 , Jiyan Chen  7 , Weimin Wang  8 , Dingcheng Xiang  9 , Xi Su  10 , Bo Yu  11 , Yan Wang  12 , Yawei Xu  13 , Lefeng Wang  14 , Chunjie Li  15 , Kai Huang  16 , Xiaobin Wang  17 , Yong Huo  18 , Junbo Ge  19
Affiliations

Twin peaks of in-hospital mortality among patients with STEMI across five phases of COVID-19 outbreak in China: a nation-wide study

Jianping Li et al. Sci China Life Sci. 2022 Sep.

Abstract

Lockdown and re-opening may become cyclical due to the recurrent waves of the COVID-19 epidemic. Few studies have examined temporal trends and determinants of in-hospital mortality among patients with ST-segment elevation myocardial infarction (STEMI), a life-threatening condition that requires emergency medical care. Using nation-wide data before, during and after the Wuhan lockdown, we aimed to depict temporal patterns and major determinants of STEMI in-hospital mortality in China across five time periods of the COVID-19 epidemic. We analyzed the data of 283,661 STEMI patients who were admitted to 4,487 chest-pain-centers across China, from January 1, 2019 to May 31, 2020. Compared with the period before the lockdown, STEMI in-hospital mortality increased by 25% (OR 1.25, 95%CI 1.16-1.34) during Early Lockdown, by 12% (OR 1.12, 95%CI 1.03-1.22) during Later Lockdown, by 35% (OR 1.35, 95%CI 1.21-1.50) during Early Lift, and returned to pre-COVID risk (OR 1.04, 95%CI 0.95-1.14) during Later Lift. For each time-period, we observed a clear mortality gradient by timing and types of revascularization procedure. In conclusion, the COVID-19 epidemic had a significant adverse impact on STEMI in-hospital mortality, with bimodal peaks during early lockdown and early lift periods and clear mortality gradients by timing and types of revascularization procedure, independent of the time periods.

Keywords: COVID-19; STEMI; lockdown; mortality; re-opening.

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