Ongoing COVID-19 Pandemic Effects on Admissions and In-Hospital Outcomes in Patients With ST-Elevation Myocardial Infarction (STEMI): An Albanian Observational Study.

Abstract

BackgroundMultiple studies conducted worldwide and in Albania documented an important reduction of acute ST-elevation myocardial infarction (STEMI) admissions during the Coronavirus Disease 19 (COVID-19) pandemic. There are few studies regarding STEMI admissions and outcomes during the ongoing pandemic after the initial lockdown. We aimed to study STEMI admissions and in-hospital outcomes after the COVID-19 lockdown period.MethodsA retrospective single-center study was conducted, collecting data for all consecutive STEMI admissions from March 9th, (the first COVID-19 case) until April 30th, the corresponding period of 2020 total lockdown, for years 2019 and 2021. The control period was considered the year 2019 [pre-pandemic (PP)] and the study period was in 2021 [ongoing pandemic (OP)]. The incidence rate ratio (IRR) 95% confidence interval (CI) was used to compare all-STEMI admissions, invasive procedures, and risk ratio (RR) 95% CI to compare the mortality and complications rate between the study and control period.ResultsThe study included 217 STEMI patients admitted in 2019, and 234 patients during the 2021 period. The overall-STEMI admissions IRR is in a similar range during the 2021 OP compared to the 2019 PP period IRR=1.07 (95%CI 0.90-1.28). Similar invasive procedures were observed during OP compared to PP period, respectively for coronary-angiography IRR= 1.07; (0.87-1.31), for all-PCI [1.12 (0.92-1.35)], and primary percutaneous coronary interventions (PCI) [1.09 (0.89-1.34)]. The STEMI death rate during OP compared to PP period was similar (7.3 vs. 7.4%), RR=1.01 (0.53-1.96), and a non-significant lower primary-PCI-death rate (4.0 vs 4.8%), RR= 0.83 (0.30-2.3)].ConclusionsAfter the initial reduction of admissions and invasive procedures in STEMI patients during the 2020 lockdown period and the increase of all-STEMI mortality, the number of hospitalizations, invasive procedures, and mortality returned to a similar range during OP compared to the PP period despite a highly incident ongoing COVID-19 pandemic.