Deferral of Non-Emergency Cardiovascular Interventions Triggers Increased Cardiac Emergency Admissions-Analysis of the COVID-19 Related Lockdown
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH(2022)
Abstract
Background: Data on the relation between non-emergency and emergency cardiac admission rates during the COVID-19 lockdown and post-lockdown period are sparse. Methods: Consecutive cardiac patients admitted to our tertiary heart center between 1 January and 30 June 2020 were included. The observation period of 6 months was analyzed in total and divided into three defined time periods: the pre-lockdown (1 January-19 March), lockdown (20 March-19 April), and post-lockdown (20 April-30 June) period. These were compared to the reference periods 2019 and 2022 using daily admission rates and incidence rate ratios (IRR). Results: Over the observation period from 1 January to 30 June, cardiac admissions (including non-emergency and emergency) were comparable between 2019, 2020, and 2022 (n = 2889, n = 2952, n = 2956; p = 0.845). However, when compared to the reference period 2019, non-emergency admissions decreased in 2020 (1364 vs. 1663; p = 0.02), while emergency admissions significantly increased (1588 vs. 1226; p < 0.001). Further analysis of the lockdown period revealed that non-emergency admissions dropped by 82% (IRR 0.18; 95%-CI 0.14-0.24; p < 0.001) and 42% fewer invasive cardiac interventions were performed (p < 0.001), whereas the post-lockdown period showed a 52% increase of emergency admissions (IRR 1.47; 95%-CI 1.31-1.65; p < 0.001) compared to 2019. Conclusions: We demonstrate a drastic surge of emergency cardiac admissions post-COVID-19 related lockdown suggesting that patients who did not keep their non-emergency appointment had to be admitted as an emergency later on.
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Key words
COVID-19,lockdown,cardiac event,non-emergency,emergency,admission,lockdown strategies,deferral
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