Abstract
AimCOVID-19 might have affected the care and outcomes of hospitalised acute myocardial infarction (AMI). We aimed to determine whether the COVID-19 pandemic changed patient response, hospital treatment and mortality from AMI.Methods and ResultsAdmission were classified as non ST-elevation myocardial infarction (NSTEMI) or STEMI at 99 hospitals in England through live feeding from the Myocardial Ischaemia National Audit Project between 1st January, 2019 and 22nd May, 2020. Time series plots were estimated using a 7-day simple moving average, adjusted for seasonality. From 23rd March, 2020 (UK lockdown) median daily hospitalisations decreased more for NSTEMI (69 to 35; IRR 0.51, 95% CI 0.47-0.54) than STEMI (35 to 25; IRR 0.74, 95% CI 0.69-0.80) to a nadir on 19th April, 2020. During lockdown, patients were younger (mean age 68.7 years vs. 66.9 years), less frequently diabetic (24.6% vs. 28.1%) or had cerebrovascular disease (7.0% vs. 8.6%). STEMI more frequently received primary PCI (81.8% vs 78.8%%), thrombolysis was negligible (0.5% vs. 0.3%), median admission-to-coronary angiography duration for NSTEMI decreased (26.2 vs. 64.0 hours), median duration of hospitalisation decreased (4 to 2 days), secondary prevention pharmacotherapy prescription remained unchanged (each >94.7%). Mortality at 30 days increased for NSTEMI (from 5.4% to 7.5%; OR 1.41, 95% CI 1.08-1.80), but decreased for STEMI (from 10.2% to 7.7%; OR 0.73, 95% CI 0.54-0.97).ConclusionsDuring COVID-19, there was a substantial decline in admissions with AMI. Those who presented to hospital were younger, less co-morbid and, for NSTEMI, had higher 30-day mortality.
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More From: European Heart Journal - Quality of Care and Clinical Outcomes
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