Background Studies have reported significant reduction in acute myocardial infarction-related hospitalizations during the coronavirus disease 2019 (COVID-19) pandemic. However, whether these trends ...are associated with increased incidence of out-of-hospital cardiac arrest (OHCA) in this population is unknown. Methods and Results Acute myocardial infarction hospitalizations with OHCA during the COVID-19 period (February 1-May 14, 2020) from the Myocardial Ischaemia National Audit Project and British Cardiovascular Intervention Society data sets were analyzed. Temporal trends were assessed using Poisson models with equivalent pre-COVID-19 period (February 1-May 14, 2019) as reference. Acute myocardial infarction hospitalizations during COVID-19 period were reduced by >50% (n=20 310 versus n=9325). OHCA was more prevalent during the COVID-19 period compared with the pre-COVID-19 period (5.6% versus 3.6%), with a 56% increase in the incidence of OHCA (incidence rate ratio, 1.56; 95% CI, 1.39-1.74). Patients experiencing OHCA during COVID-19 period were likely to be older, likely to be women, likely to be of Asian ethnicity, and more likely to present with ST-segment-elevation myocardial infarction. The overall rates of invasive coronary angiography (58.4% versus 71.6%;
<0.001) were significantly lower among the OHCA group during COVID-19 period with increased time to reperfusion (mean, 2.1 versus 1.1 hours;
=0.05) in those with ST-segment-elevation myocardial infarction. The adjusted in-hospital mortality probability increased from 27.7% in February 2020 to 35.8% in May 2020 in the COVID-19 group (
<.001). Conclusions In this national cohort of hospitalized patients with acute myocardial infarction, we observed a significant increase in incidence of OHCA during COVID-19 period paralleled with reduced access to guideline-recommended care and increased in-hospital mortality.
Objectives The goal of this study was to report outcomes from percutaneous coronary intervention (PCI) to an unprotected left main stem (UPLMS) stenosis according to presenting syndrome, ...including ST-segment elevation myocardial infarction (STEMI), non–ST-segment elevation acute coronary syndrome (NSTEACS), and chronic stable angina (CSA). Background There are no published whole-country data concerning patient outcomes following PCI to UPLMS. Methods This study is a prospective national cohort study using data from the British Cardiovascular Intervention Society (BCIS) registry from January 1, 2005, through December 31, 2010. Results Of 5,065 patients having PCI to an UPLMS, 784 (15.5%) presented with STEMI, 2,381 (47.0%) with NSTEACS, and 1,900 (37.5%) with CSA. Crude 30-day and 1-year mortality rates were STEMI: 28.3% and 37.6%, NSTEACS: 8.9% and 19.5%, and CSA: 1.4% and 7.0%, respectively. Unadjusted in-hospital major adverse cardiovascular and cerebrovascular event rates were STEMI: 26.6%, NSTEACS: 6.6%, and CSA: 3.3%. Risk of 30-day mortality was much greater for STEMI and NSTEACS patients than CSA (STEMI adjusted odds ratio aOR: 29.45, 95% confidence interval CI: 19.37 to 44.80, NSTEACS aOR: 6.45, 95% CI: 4.27 to 9.76). More than 40% of patients presenting with STEMI had cardiogenic shock, in whom mortality was higher than in STEMI cases without shock (30 days: 52.0% vs. 11.7%, 1 year: 61.1% vs. 20.9%). Radial access, compared with the femoral approach, was associated with a lower risk of 30-day mortality (STEMI aOR: 0.37, 95% CI: 0.21 to 0.62; NSTEACS aOR: 0.66, 95% CI: 0.45 to 0.97). Conclusions More than one-half of the patients who received UPLMS PCI were acute where outcomes were much worse than elective cases. Cardiogenic shock is common in STEMI patients, of whom more than one-half die at 30 days. The radial approach was associated with reduced early mortality in acute cases.
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