Association of admitting physician specialty and care quality and outcomes in non-ST-segment elevation myocardial infarction (NSTEMI): insights from a national registry
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AbstractAimLittle is known about the association between admitting physician specialty and care quality and outcomes for non-ST-segment elevation myocardial infarction (NSTEMI).Methods and resultsWe identified 288 420 patients hospitalized with NSTEMI between 2010 and 2017 in the UK Myocardial Infarction National Audit Project database. The cohort was dichotomized according to care under a non-cardiologist (n = 146 722) and care under a cardiologist (n = 141 698) within the first 24 h of admission to hospital. Patients admitted under a cardiologist were significantly younger (70 vs. 75 years, P < 0.001), and less likely to be female (32% vs. 39%, P < 0.001). Independent factors associated with admission under a cardiologist included prior history of percutaneous coronary intervention (PCI) [odds ratio (OR) 1.04, 95% confidence interval (CI) 1.01–1.07; P = 0.04], hypercholesterolaemia (OR 1.17, 95% CI 1.15–1.20; P < 0.001), hypertension (OR 1.03, 95% CI 1.01–1.04; P = 0.01), and admission to an interventional centre (OR 3.90, 95% CI 3.79–4.00; P < 0.001). Patients admitted under cardiology were more likely to receive optimal pharmacotherapy, undergo invasive coronary angiography (79% vs. 60%, P < 0.001), and receive revascularization in the form of PCI (52% vs. 36%, P < 0.001). Following propensity score matching, odds of in-hospital all-cause mortality (OR 0.81, 95% CI 0.79–0.85; P < 0.001), re-infarction (OR 0.78, 95% CI 0.66–0.91; P = 0.001), and major adverse cardiovascular events (OR 0.81, 95% CI 0.78–0.84; P < 0.001) were lower in patients admitted under a cardiologist.ConclusionPatients with NSTEMI admitted under a cardiologist within 24 h of hospital admission were more likely to receive guideline-directed management and had better clinical outcomes.
