RT Journal Article SR Electronic T1 In-hospital outcomes and prevalence of comorbidities in patients with ST-elevation myocardial infarction with and without infective endocarditis: insight from the National Inpatient Sample (2013–2014) JF Journal of Investigative Medicine JO J Investig Med FD BMJ Publishing Group Ltd SP 756 OP 760 DO 10.1136/jim-2020-001519 VO 69 IS 3 A1 Michael Albosta A1 Shakeel M Jamal A1 Asim Kichloo A1 Farah Wani A1 Beth Bailey A1 Jagmeet Singh A1 Ronak Soni A1 Michael Aljadah A1 Melissa Beshay A1 Bashar Al Jayyousi A1 Nicholas Haddad A1 Khalil Kanjwal YR 2021 UL http://hw-f5-jim.highwire.org/content/69/3/756.abstract AB In patients with infective endocarditis (IE), ST-elevation myocardial infarction (STEMI) is an uncommon phenomenon. Due to limited data, we intend to evaluate the clinical outcomes in hospitalized patients with STEMI with and without underlying IE. Mortality and morbidity are exponentially worse in STEMI with concomitant IE when compared with without IE. Patients with primary diagnosis of STEMI with and without IE were identified by querying the Healthcare Cost and Utilization Project database of the National Inpatient Sample for the years 2013 and 2014 based on International Classification of Diseases, Ninth Revision codes. During 2013 and 2014, a total of 117,386 patients were admitted with the principle diagnosis of STEMI, out of whom 305 had comorbid IE. There was a significantly increased in-hospital mortality (27.5% vs 10.8%), length of stay (LOS) (14 days vs 5 days), acute kidney injury (AKI; 44.9% vs 18.7%), stroke (23.6% vs 3%), aortic valve replacement (9.5% vs 0.3%), mitral valve replacement (0.2%–5.2%), sepsis (50% vs 6%) and acute respiratory failure (36.7% vs 16.7%) in patients with STEMI with IE when compared with patients with STEMI and without comorbid IE. STEMI without IE had a higher number of angiographies (58.7% vs 25.9%) and percutaneous coronary interventions (50.7% vs 14.4%) during the hospital course when compared with STEMI with IE. In conclusions, hospitalized patients with STEMI with a concurrent diagnosis of IE are at higher risk of in-hospital mortality, increased LOS, AKI, stroke, valve replacements, and acute respiratory failure.