• Mayo Clinic proceedings · Jun 2021

    A Contemporary Population-Based Profile of Infective Endocarditis Using the Expanded Rochester Epidemiology Project.

    • Larry M Baddour, Aylin Shafiyi, Brian D Lahr, Nandan S Anavekar, James M Steckelberg, Walter R Wilson, M Rizwan Sohail, and Daniel C DeSimone.
    • Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN; Department of Cardiovascular Diseases, Mayo Clinic College of Medicine and Science, Rochester, MN. Electronic address: baddour.larry@mayo.edu.
    • Mayo Clin. Proc. 2021 Jun 1; 96 (6): 1438-1445.

    ObjectiveTo develop a contemporary profile of infective endocarditis (IE) among a population in 6 counties of Olmsted, Dodge, Mower, Steele, Waseca, and Freeborn in southern Minnesota between 2014 and 2018.Patients And MethodsAll possible and definite cases of IE (≥18 years) among residents of 6 counties in southern Minnesota, including Olmsted County, diagnosed between January 1, 2014, and December 31, 2018, were included in this retrospective, population-based investigation, using the Expanded Rochester Epidemiology Project (E-REP).ResultsOverall, 137 patients with IE developed incident IE in the 6-county region, corresponding to an age- and sex-adjusted incidence rate of 11.9 per 100,000 person-years. Men had a significantly higher incidence of IE (17.9 vs 6.8 per 100,000 person-years), and rates increased exponentially with age in both sexes. The median age of incident cases was 68.2 years, and 67.9% were male patients. The percentage of patients with histories of injection-drug use was low, at 6.7%. Bicuspid aortic valve was the most common (9.6%) native valve predisposing condition. Staphylococcus aureus was identified as the predominant pathogen in the overall group (34.8%), with viridans-group streptococci accounting for only 19.3% cases. Central nervous system and musculoskeletal complications were common. The 30-day readmission rate was 27.9%, and the 6-month mortality rate was 31.8%.ConclusionTo our knowledge, this is the first time that the population-based E-REP has been used to determine an age- and sex-adjusted IE incidence. Older male patients predominated, and S aureus was the most common pathogen. Based on these findings, it is not surprising that IE complications were frequently seen.Copyright © 2020 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.

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