BACKGROUND: Most studies of the epidemiology and treatment of acute myocardial infarction (AMI) have focused on patients who experienced onset of their symptoms in the community and then presented to the hospital. There are, however, patients whose symptoms of AMI begin after hospitalization for other medical conditions. The purposes of this study were to determine the prevalence of in-hospital AMI in the Veterans Health Administration (VHA) and to compare baseline characteristics, treatments, and outcomes according to whether individuals presented with AMI or had an in-hospital AMI. METHODS: This was a retrospective cohort study of 7054 veterans who were hospitalized for AMI in 127 VHA medical centers between July 2003 and August 2004. The main outcome measure was 30-day mortality. Key covariates included age, body mass index, admission systolic blood pressure, heart rate, previous use of lipid-lowering drugs, elevated admission troponin value, prolonged and/or atypical chest pain on admission, and ST-segment elevation on the initial electrocardiogram. RESULTS: There were 792 patients (11.2%) who had AMI while hospitalized for other medical conditions. These patients differed substantially from those who presented to the hospital with AMI. The odds of 30-day mortality were greater in the in-hospital group (odds ratio, 3.6; 95% confidence interval, 3.1-4.3; P<.001) and remained higher after statistical adjustment (odds ratio, 2.0; 95% confidence interval, 1.7-2.4; P<.001). CONCLUSION: Although most attention has been paid to patients with AMI admitted via the community emergency medical system or through the emergency department, AMI occurring during hospitalization for other medical problems is an important clinical problem.
BACKGROUND: Most studies of the epidemiology and treatment of acute myocardial infarction (AMI) have focused on patients who experienced onset of their symptoms in the community and then presented to the hospital. There are, however, patients whose symptoms of AMI begin after hospitalization for other medical conditions. The purposes of this study were to determine the prevalence of in-hospital AMI in the Veterans Health Administration (VHA) and to compare baseline characteristics, treatments, and outcomes according to whether individuals presented with AMI or had an in-hospital AMI. METHODS: This was a retrospective cohort study of 7054 veterans who were hospitalized for AMI in 127 VHA medical centers between July 2003 and August 2004. The main outcome measure was 30-day mortality. Key covariates included age, body mass index, admission systolic blood pressure, heart rate, previous use of lipid-lowering drugs, elevated admission troponin value, prolonged and/or atypical chest pain on admission, and ST-segment elevation on the initial electrocardiogram. RESULTS: There were 792 patients (11.2%) who had AMI while hospitalized for other medical conditions. These patients differed substantially from those who presented to the hospital with AMI. The odds of 30-day mortality were greater in the in-hospital group (odds ratio, 3.6; 95% confidence interval, 3.1-4.3; P<.001) and remained higher after statistical adjustment (odds ratio, 2.0; 95% confidence interval, 1.7-2.4; P<.001). CONCLUSION: Although most attention has been paid to patients with AMI admitted via the community emergency medical system or through the emergency department, AMI occurring during hospitalization for other medical problems is an important clinical problem.
Authors: Prashant Kaul; Jerome J Federspiel; Xuming Dai; Sally C Stearns; Sidney C Smith; Michael Yeung; Hadi Beyhaghi; Lei Zhou; George A Stouffer Journal: JAMA Date: 2014-11-19 Impact factor: 56.272
Authors: Edward O McFalls; Greg Larsen; Gary R Johnson; Fred S Apple; Steven Goldman; Andrew Arai; Brahmajee K Nallamothu; Robert Jesse; Scott T Holmstrom; Patricia L Sinnott Journal: Am J Med Date: 2011-05-24 Impact factor: 4.965
Authors: Emily B Levitan; Olusola Top Olubowale; Christopher M Gamboa; J David Rhodes; Todd M Brown; Paul Muntner; Luqin Deng; Monika M Safford Journal: Ann Epidemiol Date: 2015-02-12 Impact factor: 3.797
Authors: Matthew S Freiberg; Chung-Chou H Chang; Lewis H Kuller; Melissa Skanderson; Elliott Lowy; Kevin L Kraemer; Adeel A Butt; Matthew Bidwell Goetz; David Leaf; Kris Ann Oursler; David Rimland; Maria Rodriguez Barradas; Sheldon Brown; Cynthia Gibert; Kathy McGinnis; Kristina Crothers; Jason Sico; Heidi Crane; Alberta Warner; Stephen Gottlieb; John Gottdiener; Russell P Tracy; Matthew Budoff; Courtney Watson; Kaku A Armah; Donna Doebler; Kendall Bryant; Amy C Justice Journal: JAMA Intern Med Date: 2013-04-22 Impact factor: 21.873
Authors: Kaku A Armah; Chung-Chou H Chang; Jason V Baker; Vasan S Ramachandran; Matthew J Budoff; Heidi M Crane; Cynthia L Gibert; Matthew B Goetz; David A Leaf; Kathleen A McGinnis; Krisann K Oursler; David Rimland; Maria C Rodriguez-Barradas; Jason J Sico; Alberta L Warner; Priscilla Y Hsue; Lewis H Kuller; Amy C Justice; Matthew S Freiberg Journal: Clin Infect Dis Date: 2013-09-24 Impact factor: 9.079