title: Predominance of STEMI and severity of coronary artery disease in a cohort of patients hospitalized with acute coronary syndrome: a report from ABC Medical School.
abstract: BACKGROUND
  acute coronary syndromes (ACS) represent a widely prevalent health issue with high mortality in Brazil and worldwide. The severity of ACS is not known in patients in the city of São Bernardo do Campo a municipality contiguous and adjacent to the city of São Paulo.
  
  
  OBJECTIVE
  to study the profile of coronary disease in patients hospitalized with ACS who underwent coronary angiography in the emergency room between 2012 and 2013.
  
  
  METHODS
  this is an observational study that included consecutive patients with ACS admitted to the emergency room of a hospital. Data collection was performed using medical records with the following variables: sex, age, risk factors for cardiovascular disease, coronary angiography.
  
  
  RESULTS
  the sample in this period included 131 patients, of which 64.8% were men. The most prevalent diagnosis was ST-elevation myocardial infarction (STEMI) (57.2%) followed by non-ST-elevation myocardial infarction (NSTEMI) (22.1%) and unstable angina (UA) (20.6%). There were no significant differences in the epidemiology and risk factors between the diagnoses, except that heart failure was more prevalent in patients with UA.
  
  
  CONCLUSIONS
  there were no differences between groups regarding the coronaries involved; however, STEMI patients showed similar numbers of multi- and singlevessel lesions, NSTEMI patients showed more multivessel lesions, and UA patients showed more multivessel lesions or lesion-free arteries. Although multivessel lesions were prevalent in all groups, STEMI patients showed a significantly higher number of single-vessel lesions compared with the other acute coronary syndromes.
  
  
  CONCLUSIONS
  the study demonstrated a predominance of STEMI in the studied population, which differs from the usual results in ACS.
authors.affiliation: Faculdade de Medicina do ABC, Santo André, SP, Brazil.
authors.forename: Marcelo Rodrigues
authors.initials: MR
authors.lastname: Bacci
authors.affiliation: FMABC, Santo André, SP, Brazil.
authors.forename: Fernando Luiz Affonso
authors.initials: FL
authors.lastname: Fonseca
authors.affiliation: FMABC, Santo André, SP, Brazil.
authors.forename: Leonardo Fernando Ferrari
authors.initials: LF
authors.lastname: Nogueira
authors.affiliation: FMABC, Santo André, SP, Brazil.
authors.forename: Felipe Ribeiro
authors.initials: FR
authors.lastname: Bruniera
authors.affiliation: FMABC, Santo André, SP, Brazil.
authors.forename: Felipe Moreira
authors.initials: FM
authors.lastname: Ferreira
authors.affiliation: Universidade de São Paulo, SP, Brazil.
authors.forename: Danielle Magalhães de
authors.initials: DM
authors.lastname: Barros
authors.affiliation: Institute at Hospital do Coração, São Paulo, SP, Brazil.
authors.forename: Otavio
authors.initials: O
authors.lastname: Berwanger
authors.affiliation: Santa Casa de São Paulo Hospital, SP, Brazil.
authors.forename: Natalia Pin Chuen
authors.initials: NP
authors.lastname: Zing
authors.affiliation: FMABC, Santo André, SP, Brazil.
authors.forename: Neif
authors.initials: N
authors.lastname: Murad
authors.affiliation: FMABC, Santo André, SP, Brazil.
authors.forename: Antonio Carlos Palandri
authors.initials: AC
authors.lastname: Chagas
mesh_terms: D054058:Acute Coronary Syndrome / Q000453:epidemiology*; D000368:Aged; D000789:Angina, Unstable / Q000453:epidemiology*; D001938:Brazil / Q000453:epidemiology; D054059:Coronary Occlusion / Q000000981:diagnostic imaging / Q000453:epidemiology; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D005260:Female; D005919:Glomerular Filtration Rate / Q000502:physiology; D006760:Hospitalization; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D011859:Radiography; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects