title: Door-to-ECG time in patients with chest pain presenting to the ED.
abstract: OBJECTIVE
  To describe time to electrocardiogram (ECG) acquisition, identify factors associated with timely acquisition, and evaluate the influence of time to ECG on adverse clinical outcomes.
  
  
  METHODS
  We measured the door-to-ECG time for emergency department patients enrolled in prospective chest pain registry. Clinical outcomes were defined as occurrence of myocardial infarction or death within 30 days of the visit.
  
  
  RESULTS
  Among patients with acute coronary syndrome (ACS), 34% and 40.9% of patients with non-ST-elevation ACS and ST-elevation myocardial infarction (STEMI), respectively, had an ECG performed within 10 minutes of arrival. A delay in ECG acquisition was only associated with an increase risk of clinical outcomes in patients with STEMI at 30 days (odds ratio, 3.95; 95% confidence interval, 1.06-14.72; P = .04).
  
  
  CONCLUSIONS
  Approximately one third of patients with ACS received an ECG within 10 minutes. A prolonged door-to-ECG time was associated with an increased risk of clinical outcomes only in patients with STEMI.
authors.affiliation: Division of Emergency Medicine, University of California, Davis Medical Center, Sacramento, 95817, USA. dbdiercks@ucdavis.edu
authors.forename: Deborah B
authors.initials: DB
authors.lastname: Diercks
authors.forename: J Douglas
authors.initials: JD
authors.lastname: Kirk
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Lindsell
authors.forename: Charles V
authors.initials: CV
authors.lastname: Pollack
authors.forename: James W
authors.initials: JW
authors.lastname: Hoekstra
authors.forename: W Brian
authors.initials: WB
authors.lastname: Gibler
authors.forename: Judd E
authors.initials: JE
authors.lastname: Hollander
mesh_terms: D000328:Adult; D000368:Aged; D000789:Angina, Unstable / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D002637:Chest Pain / Q000209:etiology*; D004562:Electrocardiography; D004636:Emergency Service, Hospital; D005260:Female; D005500:Follow-Up Studies; D019983:Guideline Adherence; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D017063:Outcome Assessment, Health Care; D012189:Retrospective Studies; D013997:Time Factors