title: Initial experience with pre-activation of the cardiac catheterization lab and emergency room bypass for patients with ST-elevation myocardial infarction in Halifax, Nova Scotia.
abstract: BACKGROUND
  To determine whether pre-activation of the cardiac catheterization lab by Emergency Health Services (EHS) with a single call system in the field was associated with reduced time to reperfusion in patients with ST-Elevation Myocardial Infarction (STEMI) undergoing primary percutaneous coronary intervention (PPCI).
  
  
  METHODS
  Consecutive STEMI patients identified by EHS and subsequently taken to the Queen Elizabeth II Health Sciences Center (QEIIHSC) for PPCI between February 1, 2011 and January 30, 2013 were examined. Patients who had pre-activation of the catheterization lab from the field (pre-act group) after the acquisition of the LifeNet® system (Physio Control, Redmond Washington) were compared to those who had usual activation (routine group) prior to the acquisition of the LifeNet® system, for outcomes including treatment timeline data and mortality.
  
  
  RESULTS
  271 patients were included in the analysis, 149 patients in the pre-act group and 122 patients in the routine group. Door-to-device (DTD) times of less than 90min were achieved more frequently in the Pre-act group (91.9% vs. 62.2%; P<0.001). DTD time was shorter in the Pre-act group (48min IQR: 38 to 63min vs. 78min IQR: 64-101min; p=0.001) as was first medical contact-to-device (FMCTD) time (91min IQR: 78 to 106min vs. 115min IQR: 90 to 139min; P<0.001). False activation of the catheterization lab was infrequent (1.3%).
  
  
  CONCLUSIONS
  Implementation of catheterization lab pre-activation using the LifeNet® system was associated with more efficient reperfusion times as measured by reduced FMCTD and DTD times without excess false activation rates.
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Adil
authors: A
authors: Bata
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Ata Ur Rehman
authors: AUR
authors: Quraishi
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Michael
authors: M
authors: Love
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Lawrence
authors: L
authors: Title
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Hussein
authors: H
authors: Beydoun
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Tony
authors: T
authors: Lee
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Najaf
authors: N
authors: Nadeem
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Bakhtiar
authors: B
authors: Kidwai
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada.
authors: Catherine
authors: C
authors: Kells
authors: Division of Cardiology, Queen Elizabeth II Health Sciences Center, Dalhousie University, 1796 Summer Street, Halifax Infirmary, 2nd Floor, Halifax, Nova Scotia B3H 3A7, Canada. Electronic address: Helen.curran@nshealth.ca.
authors: Helen
authors: H
authors: Curran
mesh_terms: D000368:Aged; D006328:Cardiac Catheterization / Q000379:methods*; D004632:Emergency Medical Services / Q000379:methods*; D004636:Emergency Service, Hospital; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009674:Nova Scotia / Q000453:epidemiology; D012189:Retrospective Studies; D000072657:ST Elevation Myocardial Infarction / Q000453:epidemiology* / Q000601:surgery*; D061665:Time-to-Treatment
keywords: PPCI; Pre-activation; STEMI