title: [Epidemiological characteristics of out-of-hospital cardiorespiratory arrest recorded by the 061 emergencies system (SAMU) in the Balearic Islands (Spain), 2009-2012].
abstract: OBJECTIVE
  To describe the epidemiology of out-of-hospital cardiorespiratory arrest (OHCA) and identify factors associated with recovery of spontaneous circulation (ROSC).
  
  
  METHODS
  Observational study of OHCA registered on a continuous basis in the Emergency Medical Services (EMS) database during 2009-2012.
  
  
  METHODS
  The islands of Mallorca, Ibiza, Menorca and Formentera (Balearic Islands, Spain).
  
  
  METHODS
  OHCA in patients ≥ 18 years of age. The main variables were: Patient sex, age, probable cause, place of arrest, bystander, witnessed, basic life support (BLS), shockable rhythm, intervention time, semi-automatic defibrillator (AED), duration of cardiopulmonary arrest (CA), and ROSC. Independent variables were defined according to the Utstein protocol, and the dependent variable was defined as ROSC.
  
  
  RESULTS
  The EMS treated 1170 OHCAs (28/100,000 persons-year). We included 1130 CA. The mean age was 61.4 years (73.4% males). Most CA (72.3%) were of cardiac etiology, and 84.7% were witnessed. A total of 840 (74.3%) received BLS and 400 (47.6%) did so before arrival of the EMS (45 by bystander relatives). AED was available in 330 cases CA (29.2%) (96 with shockable rhythm). The interval between emergency call and BLS and between emergency call and advanced life support was 8.4 and 15.8min, respectively. Shockable rhythm was monitored in 257 CAs (22.7%). ROSC occurred in 261 (23.1%). Factors associated with ROSC were age, shockable rhythm, BLS before EMS arrival, and CA duration less than 30min.
  
  
  CONCLUSIONS
  The incidence rate of the OHCA is low. The proportion of patients receiving BLS from relatives was low. Age, shockable rhythm and BSL before EMS arrival were associated with ROSC.
authors.affiliation: Servicio de Medicina Intensiva, Hospital Son Llàtzer, Palma de Mallorca, España. Electronic address: lsocias@hsll.es.
authors.forename: L
authors.initials: L
authors.lastname: Socias Crespí
authors.affiliation: Servicio de Emergencias del 061 Illes Balears, SAMU_061, IB_Salut, Palma de Mallorca, España.
authors.forename: M I
authors.initials: MI
authors.lastname: Ceniceros Rozalén
authors.affiliation: Servicio de Emergencias del 061 Illes Balears, SAMU_061, IB_Salut, Palma de Mallorca, España.
authors.forename: P
authors.initials: P
authors.lastname: Rubio Roca
authors.affiliation: Servicio de Emergencias del 061 Illes Balears, SAMU_061, IB_Salut, Palma de Mallorca, España.
authors.forename: N
authors.initials: N
authors.lastname: Martínez Cuellar
authors.affiliation: Servicio de Medicina Intensiva, Hospital Son Llàtzer, Palma de Mallorca, España.
authors.forename: A
authors.initials: A
authors.lastname: García Sánchez
authors.affiliation: Servicio de Cardiología, Ciberobn, Grupo de investigación en cardiopatías genéticas y muerte súbita de les Illes Balears, Hospital Son Llàtzer, Palma de Mallorca, España.
authors.forename: T
authors.initials: T
authors.lastname: Ripoll Vera
authors.affiliation: Servicio de Medicina Intensiva Plan Nacional de RCP, SEMICYUC, Hospital Universitario Nuestra Señora de Valme, Sevilla, España.
authors.forename: A
authors.initials: A
authors.lastname: Lesmes Serrano
mesh_terms: D000368:Aged; D016887:Cardiopulmonary Resuscitation; D047548:Defibrillators / Q000706:statistics & numerical data; D004554:Electric Countershock / Q000706:statistics & numerical data; D004630:Emergencies; D004632:Emergency Medical Services / Q000706:statistics & numerical data; D005260:Female; D005392:First Aid / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D008020:Life Support Care / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D058687:Out-of-Hospital Cardiac Arrest / Q000453:epidemiology* / Q000628:therapy; D020127:Recovery of Function; D013030:Spain / Q000453:epidemiology
keywords: Cardiopulmonary resuscitation; Emergency medical service; Epidemiology; Epidemiología; Mortalidad; Mortality; Out-of-hospital cardiorespiratory arrest; Parada cardiaca extrahospitalaria; Reanimación cardiopulmonar; Recovery of spontaneous circulation; Recuperación espontánea de la circulación; Servicios de emergencias médicas