title: Evaluation of 2 different instruments for exposing the chest in conjunction with a cardiac arrest.
abstract: BACKGROUND
  Time between onset of cardiac arrest and start of treatment is of ultimate importance for outcome. The length of time it takes to expose the chest in out-of-hospital cardiac arrest (OHCA) is not known. We aimed to compare the time from onset of OHCA until the time at which the chest was exposed using a new device (S-CUT; ES Equipment, Gothenburg, Sweden) and a pair of scissors.
  
  
  METHODS
  In a manikin study, the 2 devices were compared in a simulated cardiac arrest where the initial step was exposure of the chest. The tests were performed using ambulance staff from 3 different ambulance organizations in Western Sweden. Six different types of clothing combinations were used. The primary choices of clothing for analyses were a knitted sweater and shirt (indoors) and a jacket with buttons, a shirt, and a college sweater (outdoors).
  
  
  RESULTS
  The mean difference from onset of OHCA until the chest was exposed when S-CUT was compared with a pair of scissors varied between 6 seconds (P = .006) and 63 seconds (P = .004; shorter with the S-CUT), depending on the type of clothing that was used. The mean differences for the clothing that was chosen for primary analyses were 23 and 63 seconds, respectively.
  
  
  CONCLUSIONS
  We found that a new device (S-CUT) used for exposing the chest in OHCA was associated with a marked shortening of procedure time as compared with a pair of scissors.
authors.affiliation: Department of Molecular and Clinical Medicine, Institution of Medicine, Sahlgrenska University Hospital, SE-413 45 Göteborg, Sweden.
authors.forename: Solveig
authors.initials: S
authors.lastname: Aune
authors.forename: Thomas
authors.initials: T
authors.lastname: Karlsson
authors.forename: Johan
authors.initials: J
authors.lastname: Herlitz
mesh_terms: D000328:Adult; D003020:Clothing; D004632:Emergency Medical Services; D005260:Female; D006323:Heart Arrest / Q000628:therapy*; D006801:Humans; D008297:Male; D008348:Manikins; D008875:Middle Aged; D012151:Resuscitation / Q000295:instrumentation*; D013997:Time Factors