title: Pulse rate over pressure evaluation (ROPE) is useful in the assessment of compensated haemorrhagic shock.
abstract: OBJECTIVE
  To evaluate a calculation of pulse rate over pulse pressure as a method of predicting decompensation in patients with compensated haemorrhagic shock.
  
  
  METHODS
  A retrospective cohort study was undertaken enrolling 184 adult victims of major road trauma who were not shocked on presentation to the emergency department. A pulse rate over pressure evaluation was calculated at presentation and vital signs were observed during the first 2 h of emergency department management.
  
  
  RESULTS
  Thirty-one patients became shocked during their first 2 h. A ROPE value of greater than 3.0 had a positive predictive value of 53% and a value less than 3.0 had a negative predictive value of 86% for the development of decompensated shock.
  
  
  CONCLUSIONS
  ROPE is an easily applied and useful clinical tool with a ROPE of less than 3.0 being predictive of a patient remaining well and a ROPE of above 3.0 being predictive of the patient developing decompensated shock.
authors.affiliation: Emergency Department, Christchurch School of Medicine, Christchurch Hospital, New Zealand. michaela@chh1th.govt.nz
authors.forename: M W
authors.initials: MW
authors.lastname: Ardagh
authors.forename: T
authors.initials: T
authors.lastname: Hodgson
authors.forename: L
authors.initials: L
authors.lastname: Shaw
authors.forename: D
authors.initials: D
authors.lastname: Turner
mesh_terms: D000293:Adolescent; D000328:Adult; D001794:Blood Pressure; D006339:Heart Rate; D006801:Humans; D015601:Injury Severity Score; D009520:New Zealand / Q000453:epidemiology; D011237:Predictive Value of Tests; D012372:ROC Curve; D012189:Retrospective Studies; D012771:Shock, Hemorrhagic / Q000175:diagnosis* / Q000401:mortality; D016896:Treatment Outcome; D014218:Triage / Q000379:methods*