title: A comparison of stroke volume variation measured by Vigileo/FloTrac system and aortic Doppler echocardiography.
abstract: BACKGROUND
  The goal of this study was to compare stroke volume variation (SVV) assessed from a peripheral artery with the Vigileo/FloTrac system (SVV-FloTrac) with SVV derived close to the heart by aortic Doppler (SVV-Doppler).
  
  
  METHODS
  Thirty patients undergoing liver transplantation underwent simultaneous SVV-FloTrac and SVV-Doppler measurements before and after intravascular volume expansion.
  
  
  RESULTS
  SVV-FloTrac and SVV-Doppler comparison before intravascular volume expansion showed a mean bias of 0.7%, and 95% limits of agreement of -4.2% to 5.5%. The areas under the receiver operating characteristic curves generated to discriminate responders and nonresponders to intravascular volume expansion were not different for SVV-FloTrac and SVV-Doppler.
  
  
  CONCLUSIONS
  SVV-FloTrac and SVV-Doppler measurements show acceptable bias and limits of agreement, and similar performance in terms of fluid responsiveness in patients undergoing liver transplantation.
authors.affiliation: Service d'Anesthésie Réanimation I, Hôpital Pellegrin, Centre Hospitalo-Universitaire de Bordeaux, 33076 Bordeaux Cedex, France. matthieu.biais@chu-bordeaux.f
authors.forename: Matthieu
authors.initials: M
authors.lastname: Biais
authors.forename: Karine
authors.initials: K
authors.lastname: Nouette-Gaulain
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Roullet
authors.forename: Alice
authors.initials: A
authors.lastname: Quinart
authors.forename: Philippe
authors.initials: P
authors.lastname: Revel
authors.forename: François
authors.initials: F
authors.lastname: Sztark
mesh_terms: D001158:Arteries / Q000502:physiology*; D015150:Echocardiography, Doppler / Q000295:instrumentation*; D005260:Female; D005440:Fluid Therapy; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D016031:Liver Transplantation / Q000502:physiology; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D011237:Predictive Value of Tests; D012372:ROC Curve; D013318:Stroke Volume / Q000502:physiology*