title: Comparison of high definition oscillometric and Doppler ultrasound devices with invasive blood pressure in anaesthetized dogs.
abstract: OBJECTIVE
  To use the American College of Veterinary Internal Medicine (ACVIM) validation criteria to evaluate the performance of high definition oscillometric (HDO) and Doppler blood pressure measurement techniques against invasive blood pressure measurements in anaesthetized dogs.
  
  
  METHODS
  Prospective clinical study.
  
  
  METHODS
  Twenty client-owned dogs.
  
  
  METHODS
  Invasive blood pressure was measured using a catheter inserted into a pedal artery and an electronic transducer. The sites of cuff placement for the HDO measurements were the mid antebrachium or the proximal tail and, for the Doppler technique, the distal tibia. Agreement between invasive and non-invasive blood pressure measurements was estimated by the Bland-Altman method.
  
  
  RESULTS
  Only 10% and 34% of Doppler measurements were within 10 and 20 mmHg of invasive blood pressure values, respectively. The Doppler device failed to meet the ACVIM validation criteria for blood pressure measurement devices. The best agreement between HDO and invasive blood pressure measurement technique was observed for mean arterial blood pressure (MAP); 67% and 95% of readings were within 10 and 20 mmHg of invasive blood pressure values respectively. In addition, 52% and 87% of diastolic arterial blood pressure (DAP) measurements were within 10 and 20 mmHg of invasive readings. High definition oscillometric readings did not meet ACVIM recommended limits for SAP.
  
  
  CONCLUSIONS
  The Doppler technique overestimated and the HDO device showed limited agreement with invasive blood pressure measurement in anaesthetized dogs. High definition oscillometry met most of the ACVIM requirements for MAP and DAP while the Doppler technique did not.
authors.affiliation: Clinic for Small Animal Medicine and Surgery, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia. alenka.seliskar@vf.uni-lj.si
authors.forename: Alenka
authors.initials: A
authors.lastname: Seliškar
authors.forename: Petra
authors.initials: P
authors.lastname: Zrimšek
authors.forename: Jerneja
authors.initials: J
authors.lastname: Sredenšek
authors.forename: Aleksandra D
authors.initials: AD
authors.lastname: Petrič
mesh_terms: D000758:Anesthesia / Q000662:veterinary; D000818:Animals; D001794:Blood Pressure / Q000502:physiology; D001795:Blood Pressure Determination / Q000379:methods / Q000662:veterinary*; D004285:Dogs / Q000502:physiology*; D005260:Female; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods / Q000662:veterinary; D009991:Oscillometry / Q000379:methods / Q000662:veterinary; D018608:Ultrasonography, Doppler / Q000379:methods / Q000662:veterinary