[Invasive arterial blood pressure measurement using an aneroid pressure system in cattle].
The aim of this study was to compare the results of invasive arterial blood pressure measurement using an electronic pressure transducer (EPT) or an aneroid pressure system (APS) in cattle. A catheter was placed in the auricular artery of 11 adult cattle and connected to a pressure transducer via pressure line. The aneroid system was connected to the same catheter using a three-way stop-cock in the pressure line. On five occasions three consecutive measurements were performed with the APS. The mean blood pressure values of the EPT were recorded before each individual measurement. Values from each device were compared using Passing and Bablok regression of agreement and a Bland and Altman difference plot. One hundred and forty-seven paired measurements were analysed. The average bias between the two methods (EPT vs. APS) was -1.6 mmHg (95 % confidence interval [CI]: -3.0 to -0.2 mmHg). The coefficient of correlation was 1.0084. The aneroid system showed an almost perfect agreement with the EPT. This study shows that it can be used in a clinical setting as well as under field conditions to measure arterial blood pressure in cattle.
Mosing
M
M
Klinik für Anästhesiologie und perioperative Intensivmedizin, Klinisches Department für Kleintiere und Pferde der Veterinärmedizinischen Universität Wien. mmosing@liv.ac.uk
Franz
S
S
Iff
I
I
Schwendenwein
I
I
D000818:Animals; D001794:Blood Pressure / Q000502:physiology*; D001795:Blood Pressure Determination / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D002404:Catheterization / Q000662:veterinary; D002417:Cattle / Q000502:physiology*; D005260:Female; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity