Abstract
The aim of this study was to assess agreement between different methods of blood pressure measurement in anaesthetised baboons. Systolic and diastolic blood pressure (SBP and DBP) were measured in anaesthetised baboons using intra-arterial radiotelemetry, automated oscillometry and mercury sphygmomanometry. Correlation between the different methods was assessed. The correlation between intra-arterial radiotelemetry and automated oscillometry was 0.9 (P<0.001) for SBP and 0.9 (P<0.001) for DBP. Between-method differences were -4.4±7.2mm Hg for SBP and -3.4±7.1mm Hg for DBP. For automated oscillometry vs. mercury sphygmomanometry, correlation was 0.4 for both SBP (P<0.001) and DBP (P<0.001). Between-method differences were 7.9±12.7mm Hg for SBP and 7.3±12.6mm Hg for DBP. Our study demonstrates that automated oscillometry may be an appropriate alternative to telemetry for measuring blood pressure in anaesthetised baboons.
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