Indirect measurement of systemic blood pressure in conscious dogs in a clinical setting
2008
Hsiang, T.Y.(National Taiwan Univ., Taipei) | Lien, Y.H. | Huang, H.P.
The present study compared 2 indirect methods, Doppler sphygmomanometry and oscillometry, for measurement of the systemic blood pressure level in 100 conscious, client-owned dogs in a clinical setting on 2 separate occasions. The mean systemic blood pressure values, measured by Doppler sphygmomanometry on 2 separate occasions, were 156 +-38.2 mm Hg and 150+-34.1 mm Hg, respectively. Using oscillometry, the mean systolic blood pressure values were 138+-36.9 nun Hg and 133+- 33.5 mm Hg on 2 separate occasions. There were significant differences between the systemic blood pressure readings for both methods on the same occasion (P0.001). The coefficients of variance from 5 consecutive measurements in the same dog obtained by Doppler sphygmomanometry on the 2 separate occasions were 4.1+-3.2% and 3.1+-1.7%; that of the oscillometric method on the 2 separate occasions were 18.7+-11.3% and 17.2+-12.5%. The coefficients of variance of these 2 methods were statistically different on each occasion (P0.001). Five consecutive systemic blood pressure readings were obtained for each dog within 6 min on both occasions using Doppler sphygmomanometry. More than 15 min was required to complete 5 consecutive systemic blood pressure readings by oscillometric sphygmomanometry for all dogs on each occasion. The results of this study indicate that Doppler sphygmomanometry provides more efficient and precise measurements of the systemic blood pressure level than oscillometric testing in conscious dogs in a clinical setting.
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