Arterial Pressures in Street Dogs: Incidence and Significance of Hypertension

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Abstract
Arterial pressures of 400 street dogs were measured with a mercury manometer and in 319 were in the range 110-140 mm. Hg. Only 9 of the group lay in the range of "spontaneous hypertension" with pressures greater than 150 mm. Hg. Pressures of 7 of these fell with training; the 2 remaining were found to have subnormal plasma clearances of p-aminohippurate and creatinine and demonstrated renal disease at autopsy. Thus it seems likely that "spontaneous hypertension" in dogs usually reflects renal disease and is not comparable to human essential hypertension. Further, the narrow spread of the data in this series suggests that skill on the part of the observer is at least as important as the training of the dog in securing satisfactory measurements of arterial pressure.

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