Common carotid artery occlusion reflex in unanesthetized dogs

¹ Department of Physiology and Biophysics, University of Mississippi School of Medicine, Jackson, Mississippi

The quantitative changes in systolic pressure, diastolic pressure, mean pressure and pulse rate produced by 128 bilateral occlusions of the common carotid arteries in nine conscious dogs are reported. The average of the values measured before occlusion were: systolic pressure, 176 mm Hg; diastolic pressure, 80 mm Hg; mean pressure, 117 mm Hg; pulse rate, 101 pulses/min. Increases of 28%, 50%, 39%, and 28%, respectively, were obtained as a result of the occlusions.