Abstract
A method for measuring intra-arterial blood pressure in unanesthetized dogs for as long as 12 months through the implantation of polyvinyl catheters in the abdominal aorta is described. Direct intra-aortic pressures ranged from 135 to 204 mm Hg for systolic blood pressures and 57 to 123 mm Hg for diastolic blood pressures over periods ranging from 8 to 12 months. This method provides a means for following blood pressure for a long period with minimal disturbance in the behavior of the animal. This also makes possible an additional cardiovascular measurement in the studies of the cardiac conditional reflexes.
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Supported by grants HE-06945-03 from the National Heart Institute and NsG-520 from the National Aeronautics and Space Administration.
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Perez-Cruet, J. Chronic painless recording of intra-arterial blood pressure in unanesthetized dogs. Conditional Reflex 2, 80–84 (1967). https://doi.org/10.1007/BF03034098
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DOI: https://doi.org/10.1007/BF03034098