BLOOD pressure is measured as one index of the adequacy of the circulation. Circulating blood delivers to tissue adequate oxygen and carries away metabolic products. Adequate function depends on the volume of blood flow and rate. But Schumer et al1 reported that there was no correlation between blood pressure and the microcirculatory change. In fact, blood pressure can be quite independent of flow, and blood flow is not readily measured and the limits of volume perfusion related to metabolic activity of various tissues have not been defined.2
The purpose of this study was to observe the relationship of the microcirculation of the intestinal system and systemic arterial blood pressure in dog before and during shock.
Material and Method
Twenty mongrel dogs of both sexes weighing 8.9 to 19.6 kg were used. The principles of laboratory animal care as promulgated by the National Society for Medical Research were observed.
Matsumoto T, Hardaway RM, McClain JE. Microcirculation in Hemorrhagic Shock With Relationship to Blood Pressure. Arch Surg. 1967;95(6):911-917. doi:10.1001/archsurg.1967.01330180059011