AN EXPERIMENTAL STUDY OF THE STANDING WAVES IN THE PULSE PROPAGATED THROUGH THE AORTA

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Abstract
Hamilton metal membrane manometers connected to long movable cannulae of hypodermic needle tubing were used to obtain adequate direct recordings of the pressure pulse simultaneously at various paired positions in the carotid-aorta-iliac-femoral system, with and without internal occlusion of the vessels, in dogs with chests unopened. The development of the typical dicrotic femoral pulse with augmented systolic peak was traced from the aortic arch. Simultaneity of the peak and mutual reciprocity of the central and peripheral portions of the system in the early diastolic waves demonstrated the part played by standing waves in the development of the intermediate and peripheral pulse picture.