Coronary Venous Occluded Pressure

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Abstract
Introduction The transmission of an arterial pressure across its capillary bed and the recording of this pressure by way of a catheter wedged into a vein, has been previously reported, especially for the lung.1 Furthermore, in the case of the pulmonary venous wedged pressure, not only the method for its recording and the configuration of this pressure have been amply described, but also interpretations have been offered as to the significance of this pressure2 and its relationship to pulmonary flow and pulmonary vascular resistance.3,4 To our knowledge, however, with the exception of the pioneering work of Gregg,5 similar attempts have not been made for one of the most important districts of the cardiovascular system, the capillary bed of the heart itself. The present work was undertaken in order to standardize the methods of recording the coronary venous wedged pressure, to describe its configuration and the factors

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