Abstract
THE development of pulmonary edema in heart disease is closely related to the cardiac decompensation. Its fundamental disorder is generally believed to be the intensification of pulmonary congestion due to the cardiac decompensation. This concept, however, depends on the indirect evidences such as clinical symptoms, chest X-ray findings and the measurement of pulmonary vascular pressures and central blood volume.With the introduction of left heart catheterization by transseptal route, it has become possible to study the dynamics of the left heart with safety and little discomfort to the patient. Utilization of indicator-dilution technique, combined with simultaneous right and transseptal left heart catheterizations, has made it possible to estimate more precise quantitation of pulmonary congestion, i. e., the true pulmonary blood volume and pulmonary circulation time.The purpose of this presentation is to report the role of heart failure in the pathogenesis of pulmonary congestion and edema in heart disease.
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