A 65-year-old woman was admitted to our hospital because of exertional dyspnea in 1987. A diagnosis of primary pulmonary hypertension was confirmed by right heart catheterization. She had received conventional therapy in the outpatient clinic. She was readmitted with the deterioration of exertional dyspnea in 1995. Stabilization of pulmonary hemodynamics, while not achieved with conventional therapy, was achieved with additive administration of an oral prostacyclin (PGI2) analogue, beraprost sodium.
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