1. Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, Japan, Japan 2. Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Japan
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56-year-old man with chronic thromboembolic pulmonary hypertension (CTEPH) admitted to our hospital. Two times of balloon pulmonary angioplasty (BPA) decreased the mean pulmonary artery pressure (PAP) from 37 to 20 mmHg and pulmonary vascular resistance (PVR) from 3.2 to 2.7 Woods unit. However, he showed persistent exercise intolerance (WHO-functional class III). We performed perfusion SPECT and CT pulmonary angiogram (CTPA) and found some residual lesions including total occlusion.