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背景:几乎一半的心力衰竭患者射血分数尚保存(HFpEF)。运动耐受不良症状和呼吸困难最常归因于舒张功能障碍,然而,负荷下收缩和(或)动脉舒张储备受
Background: Nearly half of heart failure patients have preserved ejection fraction (HFpEF). Motor-stress tolerance and dyspnea are most often attributed to diastolic dysfunction, however, contractions under load and (or) diastolic reserve